Advertisements
Advertisements
प्रश्न
The equation for the burning of octane is:
\[\ce{2C6H18 + 25O2 -> 16CO2 + 18H2O}\]
If the relative molecular mass of carbon dioxide is 44, what is the mass of carbon dioxide produced by burning two moles of octane?
Advertisements
उत्तर
1 mole of carbon dioxide has molecular mass = 44
16 moles of carbon dioxide has molecular mass = 44 × 16
= 704 g
संबंधित प्रश्न
Calculate the relative molecular mass of Chloroform.
(use K = 39, Cl = 35.5, O = 16, C = 12, H = 1, Na = 23, N = 14, S= 32)
Find the total percentage of oxygen in magnesium nitrate crystal Mg(NO3)2.6H2O.
[H = 1, N = 14, O = 16, Mg = 24]
Calculate the percentage of boron (B) in borax (Na2B4O7.10H2O). [H = 1, B = 11, O = 16, Na = 23],
answer correct to 1 decimal place.
Give one word or phrase for the following:
The ratio of the mass of a certain volume of gas to the mass of an equal volume of hydrogen under the same conditions of temperature and pressure.
Give two tests of the following:
Oxygen
Explain the term:
Vapour density
Calculate the relative molecular mass of:
(NH4)2SO4
Calculate the relative molecular mass of:
CHCl3
Calculate the relative molecular mass of:
(NH4)2 Cr2O7
Calculate the volume occupied at S.T.P. by 2 moles of SO2.
