Calculate the volume of carbon (IV)oxide measured at s.t.p, produced when 1 kg of potassium…
Calculate the volume of carbon (IV)oxide measured at s.t.p, produced when 1 kg of potassium hydrogen trioxocarbonate (IV)…
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30cm(^3) of oxygen at 10 atmospheres pressure is placed in a 20 cm(^3) container. Calculate…
30cm(^3) of oxygen at 10 atmospheres pressure is placed in a 20 cm(^3) container. Calculate the new pressure…
In two separate experiments, 0.36g and 0.71g of chlorine combined with a metal X to…
In two separate experiments, 0.36g and 0.71g of chlorine combined with a metal X to give Y and…
An iron ore is known to contain 70.0% Fe2O3. The obtain from 80kg of the…
An iron ore is known to contain 70.0% Fe2O3. The obtain from 80kg of the ore is? (Fe…
Which of the following are mixtures? i, Petroleum ii, Rubber latex iii. Vulcanizer’s solution iv,…
Which of the following are mixtures? i, Petroleum ii, Rubber latex iii. Vulcanizer’s solution iv, Carbon (II)sulphide A.…
Which of the following can be obtained by fractional distillation?
Which of the following can be obtained by fractional distillation? A. Nitrogen from liquid air B. Sodium chloride…
0.1 faraday of electricity deposited 2.95 g of nickel during electrolysis of an aqueous solution….
0.1 faraday of electricity deposited 2.95 g of nickel during electrolysis of an aqueous solution. Calculate the number…
What volume of 11.0 M hydrochloric acid must be dilute to obtain 1 dm3 of…
What volume of 11.0 M hydrochloric acid must be dilute to obtain 1 dm3 of 0.05 M acid?…
If 10.8 g of silver is deposited in a silver coulometer volume of oxygen liberated…
If 10.8 g of silver is deposited in a silver coulometer volume of oxygen liberated is? A. 0.56…
What is the concentration of H+ ions in moles per dm3 of a sodium of…
What is the concentration of H+ ions in moles per dm3 of a sodium of pH 4.398? A.…