Advertisements
Advertisements
Question
The gram molecular mass of oxygen molecule is ______.
Options
16 g
18 g
32 g
17 g
Advertisements
Solution
The gram molecular mass of the oxygen molecule is 32 g.
Explanation:
The gram molecular mass of an oxygen molecule (O2) is:
Oxygen atom (O) = 16 g/mol
Oxygen molecule (O2) = 16 × 2 = 32 g/mol
APPEARS IN
RELATED QUESTIONS
Calculate the molecular mass of H2.
Calculate the molecular masses of the following :
Carbon dioxide, CO2
(Atomic masses : H = 1 u ; O = 16 u ; Cl = 35.5 u ; N = 14 u ; C = 12 u)
Convert 12 g of oxygen gas into moles.
Calculate the molecular mass of the following:
(NH4)2CO3
Given atomic mass of Cu = 63·5, H = 1, O= 16, C = 12, N = 14, Mg = 24, S = 32
Calculate the weight/mass of an atom of oxygen.
Calculate the weight/mass of 0.25 gram atom of calcium.
From the equation
\[\ce{3Cu + 8HNO3 -> 3Cu(NO3)2 + 4H2O + 2NO}\]
(Atomic mass Cu = 64, H = 1, N = 14,O = 16)
Calculate the mass of copper needed to react with 63g of HNO3.
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].
Calcium carbonate react with dilute hydrochloric acid as given below:
\[\ce{CaCO3 + 2HCl -> CaCl2 + H2O + CO2}\]
What is the mass of 5 moles of calcium carbonate? (Relative molecular mass of calcium carbonate is 100)
A gas occupied 360 cm3 at 87°C and 380 mm Hg pressure. If the mass of gas is 0.546 g, find its relative molecular mass.
