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Author Question: How much NaCl is needed to make 75 mL of a 12 (w/v) solution? A) 30 g B) 6.0 g C) 7.5 g D) 9.0 ... (Read 44 times)

natalie2426

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on: Aug 27, 2018
How much NaCl is needed to make 75 mL of a 12 (w/v) solution?
 
  A) 30 g
  B) 6.0 g
  C) 7.5 g
  D) 9.0 g
  E) 12 g

Question 2

What is the total length of two pieces of rubber tubing which are 7.69 cm and 4.028 cm in length? Express this answer to the correct number of significant figures.
 
  A) 11.7 cm
  B) 11.69 cm
  C) 11.718 cm
  D) 11.72 cm
  E) 12 cm


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l.stuut

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

D

Answer to Question 2

D


natalie2426

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Reply 2 on: Aug 27, 2018
Great answer, keep it coming :)

TheNamesImani

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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