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18 Nov 2019
I need the final answer only
g sample of a gas was found to occupy a volume ot 750. Calculate the molar mass of the gas. 19) A 2.04 a) 15.2 c) 20.3 b) 45.7 d) 0.100 20) reaction proceeds, the system lose T wo gases, X and Y, react to form a solid product Z. As the ÎU. Calculate 1270 J of heat and the surroundings perform 410 J of work. a) -1270 J d) 860J e)-860 J b) 1680J c) -1680 J 21) Consider the following reaction: 2 KClO3(s) â 2 KCI (') + 3 02(8) at lcglare how many grams of potassium chlorate (FW 122.6) decomposed if 638 mL of o at 128°C and 752 torr is collected. b) 1.56 g d) 3.51 g a) 0.0127 c) 0.0191g e)2.34 g 22) If 75.4 J of energy is absorbed by 0.25 mol of CCla at constant pressure, calculate the change in temperature. The specific heat of CCla is 0.861 J/g C b) 21.9 c d)9.1°C a) 17.8°C c) 2.3° e) 44.6 C 23) Compared to a hydrogen iodide molecule (HI onagpared to a bydrogen iodide molecule (II, Mw - 128), the average speed of a hydrogen molecule (H2. Mw 2) is a) 8 times slower c) 8 tir es faster e) equally fast because they are at the same temperature. b) 64 times faster ) 64 times slower 4) A gas container holds 4.00 mol of gas A, 4.50 mol of gas B, and 6.50 mol of gas C at a total pressure a) 600. torr or 7so. torr. Calculate the partial pressure of gas A in this mixture. b) 500. torr d) 267 torr 200, torr 25) Teuesite eomirum is o. sso J/gc Raising the temperature of an 23.1 g sample of aluninum, by 15.0°C requires : a30sJ 11.5S b) 403 ) 394 J e) 347 1
I need the final answer only
g sample of a gas was found to occupy a volume ot 750. Calculate the molar mass of the gas. 19) A 2.04 a) 15.2 c) 20.3 b) 45.7 d) 0.100 20) reaction proceeds, the system lose T wo gases, X and Y, react to form a solid product Z. As the ÎU. Calculate 1270 J of heat and the surroundings perform 410 J of work. a) -1270 J d) 860J e)-860 J b) 1680J c) -1680 J 21) Consider the following reaction: 2 KClO3(s) â 2 KCI (') + 3 02(8) at lcglare how many grams of potassium chlorate (FW 122.6) decomposed if 638 mL of o at 128°C and 752 torr is collected. b) 1.56 g d) 3.51 g a) 0.0127 c) 0.0191g e)2.34 g 22) If 75.4 J of energy is absorbed by 0.25 mol of CCla at constant pressure, calculate the change in temperature. The specific heat of CCla is 0.861 J/g C b) 21.9 c d)9.1°C a) 17.8°C c) 2.3° e) 44.6 C 23) Compared to a hydrogen iodide molecule (HI onagpared to a bydrogen iodide molecule (II, Mw - 128), the average speed of a hydrogen molecule (H2. Mw 2) is a) 8 times slower c) 8 tir es faster e) equally fast because they are at the same temperature. b) 64 times faster ) 64 times slower 4) A gas container holds 4.00 mol of gas A, 4.50 mol of gas B, and 6.50 mol of gas C at a total pressure a) 600. torr or 7so. torr. Calculate the partial pressure of gas A in this mixture. b) 500. torr d) 267 torr 200, torr 25) Teuesite eomirum is o. sso J/gc Raising the temperature of an 23.1 g sample of aluninum, by 15.0°C requires : a30sJ 11.5S b) 403 ) 394 J e) 347 1
Trinidad TremblayLv2
17 Feb 2019