## How many moles are in CH3CH2OH?

Answer and Explanation:

There are 0.087 moles of ethanol, CH3CH2OH, in a 4.00-gram sample of ethanol. The molar mass of the ethanol molecule is 46.07 grams per mole.

## How many moles are in 3.00 g of ethanol CH3CH2OH?

Answer and Explanation:

There are 0.065 moles in a 3.00-gram sample of ethanol, CH3 CH2 OH. The molar mass of ethanol with this chemical formula is 46.07 grams.

## How many grams are in 1 mole of ethanol?

The molecular mass of a molecule is measured in g/mol. In this case, ethanol’s molecular mass is 46 g/mol. This means that in 1 mol of ethanol, there are 46 g, thus the term molecular mass and molar mass are often used interchangeably. The same is true of a mole.

## How do you calculate moles of ethanol?

- Ethanol 46 g/mol.
- Water 18 g/mol.
- Calculate moles of ethanol: 14.6 grams x 1 mol / 46 grams = 0.317 moles.
- Calculate moles of water: 53.6 grams x 1 mol / 18 grams = 2.98 moles.
- Mole fraction = moles of component / total moles in solution.
- = 0.317 / (0.317 + 2.98) = 0.0963.
- Sulfuric acid 101 g/mol.

## How many moles are in 50 g of water?

1 Answer. There are 3 moles of O in 50 g.

## How many moles are in 5 mg of aspartame?

Answer and Explanation: Mass of aspartame = 5 mg = 0.005 grams. Also, molar mass of aspartame = 294.3 grams. Now, moles of aspartame = {eq}frac{mass}{molar Mass of aspartame = 5 mg = 0.005 grams.

…

What is the empirical formula for aspartame?

CAS Reg. No. | 22839-47-0 |
---|---|

Empirical formula | C14H18N2O5 |

Molar mass | 294.31 g/mol |

## How many iron II ions are in feso4?

There are 7.93 x 1023 Fe 2+ or Fe (II) ions in 20.0 g FeSO4.

## What is the mass of 9.86 * x10 24 molecules of CO2?

What is the mass of 9.86×1024 9.86 × 10 24 molecules of CO2 C O 2 ? The molar mass of CO2 C O 2 is 44.01 g/mol.

## What is the average mass in grams of one Zn atom?

From left to right (top row): 65.4 g zinc, 12.0 g carbon, 24.3 g magnesium, and 63.5 g copper.

## What is the formula of ethanol?

C2H5OH

## How do I calculate moles?

Use the molecular formula to find the molar mass; to obtain the number of moles, divide the mass of compound by the molar mass of the compound expressed in grams.

## How many moles of ethanol are present in the sample?

2.173 moles of ethanol are present in a 100.0 g sample of ethanol. Explanation: The ‘amount of substance’ that contains as ‘many particles’ as there are atoms in exactly ’12 g of Carbon’- 12 isotope is called one mole.

## What is the molarity of 100% ethanol?

Setting up a ratio and solving for the unknown number of moles identifies 0.68 moles of ethanol per 1 liter of solution. This results in a molarity of 0.68 mol/L, or 0.68 M.

## What is the mole fraction of ethanol in the solution?

You also know that the mole fraction of ethanol, which is defined as the ratio between the number of moles of ethanol and the total number of moles present in the solution, is equal to 0.25 .

## What is the concentration of 95 ethanol?

1) 95% (95.6%) ethanol

This is the highest concentration of ethanol you can get by distillation, because 95.6% ethanol is an azeotrope, which means the vapor state has the same ethanol:water ratio as the liquid state.