Which of the following dimensional analysis setups will correctly convert 27.76g of Li to atoms of Li?
A
B
C
D
2. Multiple Choice
3 minutes
1 pt
Which of the following dimensional analysis setups will correctly convert 4.00x1023atoms of cobalt to moles of cobalt? How many moles of colbalt are there? Show your work.
B : 0.664mol Co
A: 2.41x1047mol Co
A : 0.664ol Co
B: 2.41x1047mol Co
3. Multiple Choice
3 minutes
1 pt
Which of the following dimensional analysis setups will correctly convert 2.50 moles of sodium to grams of sodium?
A
B
C
D
4. Multiple Choice
15 minutes
1 pt
What is the molar mass of AuCl3? Show your work.
96 g
130 g
232.5 g
303.3 g
5. Multiple Choice
15 minutes
1 pt
What is the mass in grams of 5.90 mol C8H18 (molar mass = 114.232 g/mol)?
.0512 g
19.4 g
674 g
389 g
6. Multiple Choice
5 minutes
1 pt
How many moles are in 16.94g of water (molar mass = 18.02 g/mol)?