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A 10 ampere current is passed through 500 ml NaCI solution for 965 seconds Calculate pH solution at the end of electrolysis

A chemist has one solution containing 50% acid and a second one containing 25% acid. How much of each should be used to make 10 litres of a 40% acid solution?

A solution of sodium chloride discharge 6.0 xx 10^(16)Na^(+) and 4.5 xx 10^(16)Cl^(-1) lons in 2 seconds. What is the current passing through the solution ?

100L aqueous solution of KBr is electrlysed by using current of 9.65 ampere for 10 seconds, using Pt electrode. pH of the the resulting solution in cell will be:

long piece of paper is10 cm wide and is moving uniformly along its length with a velocity of 2 cm//s . An ant starts moving on the paper from point A and moves uniformly with respect to the paper. A spider was located exactly opposite to the ant just outside the paper at point B at the instant the ant started to move on the paper. The spider, without moving itself, was able to grab the ant 5 second after it (the ant) started to move. Find the speed of ant relative to the paper.