Find the mass of oxygen contained in 1 kg of Potassium nitrate KNO 3A- 475-5 gB- 485-5 gC- 475-2 gD- 485-2 g

The correct option is C 475.2 g Molar mass of KNO3 = 39+14+48=101 ...

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Byju's Answer

Standard IX

Chemistry

Molar Mass

Find the mass...

Question

Find the mass of oxygen contained in 1 kg of Potassium nitrate (KNO₃)

475.5 g

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485.5 g

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475.2 g

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485.2 g

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Solution

The correct option is C
475.2 g

Molar mass of KNO₃ = 39+14+48=101

% of O in KNO₃= $\frac{48}{101} \times 1000$

so, mass of Oxygen in 1000 g

= 0.4752 x 100 = 475.2 g

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Similar questions

Find the mass of oxygen contained in 1 kg of Potassium nitrate (KNO₃)

Q. The mass of oxygen contained in

1

kg of potassium nitrate

(K {N O}_{3})

will be-

Q. Potassium nitrate fertilizer contains .......... of nitrogen.

Why potassium nitrate is not used for laboratory preparation of oxygen?

Potassium nitrate on strong heating decomposes as under:
2KNO₃ $\overset{∆}{\to}$ 2KNO₂+ O₂
Calculate:
(i) weight of potassium nitrite formed.
(ii) weight of oxygen formed when 5.05 g of potassium nitrate decomposes completely.
(K = 39, O = 16, N = 14)

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Find the mass of oxygen contained in 1 kg of Potassium nitrate (KNO3)

The correct option is C 475.2 g Molar mass of KNO3 = 39+14+48=101 % of O in KNO3 = 48101×1000 so, mass of Oxygen in 1000 g = 0.4752 x 100 = 475.2 g

Find the mass of oxygen contained in 1 kg of Potassium nitrate (KNO₃)

The correct option is C
475.2 g

Molar mass of KNO₃ = 39+14+48=101

% of O in KNO₃= $\frac{48}{101} \times 1000$

so, mass of Oxygen in 1000 g

= 0.4752 x 100 = 475.2 g