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Author Question: An analysis showed a sample to contain 0.00471 grams of lead. How many micrograms is this? A) ... (Read 40 times)

clmills979

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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


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sultana.d

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Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

B


clmills979

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Reply 2 on: Aug 27, 2018
Gracias!

FergA

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Reply 3 on: Yesterday
Excellent

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