How many miles are there in 44g of CO2? How many molecules is this?
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Sarah Keily
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Assuming you mean moles rather than miles To calculate moles we use the equation moles=mass/Mr We have been given the mass in the question, and we can calculate the Mr from the molecule formula of CO2. The atomic mass of carbon is 12 and for oxygen is it 16. Therefore, the Mr of CO2 is 12+16*2=44 Going back to our equation, we can now see that we have everything to calculate the moles. Therefore, substituting in the numbers we now have gives us 44/44. This = 1, and so we can see that we have one mole of CO2 in 44g
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