Chemistry
Ordinary chlorine gas has two isotopes 3517Cl and 3717Cl in the ratio of 3:1. Calculate the relative atomic mass of chlorine.
Related Questions
How much calcium oxide is obtained by heating 82 g of calcium nitrate? Also find the volume of NO2 evolved:
2Ca(NO3)2 ⟶ 2CaO + 4NO2 + O2
The equation for the burning of octane is:
2C8H18 + 25O2 ⟶ 16CO2 + 18H2O
(i) How many moles of carbon dioxide are produced when one mole of octane burns?
(ii) What volume at S.T.P. is occupied by the number of moles determined in (i)?
(iii) If the relative molecular mass of carbon dioxide is 44, what is the mass of carbon dioxide produced by burning two moles of octane?
(iv) What is the empirical formula of octane?
Silicon (Si = 28) forms a compound with chlorine (Cl = 35.5) in which 5.6 g of silicon combines with 21.3 g of chlorine. Calculate the empirical formula of the compound.