An extra-strength aspirin contains 0.500 g of aspirin. how many grains is this? (1grain=64.8mg)

Answer:

a is the answer

Explanation:

The princess loves the young man enough to choose the lady.

The princess is strongly barbaric, so she will choose the tiger this conclusion does the passage best support.

The Princess, who, like her father, is semi-barbaric, knows which door hides each creature and directs the young man to the door on the right.

He has grandiose ideas and fancies; he commands that even his most whimsical and unrealistic wishes be fulfilled, and he is burningly, gustily passionate, just like his princess.

Stockton describes the princess, the king's daughter, as intense, jealous, and powerful. In the story, the princess falls in love with a young man. He is of noble blood, but he is beneath her station, so the king summons him to the arena.

Thus, option A is correct.

To learn more about semi-barbaric in The Lady, follow the link;

https://brainly.com/question/18066132

#SPJ6

Answer: Motion, providing a burst of power that can move a specific part of the device.

Explanation: Hope this helps

Answer:

D > C > B> A

Explanation:

i solved this on study island

Answer:get a ruler and find out

Explanation:

measure from tip to tip and post a picture to see

Answer:baby carrots

Explanation:

measure with baby carr

The molar mass of ethanol is 46.069 g/mol because it has 2 mol of carbon atoms (2 12.011 g), 6 mol of hydrogen atoms (6 1.0079 g), and 1 mol of oxygen atoms (1 15.9994 g) in 1 mol.

Ethanol has a molar mass of 46 gmol-1.

Because you already know, molar mass refers to the entire mass of one molecule of a certain substance, and the basic chemical formula of ethanol is C2H5OH. So, if there are numerous atoms in a compound, we may calculate its molar mass by adding up the masses of its constituent atoms and multiplying the result by the number of atoms. We may calculate the molar mass of ethanol as 2x(molar mass of carbon) + 6x(molar mass of hydrogen) + 1x(molar mass of oxygen), or 2x12 + 6x1 + 1x16 = 24 + 16 + 6 = 46, since ethanol contains two carbon atoms, six hydrogen atoms, and one oxygen atom.

Learn more about Molar mass here:

https://brainly.com/question/22997914

#SPJ4

18 g of \(C_6H_{14\) would produce 55.2 g of \(CO_2\) by referring  to the balanced equation.

The balanced equation for the combustion of \(C_6H_{14\) with oxygen is:

\(C_6H{_14 + 9O_2\) → \(6CO_2 + 7H_2O\)

According to the equation, for every 1 mole of \(C_6H_{14\), 9 moles of O2 are required to produce 6 moles of \(CO_2\). We need to first find the number of moles of \(C_6H_{14\) in 18 g:

molar mass of \(C_6H_{14\) = 6(12.01) + 14(1.01) = 86.18 g/mol

number of moles of \(C_6H_{14\) = 18 g / 86.18 g/mol = 0.209 moles

Using the mole ratio between C6H14 and \(CO_2\) from the balanced equation, we can calculate the number of moles of \(CO_2\) produced:

0.209 moles \(C_6H_{14\) × (6 moles \(CO_2\) / 1 mole \(C_6H_{14\)) = 1.254 moles \(CO_2\)

Finally, we can use the molar mass of \(CO_2\) to convert moles to grams:

molar mass of \(CO_2\) = 12.01 + 2(16.00) = 44.01 g/mol

mass of \(CO_2\) produced = 1.254 moles \(CO_2\) × 44.01 g/mol = 55.2 g

Therefore, 18 g of C6H14 would produce 55.2 g of \(CO_2\).

Learn more about molar mass here:

https://brainly.com/question/22997914

#SPJ11

Answer:

Explanation:

Examples of compounds that contain only covalent bonds are methane (CH4), carbon monoxide (CO), and iodine monobromide (IBr). Covalent bonding between hydrogen atoms: Since each hydrogen atom has one electron, they are able to fill their outermost shells by sharing a pair of electrons through a covalent bond

The compound that is classified as covalent bond is P₂O₅

The correct answer to the question is Option C. P₂O₅

Covalent bond is a type of bond in which there is a sharing of electron(s) between the atoms involved. Compounds formed by this type of bond are called covalent compounds.

Covalent bond exist between non metals only

With the above information in mind, we can conclude that P₂O₅ is a covalent compound as both phosphorus and oxygen are non metals.

The rest options in the question contains metal and non metals.

The correct answer to the question is Option C. P₂O₅

Learn more: https://brainly.com/question/2205671

Answer:

In gas chromatography, the stationary phase refers to the material that remains stationary during the separation process, while the mobile phase refers to the gas or liquid that carries the analyte through the column.

Explanation:

Example:

Stationary Phase: Common examples of stationary phases in gas chromatography include solid materials coated on the inside of the column, such as polysiloxane or polyethylene glycol. These coatings provide different selectivity for separating analytes based on their interactions with the stationary phase.

Mobile Phase: In gas chromatography, the mobile phase is typically an inert gas, such as helium or nitrogen, which carries the analyte through the column. The choice of mobile phase depends on factors such as column compatibility and the requirements of the analysis.

Parameters that can be changed to affect the separation of peaks in gas chromatography include:

Temperature: Altering the temperature can significantly impact the separation of analytes in gas chromatography. Changing the temperature can influence the volatility, adsorption, and partitioning behavior of the analytes, leading to differences in retention times and peak separation.

Flow Rate: Adjusting the flow rate of the mobile phase can affect the elution time and peak separation. Higher flow rates may result in shorter retention times and potentially less resolved peaks, while lower flow rates can lead to longer retention times and improved separation.

Learn more about chromatography here, https://brainly.com/question/11960023

#SPJ11

Answer:

8.72 mol PbO₂

General Formulas and Concepts:

Chemistry - Atomic Structure

Explanation:

Step 1: Define

5.25 × 10²⁴ formula units PbO₂

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

\(5.25 \cdot 10^{24} \ formula \ units \ PbO_2(\frac{1 \ mol \ PbO_2}{6.022 \cdot 10^{23} \ formula \ units \ PbO_2} )\) = 8.71803 mol PbO₂

Step 4: Check

We are given 3 sig figs. Follow sig fig rules and round.

8.71803 mol PbO₂ ≈ 8.72 mol PbO₂

Answer:

A) It increases when the concentration of reactants increases.

Explanation:

When you increase the concentration, there is more of a substance, and therefore more opportunities for the reactants to collide together with enough energy to create a product.

Answer:

A) It increases when the concentration of reactants increases.

Explanation:

It's just right!!!

Calorimetry Experiment: Calorimetry is a technique used to estimate changes in enthalpy of chemical reactions. There are two types of calorimetry experiments that are given below :

1. Enthalpy changes of reactions in solution.

2. Enthalpy changes of combustion.

According to question,

The biggest source of error in calorimetry is usually temperature measurements, unwanted heat loss to the surroundings, this can be fixed by adding a lid.

Stirring error : Calorimetry is not insulated in a proper way.

Personal sources of error : It contains many error one of the important and usual error is measurement error, error in the volume or weight.

To know more about calorimetry Experiment here :

https://brainly.com/question/2240330?referrer=searchResults

#SPJ4

Answer: 1.14 × 10^20 platinum atoms

Explaination:

$1,500/oz ÷ 28.35 g/oz = $52.96/g

$0.01 ÷ $52.96/g = 0.000189 moles

use Avogadro's number (6.022 × 10^23 atoms/mole) to calculate the number of platinum atoms in 0.000189 moles:

0.000189 moles × 6.022 × 10^23 atoms/mole = 1.14 × 10^20 atoms

The high-energy phosphate bond within ATP is the source of a large amount of energy in reactions involving ATP.

The bond that is the source of a large amount of energy in reactions involving ATP is the high-energy phosphate bond. ATP, or adenosine triphosphate, is a molecule that stores and transfers energy within cells. It consists of three phosphate groups attached to an adenosine molecule. The bond between the second and third phosphate groups is a high-energy bond that can be easily broken, releasing energy.

When a cell needs energy, the ATP molecule undergoes hydrolysis, which is the process of breaking the high-energy phosphate bond. This reaction converts ATP into ADP (adenosine diphosphate) and inorganic phosphate (Pi). The release of one phosphate group results in the formation of ADP, releasing a significant amount of energy that can be used by the cell for various metabolic processes.

The hydrolysis of ATP is an exothermic reaction, meaning it releases energy. This energy is utilized by cells for various activities like muscle contraction, active transport, synthesis of macromolecules, and nerve impulse transmission. ATP acts as the energy currency of the cell, continuously being synthesized and hydrolyzed to provide the necessary energy for cellular functions.

In summary, the high-energy phosphate bond within ATP is the source of a large amount of energy in reactions involving ATP.

To know more about energy visit-

https://brainly.com/question/1932868

#SPJ11

The pz and s orbitals of the carbon atoms can mix in ethylene but cannot do so in methane due to the difference in their molecular geometries and bonding.

In ethylene (\(C_{2} H_{4}\)), the carbon atoms are \(sp^{2}\) hybridized, meaning that one s orbital and two p orbitals (px and py) combine to form three  \(sp^{2}\) hybrid orbitals.

These hybrid orbitals are responsible for forming sigma bonds with the hydrogen atoms and the other carbon atom. The remaining pz orbital, which is not involved in the hybridization, is available to form a pi bond between the two carbon atoms.
In contrast, in methane (\(CH_{4}\)), the carbon atom is  \(sp^{3}\) hybridized. In this case, the carbon atom's s orbital and all three p orbitals (px, py, and pz) combine to form four \(sp^{3}\)  hybrid orbitals. These orbitals are used to form sigma bonds with the four hydrogen atoms. Since all of the orbitals are involved in hybridization, there is no pz orbital available to mix with an s orbital.
The difference in the hybridization of carbon orbitals in ethylene and methane is due to their distinct molecular geometries and bonding arrangements.

In ethylene, the carbon atoms can mix their pz and s orbitals, while in methane, this mixing does not occur.

For more information on hybridization kindly visit to

https://brainly.com/question/14099829

#SPJ11

The heat of combustion of the acetylene is;  -1253.3 kJ/mol

The heat of combustion of acetylene (C2H2) is the amount of heat energy released when acetylene is burned in excess oxygen. The heat of combustion is a measure of the energy content of a substance and is usually expressed in units of energy per unit of substance, such as joules per mole (J/mol) or calories per gram (cal/g).

The heat of combustion is;

[2(-393.5) + (-241.6)] - [-226.7]

= -1253.3 kJ/mol

Learn more about acetylene:https://brainly.com/question/28916568

#SPJ1

Answer:

The answer is (c) Zn(No3)2

Explanation:

Because we know the cation of zinc is+2 and whereas nitrate is anion, -1.

Answer:

2, I believe.

Explanation:

In the cO2 molecule, each oxygen atom has two lone pairs of electrons. The carbon atom has no lone pairs.

Explanation:

In the cO2

molecule, each oxygen atom has two lone pairs of electrons. The carbon atom has no lone pairs. The carbon-oxygen bonds are double bonds.

Answer:

The process of photosynthesis occurs when green plants use the energy of light to convert carbon dioxide (CO2) and water (H2O) into carbohydrates. Light energy is absorbed by chlorophyll, a photosynthetic pigment of the plant, while air containing carbon dioxide and oxygen enters the plant through the leaf stomata.

Let's understand the situation

You are using an oil based paint .We know oil contains hydrocarbons means CH- bonded compound . Hydrocarbons are known as organic compounds and non polar .The thing non polar doesn't matter much but thing organic matters .

Now coming to water ,water contains OH bonding ,a lone pair is present over O which makes water polar . Although water is also known as inorganic compound.

We know that like dissolves like .In that manner Organic compounds are soluble in only organic compounds and not in inorganic compounds like water .Thus oil paint is insoluble in water as particles don't dissolve

Hence to clean the oil you need organic solvents like toulenw,spirit ,Benzyl compounds etc .

at room temperature substances hawks together by covalent bonds are typically in liquid form

At room temperature substances hawks together by covalent bonds are typically in liquid or gas form.

Covalent compounds are typically liquids or gases at room temperature, although the more complex and the larger the molecule, the greater the chance that it could exist as a solid.

Compounds that form from two or more nonmetallic elements, such as carbon and hydrogen, are called covalent compounds. In a covalent compound, atoms of the different elements are held together in molecules by covalent bonds. These are chemical bonds in which atoms share valence electrons.

Learn more about Covalent compounds here: brainly.com/question/11651796

#SPJ2

The conditions of temperature and pressure in which a sample of CO₂ (g) would behave least like an ideal gas are high temperature and high pressure; 150°C and 300 kPa, option C

An ideal gas is any gas whose molecules obey the gas law and whose behavior follows the ideal gas behavior.

The behavior of ideal gases is as follows:

For a given gas to behave as an ideal gas, it must be under conditions of extremely high temperatures and low pressure.

Learn more about ideal gases at: https://brainly.com/question/27870704

#SPJ1

Answer:

Yes.

Explanation:

Sugar is made of small fragments, mini-solids. So, yes. Matter cannot be destroyed, only converted.

Soda cans are a solid as well. It is a solid as it is not a gas, and it doesn't melt (when it's room temperature, otherwise it can at certain heats and is then considered a liquid.)

good luck :)

Wearing appropriate clothing and protective gear in a laboratory is crucial for maintaining a safe and healthy working environment. It is important to follow the guidelines and regulations set by the laboratory to ensure the safety of everyone involved in the research and experiments. By taking these precautions seriously, lab workers can minimize the risk of accidents and injuries and focus on conducting successful experiments and research.

Laboratories are places where scientific experiments and research are conducted, and they require careful handling of hazardous materials, chemicals, and equipment. It is essential to follow certain guidelines to ensure the safety of the individuals working in the lab. One of the most important guidelines is to wear appropriate clothing and protective gear.

The clothing worn in the laboratory must be comfortable, durable, and provide adequate coverage of the body. Loose-fitting clothes, jewelry, and open-toed shoes should be avoided as they can increase the risk of accidents and injuries. Lab coats or aprons should be worn to protect clothing from chemicals, spills, and splashes.

Protective gear such as gloves, safety goggles, and face shields are also necessary in a laboratory. Gloves protect hands from chemical exposure, cuts, and punctures. Safety goggles and face shields protect the eyes and face from chemical splashes, flying debris, and harmful radiation.

Additionally, it is important to tie back long hair and avoid using hair products that could ignite or react with chemicals. Lab workers should also avoid wearing contact lenses as they can trap chemicals and cause eye damage.

Wearing appropriate clothing and protective gear in a laboratory is crucial because it minimizes the risk of accidents and injuries. Chemical spills, splashes, and explosions can cause serious harm to the body, and wearing protective gear can significantly reduce the severity of these injuries. Proper attire and gear can also prevent contamination of samples, equipment, and the environment.

Here you can learn more about laboratory

https://brainly.com/question/27971838#

#SPJ11

Answer:

The main function of sensory transduction is the conversion of sensory signals to chemical signals in the nervous system. Sensory transduction occurs in the sensory receptors. In sensory transduction, the sensory neurons play an important role.

Explanation:

The mass of carbon (C) in the original 1.2359 g sample of the compound is 0.6913 g. The mass of nitrogen (N) in the original sample is 0.3566 g, and the mass of oxygen (O) is 0.2031 g.

To determine the mass of carbon in the sample, we subtract the masses of hydrogen and oxygen from the total mass of the sample:

Mass of C = Total mass of sample - Mass of H - Mass of O

Mass of C = 1.2359 g - 0.0648 g - 2.241 g (CO₂)

Mass of C = 0.6913

Regarding the analysis of nitrogen content, the mass percent of nitrogen is given as 28.84%. This percentage indicates that nitrogen accounts for 28.84% of the total mass of the compound.

To determine the mass of nitrogen in the sample, we multiply the mass percent by the total mass of the sample:

Mass of N = Mass percent of N × Total mass of sample

Mass of N = 28.84% × 1.2359 g

Mass of N = 0.3566 g

mass of Og of sample (g of H+g of C+ g of

N)

mass of O = 1.2359 (0.0648+0.6116 +0.3564)

Mass of O = 0.2031 g

learn more about mass here:

https://brainly.com/question/29590222

#SPJ4

the complete question is:

In the combustion analysis of a compound containing carbon, hydrogen, nitrogen, and oxygen, a 1.2359 g sample is burned with excess oxygen, producing 2.241 g of CO₂. The analysis also reveals 0.0648 g of hydrogen in the sample. What is the mass, in grams, of carbon, nitrogen, and oxygen in the original 1.2359 g sample? Furthermore, when the compound is solely analyzed for nitrogen content, the mass percent of nitrogen is found to be 28.84%. What is the mass, in grams, of nitrogen and oxygen in the original sample?

earth

Earth is the third inner planet and the one we know best. Of the four terrestrial planets, Earth is the largest, and the only one that currently has liquid water, which is necessary for life as we know it.

outside the solar system it is The first (known) of its kind. In a new study, a research team led by Björn Benneke, a professor at the Institute for Research on Exoplanets at the Université de Montréal, discovered water vapor and likely even raining clouds in the atmosphere of the exoplanet K2-18 b

Answer:

A. teeth

Explanation:

It contains a protien called collagen, which absorbs chemical elements from the food that an individual eats, so scientists are able to obtain information about animals diet by studying the chemical elements found in fossilised teeth.

Answer:

Teeth

Explanation:

They can see the shape of the teeth and try to figure out what they ate

Answer:

1) 8 valence electrons are a full shell that makes the atom more stable.

Explanation:

Due to the octet rule, atoms tend to form compounds in ways that give them eight valence electrons and thus give them the electron configuration of a noble gas, making them stable.

A. 3 Mg + 2 AlCl3 --> 3 MgCl2 + 2 Al would not occur as written due to the Activity Series of Metals

The Activity Series of Metals is a list of metals in order of decreasing reactivity. The most reactive metals are at the top of the list and the least reactive metals are at the bottom. The metal that is considered the least active in the Activity Series of Metals is gold. Gold is a very unreactive metal, meaning that it does not easily form compounds with other elements or react with other substances. This is why gold is often used in jewelry and other decorative items, as it does not tarnish or corrode easily. Other metals that are considered to be relatively unreactive and are also located towards the bottom of the activity series include platinum and silver.

It is worth noting that the activity series of metals is not a definitive and absolute list. It is based on a specific set of conditions, such as the presence of a certain solvent or the concentration of certain ions, and the activity of the metals may change in different environments.

Additionally, the activity series can be useful to predict the outcome of displacement reactions, in which a more active metal can displace a less active metal from a compound. For example, zinc, a more active metal than copper, can displace copper ions from a copper sulfate solution to form zinc sulfate and copper metal.

To know more about Metals visit: https://brainly.com/question/18153051

#SPJ1