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The answer is 31.9988. We assume you are converting between grams O2 and mole. You can view more details on each measurement unit: molecular weight of O2 or mol The SI base unit for amount of substance is the mole.

## How many moles is 28 grams?

The molecular weight of a material is required to tell an individual how many grams there are in one mole of that chemical substance i.e. molecular weight of any substance contains 1 mole of that substance. Then 28 g of $C{{O}_{2}}$ contains = 0.636 moles of $C{{O}_{2}}$.

## How many moles are in 28 grams of c02?

Mol in 28 g CO2 = 28 g / 44 g/mol = 0.64 mol – 2 significant digits. Shailendra K.c. Hence, there are 0.637 mole in 28gm of CO2.

## How many moles is 32 grams of O2?

One mole of oxygen gas, which has the formula O_{2}, has a mass of 32 g and contains 6.02 X 10^{23} molecules of oxygen but 12.04 X 10^{23} (2 X 6.02 X 10^{23}) atoms, because each molecule of oxygen contains two oxygen atoms.

## How do I calculate moles?

How to find moles?

- Measure the weight of your substance.
- Use a periodic table to find its atomic or molecular mass.
- Divide the weight by the atomic or molecular mass.
- Check your results with Omni Calculator.

## What is the mass of 2.50 moles of oxygen gas o2?

=2.5×16= 40g. `

## How many moles are there in 50.0 g of o2?

To calculate the weight of an element in grams to moles, we should know the molar mass of an element. For example, 50 grams of oxygen is equal to 3 moles.

## How many moles of o2 are in 48 g o2?

48 g of individual oxygen atoms = 3 moles of oxygen atoms.

## How many moles are in Fe2O3?

The Mr value of Fe2O3 is equal to 2(56) + 3(16) = 160. We get that the number of moles of Fe2O3 is equal to 30/160 = 3/16 moles. Since for every mole of Fe2O3 there are 2 moles of Fe present, there are 3/16 * 2 = 3/8 moles of Fe present in 30g of Fe2O3.

## How many oxygen molecules are in 3.36 liters of oxygen gas?

One mole of any substance contains 6.022×10^{23} atoms/molecules. Answer: 9.033×10^{22} oxygen molecules are in 3.36 L of oxygen gas at STP.

## How many moles are in 16g of oxygen?

Here, it is given that: 16 g of oxygen contains 1 mole of oxygen atoms. In simple terms we can say that: mass of 1 mole oxygen atom (W) = 16 g / mol.

## How many moles of O2 are present in 24 g of O2?

of moles × atomic mass = 2 × 12 = 24 g. Question 3. Calculate the number of oxygen atoms in 1 mole of O2. Solution — 1 molecule of O2 = 2 oxygen atoms So, 1 mole of O2 = 2 mole oxygen atoms = 2 × 6.022 × 1023 = 12.044 ×1023 oxygen atoms.

## How many moles are in 32g of oxygen gas O2 molar mass of 16g mol?

The formula mass/Mr= Number of moles can be used here. So, we have a mass of 32 grams. We can also use the periodic table to determine that the Mr of oxygen is 16. So there are 2 moles of Oxygen present.