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Determine the mass of zinc sulphide, ZnS, which are produced when 6.2 g of zinc and...
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question #2
2. Determine the number of atoms in .467g of sulphuric acid, H2SO4. (6 marks) 3. a) The percentage composition of acetic acid is found to be 39.9% carbon, 6.7% hydrogen, and 53.4% oxygen. Determine the empirical formula of acetic acid. (2 marks)
An acid with molar mass 116.08 g/mol contains by mass, 41.4 %0, 3.47 %H, and 55.1 % Determine the molecular formula (must find empirical formula first). How many oxygens are in the molecular formula? Include the number only. Hydrogen chloride is prepared using the reaction: NaCl(aq) + H2SO4(aq) → _HCl(9) + _Na2SO4(aq) What is the limiting reagent if 4.00 g H2S04 (98.09) is reacted with 393 moles NaCl (58.44) You must balance the equation first.
1. Determine the empirical formula of a compound in which the combustion of 5.048 g of a sample of the compound of C, H, and O gave 7.406 g of CO2 and 3.027 g of H2O. If a molecular mass of 150.60 g/mol is given, find the molecular formual. 2. Given the reaction: CH6O3 +C4HgO3 CgHgO¢ + CH3COOH Salicylic acid + Acetic anhydride Aspirin + Acetic acid In a certain, aspirin synthesis, 102.2 g of salicylic acid and 100.9 g...
1). Determine the thickness of a piece of platinum foil that has a mass of 2.000 g, and has length and width of 9.85 cm and 5.20 cm, respectively. Note that the density of platinum is 21.45 g/cm3 . 2). A 100.06-g piece of tungsten metal is dropped into a graduated cylinder containing water. If the water level in the graduated cylinder is observed to increase from 14.5 mL to 19.7 mL, what is the density of tungsten? 3.) What...