Author Question: An analysis showed a sample to contain 0.00471 grams of lead. How many micrograms is this? A) ... (Read 78 times)

clmills979 · **on:** Aug 27, 2018

An analysis showed a sample to contain 0.00471 grams of lead. How many micrograms is this?

A) 0.471 g
B) 4.71 103 g
C) 4.71 106 g
D) 4.71 10-2 g
E) 4.71 10-6 g

Question 2

What is the molarity of a solution prepared by dissolving 3.50 mol NaCl in enough water to make 1.50 L of solution?

A) 0.429 M
B) 2.33 M
C) 5.25 M
D) 87.8 M
E) 137 M