Author Question: How many kL does a 1.25 108 cL sample contain? A) 1.25 103 kL B) 1.25 1013 kL C) 1.25 104 ... (Read 48 times)

leo leo · **on:** Aug 27, 2018

How many kL does a 1.25 108 cL sample contain?

A) 1.25 103 kL
B) 1.25 1013 kL
C) 1.25 104 kL
D) 1.25 1012 kL
E) 1.25 102 kL

Question 2

How many millimoles of Ca(NO3)2 contain 4.78 1022 formula units of Ca(NO3)2? The molar mass of Ca(NO3)2 is 164.10 g/mol.

A) 12.6 mmol Ca(NO3)2
B) 13.0 mmol Ca(NO3)2
C) 20.7 mmol Ca(NO3)2
D) 79.4 mmol Ca(NO3)2
E) 57.0 mmol Ca(NO3)2