You have to find how many moles of H2 has formed.
C+ H2O -> CO + H2
mole of carbon reacted = mass / molar mass = 34g/ 12g per mol = 2.83 mol
for every 1 mole of carbon will form 1 mole of H2
mole of hydrogen produced = 1* 2.83 = 2.83 mol
mass of hydrogen = mole * molar mass = 2.83 mol * (1*2) = 5.66g
The volume of 0.160 m Li2S solution required to completely react with 130 ml of 0.160 CO(NO3)2 is calculated as below
write the reacting equation
Co(NO3)2 + Li2S = 2LiNO3 + COS
find the moles of CO(NO3)2 = molarity x volume
= 130 ml x 0.160=20.8 moles
since the reacting moles between CO(NO3)2 to LiS is 1:1 the moles of LiS is also 20.8 moles
volume of Lis is therefore = moles of Lis/ molarity of LiS
= 20.8/0.160 = 130 Ml
HBr is the formula for hydrobromic acid
Transferring heat through electromagnetic waves
Molecules made up of two or more elements are called compounds. Water, calcium oxide, and glucose are molecules that compound.