The mole concept and related calculations questions | form three Chemistry
(382) Question Category: Multiple choices Which description corresponds to a proton?
Answer / Solution A [ Relative mass = 1, charge = +1] |
(3432) Question Category: Multiple choices How many moles of oxygen are required for the complete combustion of 2.2 g of C 3 H 8 to form carbon dioxide and water?
Answer / Solution UNSOLVED |
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(3878) Question Category: Multiple choices Which of the following solutions is the most concentrated? Answer / Solution UNSOLVED |
(3882) Question Category: Mathematical Calculation 20 cm3 of a solution containing 7 g dm-3 of sodium hydroxide were exactly neutralized by 25 cm3 of 0.10 M hydrochloric acid. Calculate the concentration of sodium hydroxide in moles per dm3. Answer / Solution UNSOLVED |
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(3927) Question Category: Multiple choices A gas at 273°C under a pressure of 1600 mmHg occupies a volume of 190 cm3. What is the volume of gas at STP?
Answer / Solution UNSOLVED |
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