The rate of effusion of unknown gas was measured and found to be 34.9mL/min. Under the same conditions, the rate of effusion of o, was found to be 24.6mL/min. Calculate the molar mass of the unknown gas (in g/mol). Select one: . 54.2 b. 15.9 . 37.9 d. 43.9 Citric acid, C,H,0,, is found in many fruits How many H atoms are contained in 0.1g of citric acid Select one: 21 . 2.51 10 21 b. 2.19 x 10 23 c. 6.02 x 10 21 d. 1.88 x 10 In the following reaction, what ions, if any, are spectators ions? AgNO, + KI AgI + 2KNO, Select one: . NO (aq)' 3(aq) b. Ag NO (aq)' 3(aq) C. Ag (aq)' (aq) I, + d. K Ag (aq)' (aq) . I (aq)' - (aq)