Q3) Circle the most appropriate answer? [12] 1) A 1.26 g salt mixture of BaCl2H30 (244.2 g/mol) and Na PO.12H20 (380.2 g

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Q3 Circle The Most Appropriate Answer 12 1 A 1 26 G Salt Mixture Of Bacl2h30 244 2 G Mol And Na Po 12h20 380 2 G 1 (36.67 KiB) Viewed 19 times

Q3) Circle the most appropriate answer? [12] 1) A 1.26 g salt mixture of BaCl2H30 (244.2 g/mol) and Na PO.12H20 (380.2 g/mol) was dissolved in 150 ml hot water. The white precipitate, Bay(PO) (602 g/mol) was found to be 0.28 g. Calculate the percentage of NagPO..12H20 in the mixture given that BaCl2.2H, is the limiting reactant? (A) 72.9% (B) 79.5% (C) 12.4% (D) 84.4% 2) A 1.38 g of Cr(SO.).12H20 was heated until reach a constant mass. Calculate the mass in grams of the residue KCr(SO4)3 ? (H,0 - 18.0 g/mol, KCr(SO4)2 - 283.2 g/mol) (A) 1.03 (B) 0.64 (C) 0.78 (D) 0.10 H () 3) The net ionic equation for the reaction between NaOH and HCl is: (Α) Η' (1) + OH(-) - H20 (B) Na CO3(aq) CO2 + H2O (C) CO, + 2H ( H2O + CO2(e) (D) HCl (a) +CI 4) Which of the following pair of solutions will form precipitate while mix together? (A) KNO, and Na2CO, (B) NaCl and Fe(NO3), (C) AgNO, and NaNO; (D) Na2SO, and Ba(NO3)2