Advertisements
Advertisements
Question
Which of the following elements has the same molecular mass as its atomic mass ?
Options
nitrogen
neon
oxygen
chlorine
Advertisements
Solution
Neon
Neon’s molecular mass is equivalent to its atomic mass.
APPEARS IN
RELATED QUESTIONS
Calculate the molecular mass of O2.
The molecular formula of glucose is C6H12O6. Calculate its molecular mass. (Atomic masses : C = 12 u ; H = 1 u ; O = 16 u)
Calculate the molecular masses of the following :
- Hydrogen, H2
(Atomic masses : H = 1 u ; O = 16 u ; Cl = 35.5 u ; N = 14 u ; C = 12 u)
Calculate the formula masses of the following compounds :
Sodium oxide, Na2O
Calculate the formula masses of the following compounds :
Calcium carbonate
From the equation:
\[\ce{C + 2H2SO4 -> CO2 + 2H2O + 2SO2}\]
Calculate the mass of carbon oxidized by 49 g of sulphuric acid (C = 12, relative molecular mass of sulphuric acid = 98)
Calculate the molecular mass of the following:
Mg3N2
Given atomic mass of Cu = 63·5, H = 1, O = 16, C = 12, N = 14, Mg = 24, S = 32
Choose the correct answer from the options given below.
In water, the hydrogen-to-oxygen mass ratio is
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.
What is the SI prefix for each of the following multiples and submultiples of a unit?
- 103
- 10–1
- 10–2
- 10–6
- 10–9
- 10–12
