Advertisements
Advertisements
Question
Calculate the molecular mass of C2H6.
Advertisements
Solution
Molecular mass of C2H6 = 2 × Atomic mass of C + 6 × Atomic mass of H
= (2 × 12 + 6 × 1) u
= (24 + 6) u
= 30 u
APPEARS IN
RELATED QUESTIONS
Calculate the molecular mass of CH3OH.
Calculate the formula unit mass of Na2O given the atomic mass of
- Zn = 65 u
- Na = 23 u
- K = 39 u
- C = 12 u
- O = 16 u
Calculate the molecular masses of the following compounds :
Ethene, C2H4
(Atomic masses : C = 12 u ; H = 1 u)
Calculate the molecular masses of the following compounds :
Ethyne, C2H2
(Atomic masses : C = 12 u ; H = 1 u)
Calculate the molecular mass of the following:
Na2SO4.10H2O
Given atomic mass of Cu = 63·5, H = 1, O = 16, C = 12, N = 14, Mg = 24, S = 32
Fill in the blank with the correct word from the options given below:
Relative molecular mass of an element/compound is the number of times one ________ of the substance is heavier than −1/12that the mass of an atom of carbon [C12].
Calculate the relative molecular mass of ZnCO3.
Calcium carbonate is decomposed on heating in the following reaction
CaCO3 → CaO + CO2
How many moles of CO2 are there in this equation?
What are ionic and molecular compounds? Give examples.
Calcium carbonate react with dilute hydrochloric acid as given below:
\[\ce{CaCO3 + 2HCl -> CaCl2 + H2O + CO2}\]
What is the volume of carbon dioxide liberated at S.T.P. at the same time?
