Benzene at 20°C has a viscosity of 0. 000651 Pa. S. What shear stress is required to deform this fluid at a velocity gradient of 4900 s-1 ?
​

(1) The volume of reconstituted solution is 5 mL. Option B is correct. (2)The amount of penicillin needed is 0.5 mL. Option A is correct. (3)Total 4 Mini-Bags o cover 24 hours of treatment. Option D is correct. (4)Total, 15 ml. will be needed to drawn up for one dose. Option D is correct. (5)The required amount of heparin solution is 8 mL. Option D is correct.

To calculate the volume of reconstituted solution needed to provide the 500 mg dose of ampicillin, we can use the formula;

Volume (mL) = Dose (mg) / Concentration (mg/mL)

Dose = 500 mg

Concentration = 100 mg/mL

Volume (mL) = 500 mg / 100 mg/mL

= 5 mL

Hence. B. is the correct option.

To calculate the amount of penicillin needed to provide the prescribed dose for each 50-mL MiniBag, we can use the ratio:

Prescribed dose : Total amount in the vial = Volume drawn up : Volume of the vial

Prescribed dose = 500,000 units

Total amount in the vial = 5,000,000 units

Volume of the vial = 20 mL

Volume drawn up = (Prescribed dose / Total amount in the vial) × Volume of the vial

Volume drawn up = (500,000 units / 5,000,000 units) × 20 mL

Volume drawn up = 0.1 mL

Hence, A. is the correct option.

To cover 24 hours of treatment, you would provide the number of MiniBags required to administer the prescribed dose every 6 hours:

24 hours / 6 hours = 4 MiniBags

Hence, D. is the correct option.

The required dose is 12 mg, and the available concentration is 4 mg/5 mL. We can use the ratio;

Dose : Concentration = Volume drawn up : Total volume

Dose = 12 mg

Concentration = 4 mg/5 mL

Volume drawn up = (Dose / Concentration)  ×  Total volume

Volume drawn up = (12 mg / 4 mg/5 mL)  ×  5 mL

Volume drawn up = 15 mL

Hence, D. is the correct option.

The required amount of heparin solution to be injected into the D5W 1000-mL bag can be calculated using the ratio:

Amount to be injected : Concentration = Volume drawn up : Total volume

Amount to be injected = 40,000 units

Concentration = 10,000 units/mL

Volume drawn up = (Amount to be injected / Concentration)  ×  Total volume

Volume drawn up = (40,000 units / 10,000 units/mL)  ×  2 mL

Volume drawn up = 8 mL

Hence, D. is the correct option.

To know more about heparin solution here

https://brainly.com/question/29799469

#SPJ4

Answer:19

Explanation:

Answer:

C.164.1g/mol

Explanation:

40+14×2+16×6

164

The molar mass of Ca(NO3)2 is 164.1 g/mol.

Calcium nitrate, also called Norgessalpeter (Norwegian salpeter), is an inorganic compound with the formula Ca(NO3)2(H2O)x. The anhydrous compound, which is rarely encountered, absorbs moisture from the air to give the tetrahydrate. Both anhydrous and hydrated forms are colourless salts. Calcium nitrate is mainly used as a component in fertilizers, but it has other applications. Nitrocalcite is the name for a mineral which is a hydrated calcium nitrate that forms as an efflorescence where manure contacts concrete or limestone in a dry environment as in stables or caverns. A variety of related salts are known including calcium ammonium nitrate decahydrate and calcium potassium nitrate decahydrate.

Learn more about Calcium nitrate

https://brainly.com/question/3002815

#SPJ2

Answer: Its A Your Welcome

In animal skin tissue, cell division is responsible for growth and repair. The correct answer is option A.

Cell division is the process by which a single cell divides into two or more daughter cells. This process is essential for growth, repair, and reproduction in living organisms.

Cell division in animal skin tissue is responsible for growth and repair. When the skin is damaged, cells divide to repair the damaged area.

There are two main types of cell division:

Additionally, cell division is responsible for the growth of skin tissue during development and throughout the life of the organism.

Therefore, the correct answer is option A. Growth and repair.

Learn more about Cell division here:

https://brainly.com/question/29773280

#SPJ6

Answer:

O-H

Explanation:

It is polar covalent bond, because the hydrogen atom has electronegativity about 2.6, and the oxygen atom, electronegativity about 3.6. When the difference in electronegativity of the atoms is between 0.4 and 1.7, the result is a polar covalent bond.

The letter designations for the first four sublevels with the maximum number of electrons that can be accommodated in each sublevel are : s:2, p:6, d:10, and f:14.

According to their energies, electrons are arranged into groups called shells (labeled by the principle quantum number, n). A shell's average distance from the nucleus increases with its energy in general. Subshells are smaller groups of electrons within a shell. One subshell is present in the first shell, two subshells are present in the second shell, three subshells are present in the third shell, and so on.

The letters s, p, d, and f are used to identify each shell's subshells in alphabetical sequence. Thus, the first shell only contains one s subshell (designated 1s), the second shell has two subshells (named 2s and 2p), the third shell has three subshells (called 3s, 3p, and 3d), and so on. The maximum number of electrons that can be held by a subshell varies. Any s subshell can hold up to 2 electrons; p, 6; d, 10; and f, 14.

Learn more about electrons here:

https://brainly.com/question/1255220

#SPJ4

Answer:

The solution turns purple because ammonia is a base.

The solution turned red.

Ammonia gas is neutral, but ammonia solution ( ammonium hydroxide ) is a base.

Adding vinegar to ammonia suppresses its dissociation hence decrease in hydroxyl ion concentration.

If more ammonia is added to the solution, the pink color re-appears.

Geometry is a branch of mathematics that deals with shapes, sizes, and spatial relationships. It is used to measure, analyze, and describe the properties of figures and objects.

Geometric shapes such as circles, squares, and triangles provide the basis for understanding measurements such as angles, perimeters, and areas. Geometry is also used to calculate volume and surface area. Geometry is often used in engineering, architecture, and design.

For example, architects often use geometry to create plans for buildings. Engineers use geometry to design machines and structures. Geometric principles can also be used to solve problems in other areas such as physics, chemistry, and biology.

Geometry is also important for navigation, as the principles of geometry are used to determine the shortest distance between two points. Geometry is a fundamental part of mathematics and is used to understand the world around us.

By understanding geometric principles, we can better understand our environment and the relationships between objects in it.

To know more about analytical geometry, click below:

https://brainly.com/question/26912014

#SPJ4

To calculate the subscripts in the actual molecular formula, we first have to find out the empirical formula of the given compound. Empirical formula mass is the sum of the atomic masses of all the atoms in a formula unit of the empirical formula of a compound.

To calculate the empirical formula mass, we add up the atomic masses of all the atoms present in a molecule of a compound. Using the molecular formula mass and empirical formula mass, we can calculate the actual molecular formula of the compound. The subscripts in the actual molecular formula are calculated by dividing the molecular formula mass of the compound by the empirical formula mass of the compound. Let's consider an example to understand how to calculate the subscripts in the actual molecular formula.

Example:

The empirical formula of a compound is CH2O, and the molecular formula mass of the compound is 180 amu. The empirical formula mass can be calculated using the formula:

Empirical formula mass = sum of atomic masses of atoms in the empirical formula

= (1 × atomic mass of C) + (2 × atomic mass of H) + (1 × atomic mass of O)

= (1 × 12.01 amu) + (2 × 1.01 amu) + (1 × 16.00 amu)

= 30.03 amu

Molecular formula mass = 180 amu

Now, we can calculate the ratio of the molecular formula mass to the empirical formula mass as:

180 amu ÷ 30.03 amu

= 6

The actual molecular formula will have six times the number of atoms as the empirical formula: C6H12O6. Therefore, the subscripts in the actual molecular formula of the compound are C6H12O6.

To know more about molecular formula visit:

brainly.com/question/28647690

#SPJ11

The subscripts of a molecular formula, where its mass is known, can only be determined when the elements in the compound are specified. The subscripts in this case are the ratios of these elements. Without these, one can only give hypothetical answers, like a carbon dioxide compound repeated five times which gives subscripts of 5 (C5O10).

To deteremine the subscripts in the actual molecular formula, one first needs to know the formula of the compound itself. Without knowing the elements in the compound, we cannot ascertain the subscripts from the molecular formula mass. For example, if the compound is carbon dioxide (CO2), and knowing that the molecular mass of carbon (C) is approximately 12 amu and oxygen (O) is 16 amu, we know that two oxygens (16 * 2) with one carbon (12) has a total mass of 44 amu. Repeating this compound 5 times (as 240 is 5 times 44) would imply, in this hypothetical case, subscripts of 5, making the compound C5O10 . However, to get actual subscripts we need specifics about the compound's elements.

https://brainly.com/question/35282824

#SPJ12

The question requires us to calculate the number of moles of NaCl in 1.66 L of a 0.400 M NaCl solution.

To answer this question, we need to keep in mind that the molar concentration provides the amount of moles in one liter solution. Thus, we can write that:

1 L of NaCl solution -------------- 0.400 mol of NaCl

We can use this information to calculate the amount of NaCl, in moles, in 1.66 L in a 0.400 M NaCl solution:

1 L of NaCl solution -------------- 0.400 mol of NaCl

1.66 L of NaCl solution --------- x

Solving for x, we have:

Therefore, there are 0.664 moles of NaCl in 1.66 L of a 0.400 M NaCl solution.

Answer:

204,375 mL.

Explanation:

327 mL - 3.2 M

x mL - 2 M

x= (2 M x 327 mL) /3.2 M

x= 204,375 mL.

Answer:

In a 7-step scientific method, Spongebob utilized the 6th step when He wrote a brief summary of the investigation, and Spongebob utilized the 7th step when He also determined that his hypothesis statement was not right and explained why it wasn't right by providing evidence from the investigation.

Explanation:

Scientific Methods are organized ways employed by scientists to tackle problems by providing solutions to the problem or make hypotheses to which other scientists build on to provide solutions to the problem.

The steps of the scientific method are:

Step 1- Understand the Problem

Step 2-  Make research

Step 3- Hypothesis.

Step 4- Conduct an experiment to test the hypothesis

Step 5- Observations.

Step 6-Results/Conclusion.

Step 7- Communicate your research

When Spongebob wrote a brief summary of the investigation, which means he had already conducted an experiment and had already made necessary observations and data collection, so he was at step 6. At step 6, he had analyzed the data collected.

When Spongebob determined that his hypothesis statement was not right and explained why it wasn't right by providing evidence from the investigation, then he was at the final step of the scientific method. Step 7 tells whether the hypothesis is true or false.

Answer:

hey im spongebob

Explanation:

:D

Answer:  

Solubility is a property referring to the ability for a given substance, the solute, to dissolve in a solvent. It is measured in terms of the maximum amount of solute dissolved in a solvent at equilibrium. The resulting solution is called a saturated solution.

the state of being thick, sticky, and semifluid in consistency, due to internal friction.or a quantity expressing the magnitude of internal friction, as measured by the force per unit area resisting a flow in which parallel layers unit distance apart have unit speed relative to one another.

1.  frequency

the rate at which something occurs or is repeated over a particular period of time or in a given sample.

Ductile: of a metal) able to be drawn out into a thin wire.

able to be deformed without losing toughness; pliable, not brittle

Malleable:(of a metal or other material) able to be hammered or pressed permanently out of shape without breaking or cracking.

Combustible:able to catch fire and burn easily.

Radioactive:Radioactivity is the spontaneous emission of radiation in the form of particles or high energy photons resulting from a nuclear reaction. ... A substance that contains unstable atomic nuclei is considered to be radioactive. Radioactive decay is a random or stochastic process that occurs at the level of individual atoms.

Corrosive:t ending to cause corrosion(Corrosion is when a refined metal is naturally converted to a more stable form such as its oxide, hydroxide or sulphide state this leads to deterioration of the material.)

Explanation:

(source: google for all)

The effects of volcanic eruption include acid rain and destruction of lives and property.

The term abiotic factors refers to those factors that are non living such as rainfall, topography, etc. The adaptation of organisms in avoiding unfavorable condition due to a change in abiotic factor is hibernation of a snake from September to December.

A volcanic eruption is a sudden outburst of molten magma from the earth's crust. The effects of volcanic eruption include acid rain and destruction of lives and property.

Learn more about volcanic eruptions: https://brainly.com/question/1622004

Teniendo en cuenta que la molaridad es el número de moles de soluto que están disueltos en un determinado volumen, la molaridad de la disolución de HNO₃ es 14.67 \(\frac{mol}{L}\).

El porcentaje en masa o en peso de una disolución es el número de gramos de soluto que hay por cada 100 gramos de disolución.

Entonces una pureza de 65% indica que hay 70 g de HNO₃ puro por cada 100 g de HNO₃ impuro.

Por otro lado, la densidad es la relación entre el peso o masa de una sustancia y el volumen que ocupa esa misma sustancia.

Entonces, si la disolución de HNO₃ tiene una densidad de 1.32 g/mL (equivalente a 1320 g/L), donde la cantidad de masa es impura, se puede obtener la cantidad de masa de HNO₃ presente 1 L de la solución mediante el siguiente cálculo:

\(\frac{1320 g HNO_{3} impuro}{1 L}x \frac{70 g HNO_{3}puro}{100 g HNO_{3}impuro}= 924 \frac{g HNO_{3}puro}{L}\)

Finalmente, la masa molar de HNO₃, es decir la masa presente en un mol de la sustancia, es 63 \(\frac{g}{mol}\).

Entonces, teniendo en cuenta que la molaridad es el número de moles de soluto que están disueltos en un determinado volumen, es posible determinar la molaridad como:

\(\frac{924 g HNO_{3}puro}{L}* \frac{1 mol}{63 g}= 14.67 \frac{mol}{L}\)

En resumen, la molaridad de la disolución es 14.67 \(\frac{mol}{L}\)

Aprende más sobre la molaridad:

Answer:

Decomposition reaction

Explanation:

2PbO2 → 2PbO + O2

2PbO2 is reactant.

2PbO + O2 is the product.

Definition : -

Decomposition reaction is a chemical reaction in which a single reactant breaks down to simpler products.

The equilibrium concentrations are [H₂] = 1.685 M, [F₂] = 1.685 M, and [HF] = 2.630 M.

Let's first write the balanced equation for the formation of hydrogen fluoride from hydrogen and fluorine:

H₂(g) + F₂(g) ⇌ 2HF(g)

The equilibrium constant expression for this reaction will be:

Kc = [HF]² / [H₂] [F₂]

where the square brackets indicate the equilibrium concentrations of each species.

We are given that the equilibrium constant is 1.15 x 10². Now we can use an ICE (Initial-Change-Equilibrium) table to calculate the equilibrium concentrations of all species:

H₂ F₂ 2HF

Initial 3.000 M 3.000 M 0

Change -x -x +2x

Equilib 3.000-x 3.000-x 2x

where x will be the change in concentration at equilibrium.

Substituting these values into the equilibrium constant expression and solving for x, we get:

1.15 x 10² = (2x)² / (3.000-x)²

Solving for x, we get:

x = 1.315 M

Therefore, the equilibrium concentrations of each species are:

[H₂] = 3.000 - x = 1.685 M

[F₂] = 3.000 - x = 1.685 M

[HF] = 2x = 2.630 M

To know more about equilibrium concentrations here

https://brainly.com/question/16645766

#SPJ4

Answer:

gain electrons

Explanation:

"atoms gain electrons, they acquire a negative charge "

166.87 g of aluminum chloride are created when 34 g of aluminum and 39 g of chlorine gas are combined.

One mole of aluminum and three moles of chlorine combine to generate the ionic compound aluminum chloride.

Al + 3Cl → AlCl3

This reaction results in the formation of AlCl3 from one mole of Al and three moles of Cl. Here, Al serves as the limiting reactant. So the product's mass is solely dependent on Al.

Al has an atomic mass of 27 g/mol.

133.5 g/mol for AlCl3.

Al has a given mass of 34 g. Therefore, there are 1.25 moles instead of 34 moles because of the ratio of 27 to 34.

Thus, 1.25 moles of aluminum produce 1.25 moles of aluminum chloride from 1 mole of aluminum.

1.25 mole of AlCl3 weighs 1.25 mol and 133.5 g/mol =  166.87 g.

As a result, the reaction produced 166.87 g of AlCl3.

Learn more about  aluminum chloride here:

https://brainly.com/question/14510824

#SPJ4

Answer:

By decreasing the emition of methane, so2(sulfur dioxide) and no2(nitrogen dioxide)

Explanation:

Decreasing the emition of this gases could prevent acidic rain. Preventing acidic rain makes the lake support life.

Answer:

The heat required to vaporize 102.3 grams of H₂O(l) is 231198 J.

Explanation:

The heat required to vaporize 102.3 g of H₂O(l) can be calculated as follows:

\( q = m*\Delta H_{v} \)

Where:

q: is the heat  

ΔHv: is the heat of vaporization of water = 2260 J/g

m: is the mass = 102.3

\(q = m*\Delta H_{v} = 102.3 g*2260 J/g = 231198 J\)

Therefore, the heat required to vaporize 102.3 grams of H₂O(l) is 231198 J.

I hope it helps you!

The heat required to vaporize 102.3 grams of H₂O(l) is 231198 J.

The heat required to vaporize 102.3 g of H₂O(l) can be calculated as follows:

\(q=m\times H_v\).....(1)

Here,  q is the heat  

\(H_{v}\): is the heat of vaporization of water = 2260 J/g

m: is the mass = 102.3 g

Substitute the value in equation (1) as follows:-

\(q=102.3\ g\times2260\ J/g\\\\=231198\ J\)

Therefore, the heat required to vaporize 102.3 grams of H₂O(l) is 231198 J.

To know more about:-

brainly.com/question/12625048

Answer:

Coefficient of 1 for all except Cl2, which has a coefficient of 3.

Explanation:

The left side of the equation has 6 chlorine atoms, so the right side also needs 6 chlorine atoms.

Answer: The reaction \(2AgNO_3(aq)+K_2SO_4(aq)\rightarrow Ag_2SO_4(s)+2KNO_3(aq)\) is a double displacement or precipitation reaction

Explanation:

A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.  

A double displacement reaction in which one of the product is formed as a solid is called as precipitation reaction.

The balanced chemical equation is:

\(2AgNO_3(aq)+K_2SO_4(aq)\rightarrow Ag_2SO_4(s)+2KNO_3(aq)\)

The combined heat of hydration for the ions in the imaginary ionic compound is 537.0 kJ/mol.                                    

The heat of hydration is the amount of heat released or absorbed when one mole of a substance dissolves in water. In this case, we have an imaginary ionic compound consisting of two ions, A+ and H-. The heat of lattice energy (AHattice) represents the energy required to break the ionic bond and separate the ions, while the heat of hydration (AHon) represents        the energy released when the ions are surrounded by water molecules. To calculate the combined heat of hydration, we need to subtract the heat of lattice energy from the heat of hydration. Thus, the combined heat of hydration can be calculated as :  AHon - AHattice = 98 kJ/mol - 635 kJ/mol = -537.0 kJ/mol

learn more about Hydration here:

https://brainly.com/question/30373695

#SPJ11

The ions in this imaginary ionic compound have a collective heat of hydration of -537 kJ/mol.

To determine the heat of hydration of an ionic substance, subtract the lattice energy from the enthalpy of solution.

Assume the hypothetical ionic compound is composed of a cation with a hydration heat of 98 kJ/mol and an anion with a lattice energy of 635 kJ/mol.

The following equation can be used to calculate the combined heat of hydration:

Combined heat of hydration = cation heat of hydration + anion heat of hydration - lattice energy

Heat of hydration combined = 98 kJ/mol + (-635 kJ/mol) = -537 kJ/mol

It is worth noting that the heat of hydration for the anion is negative because it involves energy release (exothermic process), whereas the heat of hydration for the cation is positive because it requires energy absorption (endothermic process).

For such more question on hydration:

https://brainly.com/question/11112492

#SPJ11

The aqueous solubility of He at 1 atm and 20°C is 0.0928 mg/L. To convert the aqueous solubility of He from mol/L/atm to mg/L, we need to consider the molar mass of He, which is approximately 4.003 g/mol.

The conversion factor we need is:

1 mol He / (4.003 g He) x 1000 mg / 1 g = 249.8 mg He / mol He

Using the given solubility of He at 20°C (0.00037 mol/L/atm), we can calculate the aqueous solubility of He at 1 atm and 20°C:

Aqueous solubility of He = (0.00037 mol/L/atm) x (1 atm) x (249.8 mg He/mol He)

Aqueous solubility of He = 0.0928 mg/L

Therefore, the aqueous solubility of He at 1 atm and 20°C is 0.0928 mg/L.

To know more about molar mass, visit:

https://brainly.com/question/22997914

#SPJ1

Explanation:

Review and Study Material Before Going to Class. ...

Take Good Notes. ...

Practice Daily. ...

Take Advantage of Lab Time. ...

Use Flashcards. ...

Use Study Groups. ...

Break Large Tasks Into Smaller Ones.

reading a variety of chemistry books

Answer:

An ion is an atom or molecule that carries an electric charge.

Ions are identified by the use of a superscript to show the sign and size of their electric charge.

Negatively charged ions are called anions, and positively charged ions are called cations.

Explanation:

An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across.

The aldol condensation reaction allows the formation of a new carbon-carbon bond and the introduction of functional groups in the resulting aldol product.

The aldol condensation reaction between the enolate anion of propanal and pentanal involves the following steps:

Formation of the enolate anion: Propanal (CH3CH2CHO) is deprotonated by a base, such as sodium hydroxide (NaOH), to form the enolate anion of propanal.

Nucleophilic attack: The enolate anion of propanal acts as a nucleophile and attacks the carbonyl carbon of pentanal (CH3(CH2)3CHO), forming a bond.

Formation of the aldol product: The bond formation leads to the formation of a new carbon-carbon bond, resulting in the formation of an aldol product. The aldol product is a β-hydroxyaldehyde, which contains both an alcohol (hydroxy) group and an aldehyde group.

Dehydration: The aldol product is often unstable and undergoes dehydration, either through heating or by the action of an acid catalyst. Dehydration leads to the formation of an α,β-unsaturated aldehyde or α,β-unsaturated ketone.

The aldol condensation reaction allows the formation of a new carbon-carbon bond and the introduction of functional groups in the resulting aldol product. The reaction is commonly used in organic synthesis to create complex molecules with increased structural diversity.

The choice of reactants and reaction conditions can be varied to control the regioselectivity and stereoselectivity of the reaction, enabling the synthesis of specific target compounds.

Learn more about aldol condensation from teh gievn link:

https://brainly.com/question/31558115

#SPJ11

The correct option to “species will have the highest ionization energy” is b. Ne (Neon)

Neon (Ne) will have the highest ionization energy among the given species. Ionization energy refers to the energy required to remove an electron from a neutral atom or ion.

In general, ionization energy increases across a period in the periodic table, as the atomic radius decreases and the effective nuclear charge (the attraction between the electrons and the nucleus) increases.

Neon is a noble gas with a full valence shell, making it highly stable.

It has the highest ionization energy among the given species since it requires significant energy to remove an electron from its already stable configuration.

To know more about ionization, refer here :

https://brainly.com/question/1602374#

#SPJ11