The ratio of the molar amounts of `H_(2)S` needed to precipitate the metal ions from 20 mL each 1 M Cd `(NO_(3))_(2)` and 0.5 M `CuSO_(4)` is

Question

The ratio of the molar amounts of `H_(2)S` needed to precipitate the metal ions from 20 mL each 1 M Cd `(NO_(3))_(2)` and 0.5 M `CuSO_(4)` is

The ratio of the molar amounts of `H_(2)S` needed to precipitate the metal ions from 20 mL each 1 M Cd `(NO_(3))_(2)` and 0.5 M `CuSO_(4)` is
A. `1:1`
B. `2:1`
C. `1:2`
D. indefinite

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

The reaction takes place in two steps as `(i) NO_(2) Cl _((g)) overset(K_(1)) to NO_(2(g)) +Cl_((g))` `(ii ) NO_(2) Cl_((g)) +Cl_((g)) overset(K_(2))

2 Answers 5 Views

1.25 g of a metal (M) reacts with oxygen completely to produce 1.68 g of metal oxide. The empirical formula of the metal oxide is [molar mass of M and

2 Answers 5 Views

If three faradyas of electricity is passed through the solutions of `AgNO_(3),CuSO_(4)` and `AuCl_(3)`. The molar ratio of the cations deposited at th

2 Answers 5 Views

The reaction between yttrium metal Y and dilute hydrochloric acid produce `H_(2)`(g) and `Y^(3+)` ions. The molar ratio of yttrium used to hydrogen pr

2 Answers 4 Views

A solution of `M(NO_(3))_(2)`was electrolysed by passing a current of 2.5 A and 3.06 g of the metal was deposited in 35 minutes. Determine the molar m

2 Answers 4 Views

Calculate limiting molar conductivity of `CaSO_(4)` given that limiting molar conductivity of calcium and sulphate ions are 119.0 and `160.0" S "cm^(2

2 Answers 5 Views

For a reaction carried at 400 K, `NO_(2)(g) + CO_(2)(g) to CO_(2)(g) + NO_(2)(g)`, the proposed mechanism is as follows: `NO_(2) + NO_(2) overset("Slo

2 Answers 4 Views

For the reaction: `2NO_(2)(g) + F_(2)(g) to NO_(2)F +F` (slow) ii) `NO_(2) + F to NO_(2)F + F` (fast) What is the predicted rate law?

2 Answers 7 Views

`100` gm of anhydrous `CuSO_(4)`, when dissolved in excess of water produces `42` kJ of heat. The same amount of `CuSO_(4).5H_(2)O` on dissolving in l

2 Answers 4 Views

Statement-1:White crystalline precipitate of silver sulphite dissolves if sulphite ions are added in excess. Statement-2:Sulphite ions decolourise the

2 Answers 4 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Correct Answer - B
`underset(1mol)(Cd(NH_(3))_(2))+underset(1mol)(H_(2)S)to CdS + H_(2)SO_(4)`
`underset(1mol)(CuSO_(4))+underset(1mol)(H_(2)S)to CuS + H_(2)SO_(4)`
20 mL of 1 M `Cd(NH_(3))_(2)`
`= ((20)/(1000)L)xx(1molL^(-1))`
`=0.02 mol`
`:. H_(2)S` required = 0.02 mol
20 mL of `0.5 M CuSO_(4)`
`= ((20)/(1000)L)xx(0.5molL^(-1))`
`=0.01 mol`
`:. H_(2)S` required = 0.01 mol
`:.` Ratio of `H_(2)S` required is 2:1