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Jenniekimrubyjane11go
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II. Calculate the percent by mass/ volume. Show your solution.

11. What is the percent by mass of NaHCO3, in a solution containing 20g NaHCO3 dissolved in 600 g of water?

Solution:
Given:
Answer Find:​

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Answer:

The percent by mass of NaHCO3 is 3.23%.

Explanation:

Given: mass of solute = 20g

mass of solvent = 600g

Find: Percent by mass of solute

Solution:

mass of solution = 20g + 600g = 620g

[tex]\% = \frac{mass \: ofsolute}{mass \: of \: solution} \times 100 \\ \% = \frac{20g}{620g} \times 100 \\ \% = {0.0323} \times 100 \\ \% = 3.23[/tex]

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Answer:

#"Approx. 3%"#

Explanation:

We simply work out the quotient:

#"Mass of sodium bicarbonate"/"Mass of sodium bicarbonate solution"xx100%=#

#(20*g)/(20*g+600*g)xx100%=3.2%(m/m)#.

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