What is the molecular mass of calcium carbonate?

90 u

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80 u

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100 u

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110 u

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Solution

The correct option is C $100 u$
The molecular mass of a compound is the sum of the atomic masses of its constituent atoms.
Molecular mass of calcium carbonate $({CaCO}_{3})$
$=$ Atomic mass of $Ca +$ atomic mass of $C + [3 \times$ (atomic mass of $O$ ) $]$
$= 40 + 12 + (3 \times 16)$
$= 100 u$

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Similar questions

4.5 moles of calcium carbonate are reacted with dilute hydrochloric acid.

What is the mass of 4.5 moles of calcium carbonate? (Relative molecular mass of calcium carbonate is 100).

4.5 moles of calcium carbonate are reacted with dilute hydrochloric acid.
(i) Write the equation for the reaction.
(ii) What is the mass of 4.5 moles of calcium carbonate? (Relative molecular mass of calcium carbonate is 100).
(iii) What is the volume of carbon dioxide liberated at stp?
(iv) What mass of calcium chloride is formed? (Relative molecular mass of calcium chloride is 111)
(v) How many moles of HCl are used in this reaction?

4.5 moles of calcium carbonate are reacted with dilute hydrochloric acid.

What mass of calcium chloride is formed? [Relative molecular mass of calcium chloride is 111].

Q. The molecular weight of calcium carbonate

C a C O_{3}

is:

Q. The molecular weight of calcium carbonate is

100

g/mol. The weight of carbon dioxide obtained by heating

10 g

of calcium carbonate is:

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What is the molecular mass of calcium carbonate?

The correct option is C 100 uThe molecular mass of a compound is the sum of the atomic masses of its constituent atoms. Molecular mass of calcium carbonate (CaCO3) = Atomic mass of Ca+ atomic mass of C+[3× (atomic mass of O)] =40+12+(3×16) =100 u

The correct option is C $100 u$
The molecular mass of a compound is the sum of the atomic masses of its constituent atoms.
Molecular mass of calcium carbonate $({CaCO}_{3})$
$=$ Atomic mass of $Ca +$ atomic mass of $C + [3 \times$ (atomic mass of $O$ ) $]$
$= 40 + 12 + (3 \times 16)$
$= 100 u$