According to the balanced chemical equation

5 h2c2o4(aq) + 2 mno4-(aq) + 6 h+(aq) → 10 co2(g) + 2 mn2+(aq) + 8 h2o(l)

0.3500 grams of oxalic acid, h2c2o4 will react with ml of 0.100 m potassium permanganate, kmno4 solution.
a) 15.5 ml
b) 38.9 ml
c) 77.7 ml
d) 97.2 ml

A) 15.5 mL

Explanation:

Given, Mass of oxalic acid = 0.3500 g

Molar mass of oxalic acid = 90.03 g/mol

The formula for the calculation of moles is shown below:

Thus,

According to the given reaction:

5 moles of oxalic acid react with 2 moles of potassium permanganate

Thus,

1 mole of oxalic acid react with 2/5 moles of potassium permanganate

0.0038876 mole of oxalic acid react with moles of potassium permanganate

Moles of potassium permanganate = 0.001555 moles

Also, considering:

Molarity = 0.100 M

So,  

Volume = 0.01555 L

Also, 1 L = 1000 mL

So, volume = 15.5 mL

samuel de champlain. in 1608, king henry iv sponsored pierre dugua, sieur de mons and samuel de champlain as founders of the city of quebec with 28 men. this was the second permanent french settlement in the colony of canada.

"the periodic table is arranged in order of atomic number."