. 12. A solution was made by dissolving 7.5g of impure sodium hydroxide pellets in water and making it to
250cm3 of solution. If 20cm3 of this solution is neutralized exactly by 13cm² of 1M of hydrochloric acid
,calculate the percentage purity of sodium hydroxide (Na=23,0=16,H=1)
Nault
NO: Man
250
-Het
2371631
malar mas
Naalt-40
n = 7:5
V=250 250
0.25 Tood
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PAVEMENT PUBLISHERS 2020
7.5
0.25
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the answer is   b suffix addition

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explanation:

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