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## How many moles are in 45 g?

45 grams silver X (1 mole / 107.87 grams) = 0.417 moles.

## How do you find how many moles are in a sample?

To find the number of moles in a sample, simply weigh it and divide the weight by the molecular weight. The quotient is equal to the number of moles.

## How many grams of Cu are in 43.2 g of CuSO4?

A sample of CuSO4⋅5H2O contains 3. 782g of Cu. How many grams of oxygen are in this sample? (Cu=63.

## How many moles are in 23.4 g?

23.4g 39.997g mol=0.585 moles .

## How many grams is a mole?

The mass of one mole of a substance is equal to that substance’s molecular weight. For example, the mean molecular weight of water is 18.015 atomic mass units (amu), so one mole of water weight 18.015 grams.

## How many moles are in CuSO4?

1 Answer. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles CuSO4, or 159.6086 grams.

## How many grams are in CuSO4?

159.6 g/mol .

## What is the mole formula?

If you know the particles, moles, or grams of a substance, you can calculate the other two measurements by using the following equation: 1 mole = 6.022 × 1023 particles/mol = formula weight expressed in grams. … The mass of one mole (6.02 X 1023) of chromium atoms is 51.9961 grams.

## How do I calculate molar concentration?

To calculate the Molar Concentration, we will find the molar concentration by dividing the moles by liters of water used in the solution. For example, the acetic acid here is completely dissolved in 1.25 L of water. Then divide 0.1665 moles by 1.25 L to get the molar concentration, which will be 0.1332 M.

## How many moles of electrons weigh 1kg?

Or, 1 kg will contain = $dfrac{1}{{9.108 times 6.022}} times {10^8}$ moles of electrons. Thus, $dfrac{1}{{9.108 times 6.022}} times {10^8}$ moles of electrons will weigh one kilogram. So, the correct answer is “Option D”.

## How do you find the moles of CuSO4?

Number of moles in 24.9 g of CuSO4. 5H2O: number of moles = mass / molar mass = 24.9 / 249.72 = 0.100 mol. Note that the question gave the mass as 24.9 g – three significant figures.

## How many moles are present?

The mole is a measure or the base unit for the amount of substance present in the given sample. 1 mole is number which is equal to 6.022 x 10^{23} particles, also known as the Avogadro’s constant. These particles can be any type of species, e.g atoms, molecules, electrons, protons, neutron etc.

## What is the molarity of CuSO4?

Correct molarity is 0.5143 M for the cupric sulfate. The question part (c) dilution uses 0.005 liters of 0.5143 moles per liter copper sulfate and becomes according to description, a volume of 0.075 liters. You can now compute the new “moles per liter” or molarity.