(iii) Find the total percentage of oxygen in magnesium nitrate crystals: Mg(NO 3)2.6H 2O. Join now. Magnesium nitrate has a high affinity towards water. (H = 1 , N = 14 , O = 16 , Mg = 24) Q6. iii. Magnesium atoms are heavier than oxygen atoms, so we expect more than 50% of magnesium in the weight composition. 6H2O Atom percent gives the percentage (contribution) of one atom species in the total number of atomic species present i.e. Magnesium oxide has formula MgO (that is, #Mg_1O_1#). Therefore, 1 mole of magnesium nitrate has a mass of 148.3148g. Ask your question. Magnesium dinitrate reacts with alkali metal hydroxide to produce the following: Mg(NO 3) 2 + 2 NaOH → Mg(OH) 2 + 2 NaNO 3. [2] (ii) The mass of 5.6 dm 3 of a certain gas at STP is 12.0 g. Calculate the relative molecular mass of the gas. 6H2O. Magnesium nitrate Reactions. asked Feb 28, 2019 in Chemistry by Anjal (76.7k points) mole concept; stoichiometry; ... Find the total percentage of oxygen in magnesium nitrate crystals : Mg(NO3 )2 . (H = 1 , N = 14 , O = 16 , Mg = 24) Question 1 [5] (f) You are given the three white powders calcium carbonate, lead carbonate and zinc carbonate. ,What is the other substance, if any, that remains in the resultant mixture? Find the total percentage of oxygen in magnesium nitrate crystals : Mg(NO3 )2 . Find the total percentage of oxygen in magnesium nitrate crystals: Mg(NO3)2.6H2O. Using the same principle, 1 mole of oxygen, nitrogen, and magnesium all have masses equal to their molar mass. Write the simplest ionic equation, including state symbols, for any reaction that Describe the tests you would carry out in solution to identify the metal in each of the above compounds. Calculate the volume of ammonia produced. Log in. Find the total percentage of Magnesium in magnesium nitrate crystals, Mg(NO3)2. asked Feb 28, 2019 in Chemistry by Anjal (76.7k points) mole concept; stoichiometry; icse; class-10; 0 votes. 6H2O. If the relative molecular mass of ammonium nitrate is 80, calculate the percentage of nitrogen and oxygen in ammonium nitrate. [2] (iii) Find the total percentage of Magnesium in magnesium nitrate crystals, Mg(NO 3) 2.6H 2 0. (Total 7 marks) Q6. This means that in every sample of this substance there is the same number of Oxygen and Magnesium atoms.. From the periodic table we see that the atomic masses are 24.3 (Mg) and 16.0 (O). The percentage of oxygen in it is . Calculate the total percentage of oxygen in magnesium nitrate crystals - 3222942 1. Log in. You are given the three white powders calcium carbonate, lead carbonate and zinc carbonate. 1. Click here👆to get an answer to your question ️ A quantity of 0.2 g of an organic compound on combustion yielded 0.147 g CO2 and 0.12 g water. ... 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