Chemical Forums
Chemistry Forums for Students => High School Chemistry Forum => Topic started by: BrooklynsMVP on April 05, 2009, 07:59:47 PM
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1.) what is the mass in grams of 4.25 mol of (NH4) 2CO3?
2.) How many grams of oxygen are presented in 0.50 mol of ozone, O3?
3.)How many grams of oxygen are presented in 88.0 g of CO2?
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Do you know the relationship between moles and grams?
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YEA A LITTLE ALL I NEED IS THE ANSWERS FOR THESE QUES, THATS ALL.
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We don't just give out answers. You need to show some attempts, we help guide you to the answer.
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LOL.. WOW SO PLEASE EXPLAIN ME HOW DO I GET THE ANSWER.
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For #1, what is the molar mass of (NH4)2CO3?
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IT IS 96.0861
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If I have 5 marbles in a bucket, how many marbles do I have in 4.25 buckets?
If there are 96.0861 grams in a mole, how many grams do you have in 4.25 moles?
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i multiplied 96 by 4.25 and i got 408 is that correct?
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Yup! But I would possibly include 96.09, or 96.086, and make your answer more accurate.
So, now #2:
How many moles of oxygen are there are in 1 mole of O3?
How many moles of oxygen are there in 0.5 moles of O3?
Now, solve the same way, use that answer and the molar mass of oxygen to find the mass.