Chapter 9 Flashcards
1
Q
How many moles of Cobalt are in 5 * 10^22 Co atoms?
A
0.830 mol Co
2
Q
How many grams of carbon are in 10.0 g of Sodium carbonate?
A
1.13 g C
3
Q
How many carbon atoms are there in 200.0 g of carbon dioxide?
A
2.8 * 10^24 atoms of C
4
Q
If a sample of carbon dioxide contains 15.2 moles of oxygen atoms, how many moles of carbon dioxide are in the sample?
A
7.6 mol carbon dioxide
5
Q
One half of a mole of atoms would contain how many atoms?
A
3.011 * 10^23 atoms
6
Q
What is the mass of 1.8 moles of chlorine gas?
A
128 g
7
Q
How many atoms are in 5,000 moles of Au?
A
3.011 * 10^27 atoms of Au
8
Q
How many grams of Cl are in 18.5 g sample of CHCl3?
A
16.5 g Cl
9
Q
How many moles are in 109 grams of iron?
A
1.95 mol Fe
