- 3 Circle The Most Appropriate Answer 12 1 A 1 26 G Salt Mixture Of Bacl2 2h20 2442 G Mol And Na Po 12h20 380 2 1 (29.36 KiB) Viewed 18 times
(3) Circle the most appropriate answer? [12] 1) A 1.26 g salt mixture of BaCl2.2H20 (2442 g/mol) and Na PO.12H20 (380.2
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(3) Circle the most appropriate answer? [12] 1) A 1.26 g salt mixture of BaCl2.2H20 (2442 g/mol) and Na PO.12H20 (380.2
(3) Circle the most appropriate answer? [12] 1) A 1.26 g salt mixture of BaCl2.2H20 (2442 g/mol) and Na PO.12H20 (380.2 g/mol) was dissolved in 150 ml hot water. The white precipitate, Ba (PO4)2 (602 g/mol) was found to be 0.28 g. Calculate the percentage of Na3PO4.12H30 in the mixture given that g BaCl2.21.0 is the limiting reactant? (A) 72.9% (B) 79.5% (C) 12.4% (D) 84.4 % 2) A 1.38 g of Cr(SO2)2.12H20 was heated until reach a constant mass. Calculate the mass in grams of the residue KCr(s), 2 (H30 - 18.0 g/mol, KCr(S04), 283.2 g/mol) (A) 1.03 (B) 0.64 (C) 0.78 (D) 0.10 3) The net ionic equation for the reaction between NaOH and HCI is: (A) H") + OH(-) H2O (B) Na2CO3 (14) CO2(g) + H2O) (C) CO, H2O + CO2() (D) HCI () H + C' bilemiy together +2H (4) ()
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