Answers
The percent mass per volume (% (m/v)) of the dextrose solution is 3.20%.
What is Dextrose Solution?
Dextrose solution is a type of intravenous (IV) fluid that contains a sterile, isotonic solution of dextrose (glucose) in water. Dextrose is a simple sugar that is the primary source of energy for the body's cells. Dextrose solutions are typically available in concentrations ranging from 5% to 50% and are used to provide hydration, calories, and a source of glucose for patients who are unable to eat or drink.
To calculate the percent mass per volume (% (m/v)) of a dextrose solution containing 8.00 g of dextrose in 2.50×10^2 mL of solution, we can use the formula:
% (m/v) = (mass of solute (g) / volume of solution (mL)) × 100%
Substituting the given values, we get:
% (m/v) = (8.00 g / 2.50×10^2 mL) × 100%
% (m/v) = 3.20%
Therefore, the percent mass per volume (% (m/v)) of the dextrose solution is 3.20%.
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Related Questions
The owner of Grizzly Tea Shack is thinking about adding iced tea to the menu. He
thinks he can do this with minimal effort by adding ice cubes to cups of hot tea.
He decides to measure how changing the number of ice cubes in a glass of
freshly brewed tea affects its cooling rate.
To begin, the owner varies the number of ice cubes, x, he puts in glasses of
freshly brewed tea. He then checks the temperature (in Celsius), y, of each glass
after 10 minutes.
Ice cubes Temperature after 10 minutes (in degrees Celsius)
2
17
3
5
6
6
20
10
11
15
Round your answers to the nearest thousandth.
Answers
Answer: 5,266
Explanation:
5,266
Please help I don’t have a lot of time left
Answers
Answer:
So sorry if I was wrong but I think it's B. Because from the source states,
https://socratic.org/questions/which-group-on-the-periodic-table-is-the-least-reactive-why
"The least reactive elements are those who have a full outermost valence shell ie they have 8 electrons in the outer shell so elements such as helium, neon, radon or the transition elements."
is a pH an atom, ion, molecule, macromolecule, or a cell?
Answers
Although there is some variation amongst tissues, the physiologically typical intracellular pH ranges from 7.0 to 7.4. Skeletal muscle in mammals typically has a pHi of 6.8 to 7.1.
A cell is it an atom?A cell is the basic membrane-bound living thing and can either have one or more cells. All the molecules required for an organism to function are found in cells. An atomic is 10-10m in size. In contrast, a cellular is 10-6 metres in size. Because all cells are composed of atoms, they are therefore bigger than atoms.
What keeps a cell's pH stable?Acid excretion, efflux through plasma membranes, and buffering mechanisms all work together to precisely preserve the pH of body fluids. Protons are extruded from the cytosol into the extracellular space through the organic cation transporter (MCT) and the Na+/H+ exchanger (NHE).
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A chemist ran the reaction and obtained 5.10 g of ethyl butyrate. What was the percent yield?
Answers
A chemist ran the reaction and obtained 5.10 g of ethyl butyrate. Therefore, 58.766 % is the percent yield.
What is ethyl butyrate?An ester is ethyl butyrate, known colloquially as ethyl butanoate or butyric ether. Propylene glycol, propanone, as well as kerosene are all soluble in it. It is extensively employed as artificial flavoring mimicking orange juice and is consequently utilized in practically all orange juices produced, even those labelled as "fresh" or "concentrated".
It is also employed in alcoholic drinks, as a solvents in fragrance items, and as a cellulose plasticizer.
C\(_4\)H\(_8\)O\(_2\) + C\(_2\)H\(_5\)OH \(\rightarrow\)C\(_6\)H\(_{12}\)O\(_2\) + H\(_2\)O
Molecular mass of butanoic acid=88 g/mole
Molecular mass of ethyl butyrate=116 g/mole
(7.10 g) / (88 g/mole) = 0.0806 moles of butanoic acid
0.0806 moles × 116 g/mole = 9.359 g of ethyl butyrate
% yield = (actual yield /theoretical yield) * 100
% yield = (5.50 g/9.359 g) * 100
% yield = 58.766 %
Therefore, 58.766 % is the percent yield.
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look at the picture provided. this figure is of ionic bonding. explain how you know
Answers
Answer:
yes
Explanation:
the bond between anion and cation is always ionic bond.
exactly 149.6J will raise the temperature of 10.0g of a metal from 25.0C. what is the specific heat capacity of the metal
Answers
Exactly 149.6J will raise the temperature of 10.0g of a metal from 25.0C. The specific heat capacity of the metal is 5.984 J/g°C.
What is specific heat capacity?The heat capacity of a sample of a substance divided by the mass of the sample yields the specific heat capacity (symbol c), also known as massic heat capacity. Informally, it is the quantity of heat that must be added to one unit of a substance's mass in order to raise its temperature by one unit. The specific heat capacity unit in the SI is the joule per kelvin per kilogram, or Jkg⁻¹K⁻¹. For instance, the specific heat capacity of water is 4184 J kg⁻¹K⁻¹, or the amount of energy needed to raise 1 kilogram of water by 1 K.
The specific heat capacity of the metal can be calculated using the equation Q = m × c ×ΔT.
Q = 149.6J
m = 10.0g
ΔT = (final Temperature - initial Temperature) = (25°C - 0°C) = 25°C
Plugging these values into the equation, we get:
149.6J = 10.0g × c ×25°C
Solving for c, we get:
c = \(\frac{149.6J}{(10.0g *25C)}\)
c = 5.984 J/g°C
Therefore, the specific heat capacity of the metal is 5.984 J/g°C.
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A buffer solution was prepared by mixing 50.0 mL of a 0.100 M solution of CH3COOH with 0.500 grams of NaCH3COO. The resulting mixture is diluted to 100.0 mL. What is the pH of the solution
Answers
Answer:
100.0
Explanation:
Have a great day god bless
An argon ion laser emits visible radiation with photons of energy 4.071 x 10-19 J. What is the
wavelength of the radiation?
Answers
The wavelength of the radiation emitted by the argon ion laser is \(4.854 * 10^-7 m\).
Wavelength is a property of any type of wave that refers to the distance between two adjacent points on the wave that is in phase, i.e., at the same point in their respective cycles. It is usually denoted by the Greek letter lambda (λ) and is measured in units of length, such as meters or nanometers.
The energy carried by the photon (E) is related to the wavelength (\(\lambda\)) through the following equation:
\(E=hc/\lambda\); where 'h' is the Plank's Constant and 'c' is the speed of light which is \(3* 10^{-7} m/s\).
We can say that
\(\lambda - hc/E\)
Now after substituting the given values, we get:
\(\lambda = (6.626 * 10^{-34} J.s * 3.00 * 10^8 m/s) / (4.071 * 10^{-19} J)\\\lambda = 4.854 * 10^-7 m\)
Therefore the wavelength of the radiation emitted by the argon ion laser is \(4.854 * 10^-7 m\).
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if you travel 60 miles per hour for 13 hours, how many total miles would you have traveled
Answers
Answer:
780
Explanation:
AT first this question looks difficult but if you read it closely its simple. so what we know is that for ever 60 miles he drives 13 hours. So all we have to do is mulyiply 60x13.
How many mL of C8H18 are needed to react with 0.0500 mol O2? 2 C8H18 (l) + 25 O2 (g) - 16 CO2(g) + 18 H20 (g) molar masses: C8H18 = 114.22g/mole H2O = 18.02 g/mole CO2 = 44.01 g/mole O2 = 32.00 g/mole and make sure the answer has significant figures
Answers
Answer:
0.45688mL
Explanation:
1) First you should look on the coefficients.
\(2C_8H_{18(l)}\ + 25O_2_{(g)}=\ 16CO_{2(g)}+ 18H_2O_{(g)}\)
2) Do the ratio between C8H18 and O2:
\(C_8H_{18}\ \ \ \ \ \ \ \ \ O_2\\2 : \ \ \ \ \ \ \ \ \ \ \ \ \ 25\\X: \ \ \ \ \ \ \ \ \ \ \ 0.0500moles\\2X0.0500/25= 0.004\\X=0.004 \moles\ of\ C_8H_{18}\)
3) grams= moles X molecular mass
\(0.004*114.22= 0.45688g\)
[1g=1mL] => 0.45688mL
A chemist must dilute 62.8mL of 167.μM aqueous zinc oxalate ZnC2O4 solution until the concentration falls to 57.0μM . He'll do this by adding distilled water to the solution until it reaches a certain final volume.
Answers
Answer:
184 mL.
Explanation:
The following data were obtained from the question:
Initial volume (V1) = 62.8 mL
Initial concentration (C1) = 167 μM
Final concentration (C2) = 57.0 μM
Final volume (V2) =?
To obtain the final volume of the solution, we shall apply the dilution formula as follow:
C1V1 = C2V2
167 × 62.8 = 57 × V2
10487.6 = 57 × V2
Divide both side by 57
V2 = 10487.6 / 57
V2 = 183.99 ≈ 184 mL
Therefore, chemist must add distilled water to the solution until it reaches a volume of 184 mL.
1. The type of bond most likely to
occur between Mg and Br is a(n)
bond.
---
Answers
Answer:
Ionic bond.
Explanation:
Group 7 elements like Bromine (Br) and group 2 elements like Magnesium,(Mg) involved loss and gain of electrons which is typical with Ionic bonding.
The meaning of the word symptom:
Answers
The word "symptom" refers to a specific manifestation or indication of a condition, disease, or disorder that is experienced or observed by an individual.
Symptoms are subjective or objective changes in the body's normal functioning that may be recognized as abnormal, uncomfortable, or problematic. Symptoms can manifest in various ways depending on the nature of the underlying condition. They can be physical, such as pain, rash, cough, fever, or fatigue, indicating an illness or injury affecting the body. Symptoms can also be psychological, such as anxiety, depression, or confusion, reflecting disturbances in mental health.
Symptoms serve as important clues for medical professionals to identify and diagnose diseases or disorders. They provide valuable information about the nature, severity, and progression of an illness, helping healthcare providers formulate appropriate treatment plans. Additionally, symptoms may also be important for individuals to self-assess their own health status and seek appropriate medical attention.
It is essential to note that symptoms alone may not provide a definitive diagnosis, as they can overlap across different conditions. Further evaluation, including medical tests and examinations, is often necessary to confirm a diagnosis and determine the appropriate course of action.
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Two asteroids are 75,000 m apart one has a mass of 8 x 10^7 N what is the mass of the other asteroid
Answers
The mass of the asteroid is C. 1.2 x \(10^{12}\) Kg
To find the mass of the other asteroid, we can rearrange the equation for the gravitational force between two objects:
F = (G * m1 * m2) / \(r^{2}\)
where F is the force of gravity, G is the gravitational constant, m1 and m2 are the masses of the two asteroids, and r is the distance between them.
Given that the distance between the asteroids is 75000 m, the force of gravity between them is 1.14 N, and one asteroid has a mass of 8 x \(10^{7}\) kg, we can substitute these values into the equation and solve for the mass of the other asteroid (m2):
1.14 N = (6.67430 × \(10^{-11}\) N \(m^{2}\)/\(Kg^{2}\) * 8 x \(10^{7}\) kg * \(m2\)) / \((75000 m)^{2}\)
Simplifying and solving the equation, we find that the mass of the other asteroid (m2) is approximately 1.2 x \(10^{12}\) kg. Therefore, Option C is correct.
The question was incomplete. find the full content below:
Two asteroids are 75000 m apart one has a mass of 8 x \(10^{7}\) kg if the force of gravity between them is 1.14 what is the mass of the asteroid
A. 3.4 x \(10^{11}\) kg
B. 8.3 x \(10^{12}\) kg
C. 1.2 x \(10^{12}\) kg
D. 1.2 x \(10^{10}\) kg
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What is a physical change and a chemical change
Answers
Answer:
A physical change --> is the change in appearance or form Example --> ice melting.
A chemical change --> is the change in chemical composition. Example --> rust
Additionally, physical changes can be reversible (water melting or freezing), while chemical changes can't. Rust cannot be reversed.
Why does Paul Ehrlich concede that the theory of evolution “cannot be refuted by any possible observations” and thus is “outside of empirical science”?
Answers
Evolution can not be tested by experiment given that it depends largely on observations that fit into a wider scope and point to a common conclusion.
Can evolution be proven empirically?Science is know to be empirical, In science, the evidence that backs up a claim is what establishes it as true or false. Thus all theories must be tested by experiment.
However, the theory of evolution can not be tested by experiment given that it depends largely on observations that fit into a wider scope and point to a common conclusion. In other words, evolution lies “outside of empirical science”.
The fact that it can not be directly proven empirically does not necessarily make it out to be false. That was the conclusion of Paul Ehrlich in his 1967 article.
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Which two elements are in the same period?
Onitrogen and bismuth
O silver and calcium
fluorine and chlorine
O Potassium and Bromine
Answers
Answer:
Explanation:
O Potassium and Bromine are in the same period.
The periodic table is a chart of all the known elements arranged according to their atomic structure. Elements in the same period are in the same row of the periodic table and have similar chemical properties because they have the same number of electron shells.
O Nitrogen and Bismuth are not in the same period. Nitrogen is in period 2 and bismuth is in period 6.
O Silver and Calcium are not in the same period. Silver is in period 5 and calcium is in period 4.
O Fluorine and Chlorine are in the same period. They are both in period 2.
Do you think sexual reproduction or mutations are more important to increasing biodiversity?
Answers
Answer:
Sexual Reproduction
Explanation:
With sexual reproduction biodiversity increases slightly every time that a new child is created. However mutations can be more drastic, the chances of it happening are very seldom.
the mass of a cube using the triple beam balance is 21g. the volume of the cube is 7cm cubed. what is the density of the cube? show step by step please
Answers
Answer:
3 g/cm³Explanation:
The density of a substance can be found by using the formula
\(density = \frac{mass}{volume} \\\)
From the question
mass = 21 g
volume = 7 cm³
We have
\(density = \frac{21}{7} = 3 \\ \)
We have the final answer as
3 g/cm³Hope this helps you
Answer:
3g/cm3
Explanation:
The density equation is M over V so you divide the mass by the volume. You do 21 divided by 7 and you get 3
Identify the type of reaction. Complete the equations with the correct reactants then balance each equation.
Answers
The balanced equations are Cd (g) + S\(_8\) (g) → CdS (g), K\(_2\)CO\(_3\) → K\(_2\)O + CO\(_2\). and a Na + HOH → NaOH + H\(_2\). Cd (g) + S\(_8\) (g) → CdS (g) is combination reaction.
An equation per a chemical reaction is said to be balanced if both the reactants plus the products have the same number of atoms and total charge for each component of the reaction. In other words, both sides between the reaction have an equal balance of mass and charge. The balanced equations are Cd (g) + S\(_8\) (g) → CdS (g), K\(_2\)CO\(_3\) → K\(_2\)O + CO\(_2\). and a Na + HOH → NaOH + H\(_2\).
Cd (g) + S\(_8\) (g) → CdS (g) = combination reaction
K\(_2\)CO\(_3\) → K\(_2\)O + CO\(_2\) = decomposition reaction
Na + HOH → NaOH + H\(_2\) = Hydration reaction
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Calculate the equilibrium constant Kp for this reaction, given the following information (at 295 K ):
2NO(g)+Br2(g)⇌2NOBr(g) Kc=2.1
2NO(g)⇌N2(g)+O2(g) Kc=2.3×1030
Answers
The equilibrium constant Kp for this reaction is 1.03×10^(-5) atm.
What is equilibrium constant?
The equilibrium constant, represented by K, is a quantitative measurement of the extent to which a chemical reaction has reached equilibrium. It describes the ratio of the concentrations (or partial pressures) of the products and reactants at equilibrium, with each concentration raised to a power equal to its coefficient in the balanced chemical equation.
We can use the relationship between Kp and Kc to solve this problem:
Kp = Kc(RT)^(Δn)
where R is the gas constant, T is the temperature in Kelvin, and Δn is the change in the number of moles of gas between the products and the reactants.
First, let's find Δn:
Δn = (moles of gas in products) - (moles of gas in reactants)
Δn = (2 moles) - (3 moles)
Δn = -1
Next, we can plug in the values and solve:
Kp = Kc(RT)^(-1)
Kp = (2.1)((0.0821 L·atm/mol·K)(295 K))^(-1)
Kp = 1.03×10^(-5) atm
Therefore, the equilibrium constant Kp for this reaction is 1.03×10^(-5) atm.
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A child and his mother both have blue eyes. They both have blue eyes because inherited traits of an organism are governed by the -
A. chromosomes found in the genes
B. nucleus found in the chromosomes
C. genetic material found in the nucleus
D. genes found in the cytoplasm
Answers
Answer: the answer is C hope it helps
Explanation:
Answer the following questions on your answer sheets to summarize what you have learned from this module: 1. What is the measure of the sum of the interior angles of a convex polygon with n sides? 2. What is the measure of the sum of the angles of a convex quadrilateral? A pentagon? A nonagon? 3. What is the measure of an interior angle of a regular polygon with n sides? 4. What is the measure of an interior angle of a regular octagon? 5. What is the sum of the measure of the exterior angles, one at each vertex of a convex polygon? You are now going to take the post-assessment to see how much you have learned about the topics. Write the letter of the correct answer on your answer sheets.whit it's part of your website is subject your company is looking to buy the tickets to buy the graphs for your website on top and a ate the tickets for your website on each event time position requires that you enjoyed each of these emails from this list update me with u part time job and even if the tickets email from your website is for your time job your friend in real estate request email from your ee
Answers
The measure of the sum of the interior angles of a convex polygon with n sides is given by \(S=(n-2)180\)
What is a polygon?A polygon can be defined as a two-dimensional geometric figure that consists of straight line segments and finite number of sides.
What is a quadrilateral?A quadrilateral can be defined as a type of polygon that is made up of four (4) sides, four (4) vertices, four (4) edges and four (4) angles.
Mathematically, the measure of the sum of the interior angles of a convex polygon with n sides is given by:
\(S=(n-2)180\)
In Geometry, the measure of the sum of the angles of a convex quadrilateral, pentagon, and a nonagon is equal to 360 degrees.
For a regular polygon:
Mathematically, the measure of an interior angle with n sides is given by;
\(A=(2n-4)90\)
For a regular octagon:
Mathematically, the measure of an interior angle is equal to 135 degrees.
Lastly, the sum of the measure of the exterior angles, one at each vertex of a convex polygon is equal to 360 degrees.
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Which of the following claims is a correct statement based on the data in the Reason for Earth’s Seasons activity?
Question 3 options:
The seasons are caused by the distance of the Earth from the Sun because the Earth is farther away from the Sun in the winter and closer in the summer.
The seasons are caused by the tilt of Earth’s axis and how much solar radiation each area of the Earth receives.
Answers
Answer: the second one " the seasons are caused by the tilt of earth's axis and how much solar radiation each area of earth receives. "
Explanation:
i took the test on k12.
Science...............
Answers
The answer is metals and non-metals
The elements in the periodic table can also be divided according to whether they are metals, metalloids or non-metals. The zigzag line separates all the elements that are metals from those that are non-metals
Hope this helps!
22.99 on the element sodium means the combined numbers of electrons and protons?
Answers
Answer:
The answer is 11 electron and 11 protons respectively
Explanation:
Since the sodium is in it neutral state, number of electron is the same as the number of proton, which is 11.
Answer:
Explanation:
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Homework Answered Due Today, 11:59 PM
The reaction 3H₂(g) + N₂(g) → 2NH3(g) has an enthalpy of reaction of -92.6 kJ/mol. If 1 g of hydrogen and 2 g of nitrogen are
reacted, how much heat is produced (kJ)?
Answers
The amount of heat energy produced when 1 g of hydrogen and 2 g of nitrogen are reacted, is -6.61 KJ
How do i determine the heat energy produced?First, we shall obtain the limiting reactant. Details below:
3H₂ + N₂ -> 2NH₃
Molar mass of N₂ = 28 g/molMass of N₂ from the balanced equation = 1 × 28 = 28 g Molar mass of H₂ = 2 g/molMass of H₂ from the balanced equation = 3 × 2 = 6 gFrom the balanced equation above,
28 g of N₂ reacted with 6 g of H₂
Therefore,
2 g of N₂ will react with = (2 × 6) / 28 = 0.43 g of H₂
We can see that only 0.43 g of H₂ is needed in the reaction.
Thus, the limiting reactant is N₂
Finally, we the amount of heat energy produced. Details below:
3H₂ + N₂ -> 2NH₃ ΔH = -92.6 KJ
Molar mass of N₂ = 28 g/molMass of N₂ from the balanced equation = 1 × 28 = 28 gFrom the balanced equation above,
When 28 grams of N₂ reacted, -92.6 KJ of heat energy were produced.
Therefore,
When 2 grams of N₂ will react to produce = (2 × -92.6) / 28 = -6.61 KJ
Thus the heat energy produced from the reaction is -6.61 KJ
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5. Which of the following would alter the reaction rate? (select all that are true)
Changing particle size
Adding heat
Adding a catalyst
Answers
Both changing particle size and adding a catalyst can influence the reaction rate, while adding heat specifically affects the rate by increasing the kinetic energy of the reactant particles.
The correct option are A and C.
Both changing particle size and adding a catalyst can alter the reaction rate.
Changing particle size can affect the reaction rate because it influences the surface area available for the reactant particles to interact. Smaller particle sizes result in a larger surface area, increasing the frequency of collisions between particles and accelerating the reaction. Conversely, larger particle sizes reduce the surface area, leading to fewer collision events and slower reaction rates.
Adding heat can also alter the reaction rate. Increasing the temperature provides more thermal energy to the reactant particles, causing them to move faster and collide with greater energy. This enhanced kinetic energy leads to more successful collisions and an increased reaction rate.
Adding a catalyst can significantly affect the reaction rate. A catalyst provides an alternative reaction pathway with lower activation energy, enabling the reaction to occur more easily. By lowering the energy barrier, a catalyst increases the rate of reaction without being consumed or permanently altered in the process.
The correct option are A and C.
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A small amount of chemical splashes in Frank’s eye. What should Frank do immediately?
Answers
Answer:
A small amount of chemical splashes in Frank's eye. What should happen next? Frank should go to the eyewash station while his lab partner tells the teacher what happened.
Explanation:
Brainlist
pOH of the 0.001M NaOH solution is
Answers
The pOH of the 0.001 M NaOH solution is approximately 3.
To determine the pOH of a solution, we need to know the concentration of hydroxide ions (OH-) in the solution.
In the case of a 0.001 M NaOH solution, we can assume that all of the NaOH dissociates completely in water to form Na+ and OH- ions. Therefore, the concentration of hydroxide ions in the solution is also 0.001 M.
The pOH is calculated using the equation:
pOH = -log[OH-]
Substituting the concentration of hydroxide ions, we have:
pOH = -log(0.001)
Using a calculator, we can evaluate the logarithm:
pOH ≈ 3
Therefore, the pOH of the 0.001 M NaOH solution is approximately 3.
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