Questions and answers by

Afolabi Tomilola

Questions (5)

A ray of light passes from air through a rectangular block of glass with parallel faces 4.5cm apart at an angle of incidence of
1. 1 answer
2. 205 views
Calculate the relative molecular mass ofNaNO3
1. 5 answers
2. 139 views
Hydrogen contains 7.7% by mass of hydrogen and 92.3% by mass of carbon. The relative molecular mass of carbon is 78. Derive the
1. 7 answers
2. 211 views
Calculate the volume of hydrogen liberated (Zn=63,1 mole of any gas at STP= 22.4dm3)
1. 1 answer
2. 122 views
If 2g of zinc reacted with excess hydrogen chloride acid
1. 1 answer
2. 199 views

Calculate the relative molecular mass of Pb(NO3)2
Calculate the relative molecular mass of CuSO4.5H20
Calculate the mole ratio of acid to base in the reaction expressing your answer as a whole number ratio of one
Calculate the molar mass of A if 1.83gdm-3 of A is used

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