Advertisements
Advertisements
Question
Calculate the relative molecular mass of ZnCO3.
Advertisements
Solution
Relative molecular mass of ZnCO3
= Zn + C + 3[O]
= 65 + 12 + 3[16]
= 77 + 48
= 125
APPEARS IN
RELATED QUESTIONS
Calculate the molecular mass of Cl2.
Calculate the molecular mass of C2H4.
Calculate the formula unit mass of ZnO given the atomic mass of:
- Zn = 65 u
- Na = 23 u
- K = 39 u
- C = 12 u
- O = 16 u
Calculate the molecular mass of nitric acid, HNO3. (Atomic masses : H = 1 u ; N = 14 u ; O = 16 u)
Which of the following elements has the same molecular mass as its atomic mass ?
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 weight/mass of: `10^22` atoms of carbon
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 CaSO4 [Zn = 65, S=32, O = 16, Ca = 40, C = 12]
What are ionic and molecular compounds? Give examples.
