MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Molecular Mass

The compound ...

Question

The compound with the highest molecular mass is
(Atomic mass of Ca – 40 u ,C – 12 u ,O – 16 u, H – 1 u, Cl – 17 u)

A

C a C O_{3}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

CaO

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

C a (O H)_{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

C a C l_{2}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $C a C l_{2}$
Calculate the molecular mass of given compounds
$C a C O_{3}$ = 40 + 12 + 16 × 3 = 100 u
$C a O$ = 40 + 16 = 56 u
$C a (O H)_{2}$ = 40 + 2x (16 + 1) = 74 u
$C a C l_{2}$ = 40 + 35.5 × 2 = 111 u.
After calculating the molecular mass of these compounds, we can say that $C a C l_{2}$ has more molecular weight.

Suggest Corrections

thumbs-up

1

Similar questions

Q. The molecular mass of calcium oxide is

(A t o m i c m a s s o f C a = 40 u, O = 16 u)

Q. A compound contains

4.07

24.27

71.65

% chlorine. It molar mass is

98 g

. What are its empirical and molecular formulas? (Atomic mass of C=12,H=1,Cl=35)

Q. (a) Define 'formula unit' of an ionic compound. What is the formula unit of (i) sodium chloride, and (ii) magnesium chloride ?
(b) Calculate he formula masses of the following compounds :
(i) Calcium chloride
(ii) Sodium carbonate
(Given : Atomic masses : Ca = 40 u ; Cl = 35.5 u ; Na = 23 u ; C = 12 u ; O = 16 u)

Q. Find the molecular masses of the following compounds.
Sulphuric Acid

(H_{2} S O_{4})

Potassium Nitrate

(K N O_{3})

Hydrogen Sulphide

(H_{2} S)

(C O_{2})

(Atomic Masses : H = 1, S = 32, C = 12, O = 16, K = 40, N = 14)

Q. A compound contains equal masses of the elements A, B & C. If the gram atomic masses of A, B & C are 60 g, 20 g & 40 g respectively. Determine the molecular formula of the compound if the molecular mass is 720 g.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Crude Oil Part 1

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Standard IX Chemistry

Join BYJU'S Learning Program

CrossIcon