(Solved): chem 1-7 Mole 1. What is the molar mass of Ba(OH), ? a 1713 grams b. 155.3 grama e 154.3 grams d300 ...

Mole 1. What is the molar mass of Ba(OH), ? a 1713 grams b. 155.3 grama e 154.3 grams d300 grams 2. How many moles of hellum is repres .86X10 moles b14 moles 228 mole 020 moles 3. How many mesin 72.0 gramofo 04.07 molecules 64.12 10 mo 10 mole How 4:10 300g @ How many les of methanol CHCH 100 moles 30.0 moles 0.922 moles 34.71 me 6. Calculate the percent composition of each element in the compound Ma a. 72.24 % Mg: 27.76%N b. 27.76% Mg 72.24 % N c5363% Mg: 40.37 % N d. 46. 37% Mg 53.63% N 7. A sample of compound X has a mass of 13.55 g has the following composition: 15.0% nitrogen, 55.0% carbon, and 30.0% oxygen. a. 2.03 g b. 7.459 c. 14.01 g d. 28.02 g 54 $ 4 888 F4 Academic Chemistry 2nd Semester 2822 57 grams of hal 663 of gunose, CHO C *5 % ?? de A T A 6 10 molecules of mithuani What is the mass of nitrogen in this com DD 8: & 7 Y U .00 8 8 = ( 9 C