The Okome

In an experiment 3.10g of a compound of carbon, hydrogen and oxygen produce 4.4g of C02 and 2.7g of water on complete combustion. Determine the empirical formula of the compound ( C=12.0, O=16.0 H=1.0)

In an experiment 3.10g of carbon, hydrogen and oxygen produced 4.4g of C02 and 2.7g of water on complete combustion. Determine the empirical formula of the compound ( C= 12, 0= 16, H =1)

on complete combustion of one mole of a certain alkane , two moles of C02 and three moles of water was produced. determine the relative molecular formula of the compound. (C= 1, O=16)

Calculate the mass of Pb(N03)2 required to make 500 cubic cm of 0.1M solution(Pb=207, N=14, O=16)

15 cubic centimeter of (CH3COOH) was dissolved in water to make 500 cubic centimeter of solution. calculate the concentration of the solution in moles per litre (C=12 H=1 O=16 density of ethanoic acid =1.05g/cm^3)

Plz Show Me How It Come About write an ionic equatio in the reaction betwee CaCO3 & HNO3

120 cm^3 of NH3 gas was prepared and collected at R.T.P. All the NH3 gas was reacted with H3PO4 according to the following reaction 3NH3(g) + H3PO4(aq)= (NH4)3 PO4(aq) calculate: 1. the number of moles of NH3 that was collected 2. the mass of (NH4)3 PO4 o...

calculate the minimum volume of hydrogen gar hn cubic centimetres required to convert 3.18 g of CuO to Cu at s.t.p. (Cu=64, O=16, H=1; molar gas volume at stp = 22.4 dm^3

Two gases A & B haue densities of 0.09 g/cm^3 and 0.16 g/cm^3 respectively. If they diffuse under the same conditions, determine their relative rates of diffusion.

Can U Please Tell Me The Difference Between Parasitism And Predation.

if 25 cm^3 of a 0.1 M na2co3 solution neutralised a solution containing h2so4, in 250 cm^3 of solution. calculate the molarity of h2so4 and the volume of the acid used.