Answer:
4.
Given:
mass of solute= 1.50g of NaCl
mass of solution= 1.50g+50.0g = 51.5
% by mass = (unknown)
Solution:
mass percent = 1.50g of NaCl/51.5g
*100%
= 0.0291 or 2.91%
5.
GIVEN:
mass of solute= 40.0g of ethyl alcohol
mass of solution= 40.0+ 90.0g= 130g
SOLUTION:
mass percent = 40.0g /130g *100%
= 0.3077 or 30.77%
Explanation:
correct me if wrong
#carryonlearning
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Answers & Comments
Answer:
4.
Given:
mass of solute= 1.50g of NaCl
mass of solution= 1.50g+50.0g = 51.5
% by mass = (unknown)
Solution:
mass percent = 1.50g of NaCl/51.5g
*100%
= 0.0291 or 2.91%
5.
GIVEN:
mass of solute= 40.0g of ethyl alcohol
mass of solution= 40.0+ 90.0g= 130g
% by mass = (unknown)
SOLUTION:
mass percent = 40.0g /130g *100%
= 0.3077 or 30.77%
Explanation:
correct me if wrong
#carryonlearning