0.84 g of metal carbonate reacts completely with 40 ml of H2SO4. What is equivalent weight of the metal-
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Find the Oxidation Number of S in H2SO4
We know that Hydrogen H has +1 charge and Oxygen O has -2 charge. Since H2SO4 molecule is neutral so the charges will be balanced by Sulfur S Now balancing the equation gives 2...
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Which gas is produced when dilute hydrochloric acid is added to a reactive metal? Write the chemical reaction when iron reacts with dilute H2SO4.
When reactive metals react with dilute hydrochloric acids, gives a salt and hydrogen gas Metal + Dilute acid → Salt + Hydrogen Reaction between Iron and H2SO4: Fe + H2SO4 → FeSO4 +...
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In the standardisation of N2S2O3 using K2Cr2O7 by iodometry, the equivalent weight of K2Cr2O7 is
Answer: The following reaction occur between S2O3^(2-) and Cr2O7^(2-) : 26H+ + 3S2 O3^(2-) + 4Cr2O7^(2-) → 6SO3^(2-) + 8Cr3+ + 13H2O Change in oxidation number of Cr2O4^(2-) per formula unit is...
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In the standardisation of N2S2O3 using K2Cr2O7 by iodometry, the equivalent weight of K2Cr2O7 is
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Calculate the molecular mass of H2SO4.
Molecular Mass of H2SO4 = 2 × 1 + 32 + 4 × 16 = 2 + 32 + 64 = 98u
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What will be the conjugate bases for the Brönsted acids: HF, H2SO4 and HCO3?
The table below lists the conjugate bases for the given Bronsted acids. Bronsted acid Conjugate base HF F- H2SO4 HSO4 HCO3- ...
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In the preparation of H2SO4 by contact process, why is SO3 not absorbed directly in water to form H2SO4 ?
Because it forms a dense fog of sulphuric acid which does not condense easily.
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A body of weight w1 is suspended from the ceiling of a room through a chain of weight w2The ceiling pulls the chain by a force
Correct option (c) Explanation: The ceiling pulls the chain with a force equal to the sum of weights of chain and the body. So the pulling force = (w1 + w2)
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The weight of an empty balloon on a spring balance is W_1. The weight becomes W_2 when the balloon is filled with air.
(a) W2 = W1. (c) W2 < W1+ W. EXPLANATION: The weight of the empty balloon is W₁. The weight of the balloon filled with air should be W₁+w but the balloon is...
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A wire can sustain the weight of 20 kg before breaking. If the wire is cut into two equal parts, each part can sustain a weight of
The correct answer is (b) 20 kg Explanation: The breaking stress in each part of the wire will be the same as the original because of the same material. Since the area...
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