1. (a) Describe how 500 cm' of 0.1 moldm-' H2SO4 could be prepared from 100 cm of 2 moldm stock solution of the acid.
(b) (i) State the effect of aqueous solution of the following salts on litmus paper.
(a) NaNO3
(B) CH3COONa
() Al2(SO4)3
Give a reason for each answer in (b) above
2. Give a reason for each of the following laboratory practices:
(i) KMnO4 solution is not acidified with HNO3 before titration
(ii) FeSO4 solution is usually prepared fresh when needed
(iii) Alkali are not stored in glass stopped reagent bottles.

It's too short. Write at least 20 characters to explain it well.

Explanation:It's too short. Write at least 20 characters to explain it well.

It's too short. Write at least 20 characters to explain it well.

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short. Write at least 20 characters to explain it well.

aracters to explain it well.

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.