Question 7 (5 points) (08.02 mc) what is the mass of naci required to make 140 grams of a 12% solution of nach in water? (5 points) 12 grams 14 grams oc 12 grams od 18 grams

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Oldbeamer asked Apr 1, 2023

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Question 7 (5 points)

(08.02 mc)
what is the mass of naci required to make 140 grams of a 12% solution of nach in water? (5 points)
12 grams

14 grams
oc
12 grams
od
18 grams

Chemistry
high-school

Oldbeamer asked Apr 1, 2023

by Oldbeamer

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1 Answer

11 votes

Answer: 18 g

Step-by-step explanation:

$0.12=\frac{\text{mass of NaCl}}{140}\\\text{mass of NaCl}=(0.12)(140)=16.8 \text{ g}$

The option closest to this is 18 g

Question 7 (5 points) (08.02 mc) what is the mass of naci required to make 140 grams-example-1

Espinosa answered Apr 8, 2023

by Espinosa

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