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Byju's Answer

Standard X

Chemistry

Mole Concept

Calculate the...

Question

Calculate the molar masses of following compounds
(i) $H_{2} {S O}_{4}$
(ii) $H {N O}_{3}$
(iii) $N a O H$
(iv) $H C I$
(v) ${N H}_{4} O H$
(vi) ${N H}_{2} C O {N H}_{2}$
(vii) $C_{12} H_{22} O_{4}$

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Solution

(i) Molar mass of $H_{2} S O_{4}$ = $2 + 32 + (16 \times 4)$
= $98$ $a m u$

(ii) Molar mass of $H N O_{3}$ = $1 + 14 + (16 \times 3$
= $63$ $a m u$

(iii) Molar mass of $N a O H$ = $23 + 16 + 1$
= $40$ $a m u$

(iv) Molar mass of $H C l$ = $1 + 35.5$
= $36.5$ $a m u$

(v) Molar mass of $N H_{4} O H$ = $14 + 2 + 12 + 16 + 14 + 2$
= $35$ $a m u$

(vi) Molar mass of $N H_{2} C O N H_{2}$ = $14 + 2 + 12 + 16 + 14 + 2$
= $60$ $a m u$

(vii) Molar mass of $C_{12} H_{22} O_{4}$ = $(12 \times 12) + 22 + (16 \times 4)$
= $230$ $a m u$

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Similar questions

Q. Balance the following equation by oxidation number method
i)

K_{2} {C r}_{2} O_{7} + K I + H_{2} {S O}_{4} \to K_{2} {S O}_{4} + {C r}_{2} {({S O}_{4})}_{3} + I_{2} + H_{2} O

ii)

K M n O_{4} + {N a}_{2} {S O}_{3} \to M n O_{2} + {N a}_{2} {S O}_{4} + K O H

iii)

C u + H {N O}_{3} \to C u {({N O}_{3})}_{2} + {N O}_{2} + H_{2} O

iv)

K M {n O}_{4} + H_{2} C_{2} O_{4} + H_{2} {S O}_{4} \to K_{2} {S O}_{4} + {M n S O}_{4} + {C O}_{2} + H_{2} O

What are the correct sets of Atomic masses (u) and Elements?

(i) N-14

(ii) Sulphur-34

(iii)Chlorine-36

(iv) Mg-24

(v) Cl-35.5

(vi) Oxygen-8

(vii)Na-23

Q. Assign oxidation number to the underlined elements in each of the following species.
(i)

{N a H}_{2} P - - O_{4}

(ii)

N a H S - - O_{4}

(iii)

H_{4} {P - -}_{2} O_{7}

(iv)

H_{2} {S - -}_{2} O_{7}

(v)

C a {O - -}_{2}

(vi)

N a B - - H_{4}

(vii)

K A l {({S O - -- -}_{4})}_{2} .12 H_{2} O

(viii)

C r_{2} - -- - O_{7}^{2 -}

Which of the following represent the correct Element and Symbol Pair?

(i) Cobalt –CO

(ii) Copper-Cu

(iii)Potassium- K

(iv) Calcium-C

(v) Silicon-Sl

(vi) Silver- Ag

(vii)Barium-Ba

(viii)Iron-Ir

Q. Consider the following compounds
I.

H C l

II.

H F

III.

C H_{3} C O O H

IV.

C H_{4}

C H_{3} O H

VI.

C H_{3} C O O

H -

bonding is not present in

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Calculate the molar masses of following compounds(i) H2SO4(ii)HNO3(iii) NaOH(iv) HCI(v) NH4OH(vi) NH2CONH2(vii) C12H22O4

Calculate the molar masses of following compounds
(i) $H_{2} {S O}_{4}$
(ii) $H {N O}_{3}$
(iii) $N a O H$
(iv) $H C I$
(v) ${N H}_{4} O H$
(vi) ${N H}_{2} C O {N H}_{2}$
(vii) $C_{12} H_{22} O_{4}$