Question

Mass of required to react with 1000 mL of 1M NaOH solution is​

Answer 1

Answer:

Moles of NaOH consumed when reacted with H+=3×1.

Moles of H2SO4 present in sample=1.5.

Weight of H2SO4 in sample=1.5×98=147g.

% purity=183.75147×100=80.

Slope of curve =−xy=−33=−1 (as angle of line is more than 90).

Answer 2

✦✧✧ Answer ✧✧✦

Add 40 g (not 40 mg).