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Standard XII

Chemistry

Polarisability and Fajan's Rule

35. a) Calciu...

Question

35. a) Calcium carbonate reacts with aqueous HCl according to the reaction: }{ CaCO_3(s)+2HCl(aq)→ CaCl_2(aq)+CO_2(g)+H_2O(l)} . What mass of CaCO3 is required to react completely with 25ml of 0.75M HCl } b) }1.0g of a mixture of }CaCO_3 and }MgCO_3 gave }240cm^3 of }CO_2 at STP. Calculate the percentage } composition of the mixture.

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Q. Calcium carbonate reacts with aqueous

H C l

according to the reaction:

C a C O_{3} (s) + 2 H C l (a q) \to C a C l_{2} (a q) + C O_{2} (g) + H_{2} O (l)

What mass of

C a C O_{3}

is required to react completely with

25

ml of

0.75

H C l

Calcium carbonate reacts with aqueous HCl to give CaCl₂ and CO₂ according to the reaction, CaCO₃₍_s₎ + 2 HCl₍_aq₎ → CaCl₂₍_aq₎ + CO₂₍_g) + H₂O₍_l₎

What mass of CaCO₃ is required to react completely with 25 mL of 0.75 M HCl?

Calcium carbonate reacts with aqueous $HCl$ to give ${CaCl}_{2}$ and ${CO}_{2}$ according to the reaction given below

$\underset{Calcium Carbonate}{{CaCO}_{3} (s)} + \underset{Hydrochloric acid}{2 HCl (aq)} ⟶ \underset{Calcium Chloride}{{CaCl}_{2} (aq)} + \underset{Carbon dioxide}{{CO}_{2} (g)} + \underset{Water}{H_{2} O (l)}$

What mass of ${CaCO}_{3}$ is required to react completely with 25 mL of 0.75 M HCl?

1) 0.6844

2) 0.9375

3) 0.4265

4) 0.2785

Q. Calcium carbonate reacts with aqueous

H C I

to give

C a C l_{2}

and

{C O}_{2}

according to the reactions:

C a {C O}_{3 (s)} + 2 H C l_{(a q)} \to C a {C l}_{2 (a q)} + {C O}_{2 (g)} + H_{2} O

What mass of

C a C O_{3}

is required to completely react with

25 m L

0.75 M H C l

Q. Calcium carbonate reacts with aqueous

H C l

to give

C a C l_{2} and C O_{2}

according to the raction,

C a C O_{3} (s) + 2 H C l (a q) \to C a C l_{2} (a q) + C O_{2} (g) + H_{2} O (l)

.
The mass of

C a C O_{3}

is required to react compelety with

25

mL

0.75 M

HCI

is:

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