# How many moles are in each of the following 15 5 g SiO2?

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## How many moles are in 15.5 g SiO2?

15.5 g : The molar mass of SiO2 is 60.1 g/mol. Use the molar mass (as the conversion unit) to determine the number of moles. So the number of moles is 0.258 mol.

## How many moles are there in 15.0 grams?

The numeric value of this constant is 6.022×1023. – Now, we can find the number of moles by the formula of moles that is given mass of the substance divided by the molar mass of the substance. – Hence, we can conclude that there are 17.28×1023 moles in 15 grams of lithium.

## How many moles are in 15g of O2?

So the answer would be (23.584-22.347)grams divided by 16.000 g/mol, or 7.7313×10^-2 moles O2.

## How many moles of O2 are in SiO2?

The formula tells us the proportions of the things in a compound. In this case, each mole of SiO2 is made up of 1 mole of Si and 2 mole of O .

## How do you find the molar mass of SiO2?

Silicon dioxide (SiO2 ) has the following atoms with the following atomic masses:

1. Si = 28 g/mol or amu.
2. O = 16 g. mol or amu.

## How many moles are present in 15 g of lithium?

There are 2.2 moles of Li in 15 grams of Li.