Asked by Samantha

Is there a chemistry teacher for jiskha? Or someone that knows what my teacher is talking about? :’(

He wants me to:

Calculate the number of moles of CO2 in 63.0g of CO2
Answered by DrBob222
I am a retired university prof.
mols = grams/molar mass = ? = 63/44 = ?
Answered by Samantha
Co2= 63/44=1 19/44.... did I solve the (?) correctly? I feel as if I didn’t.
Answered by DrBob222
Yes and no.
If I put 63/44 into my calculator I get 1.48. As a fraction, 63/44 is exactly what you have. 1 19/44 fraction notation is 1.48 in decimal notation. So you didn't do anything wrong. However, USUALLY, we use decimal notation. Use your calculator to do that. Thanks for using Jiskha.
Answered by Samantha
Oh okay thank you and sorry. I have 2 types of apps for calculating things. One helps do fractions and the other puts it in decimal form. But thank you for explaining where I went wrong.
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