Question 18 of 24 Submit What is the molar mass of an unknown gas with a...
Question 39 of 42 Submit A particular vitamin's chemical formula has one cobalt atom. What is the molar mass of the vitamin if it contains 4.34% cobalt? g/mol 3 X 7 8 9 +/- x 100 Tap here or pull up for additional resources Question 40 of 42 Submit What is the mass percent of water in zinc(II) nitrate hexahydrate? % 2 X 8 9 +/- x 100 Tap here or pull up for additional resources Question 41 of 42...
What is the molar mass of an unknown gas with a density of 2.50 g/L at 1.00 atm and 25.0 °C?
Question 14 of 23 Submit How many liters of fluorine gas are needed to form 605 L of sulfur hexafluoride gas if the following reaction takes place at 2.00 atm and 273.15 K: S(s) 3F2(g)SFe (g)? х 1 2 3 6 с 7 8 +- x 100 Tap here or pull up for additional resources
Question 9 of 23 Submit How many moles of chlorine gas at 120. °C and 33.3 atm would occupy a vessel of 33.0 L? mol 1 2 3 +/- 0 x 100 Tap here or pull up for additional resources
What is the molar mass of a gas that has a density of 2.62 g/L at 2.00 atm and 25.0 degree C? 2.69 g/mol 64.0 g/mol 28.0 g/mol 32.0 g/mol 16.0 g/mol What volume is occupied by 1.00 mol of an ideal gas at 1.00 atm and 0.00degreeC? 27.2 L 15.0 L 22.4 L 22.7 L 22.1 L
Question 4 of 6 Submit A mixture of two gases with a total pressure of 2.00 atm contains 0.70 atm of Gas A. What is the partial pressure of Gas B? atm 1 2 3 x 100 Tap here or pull up for additional resources
Question 3 of 5 Submit Determine the mass, in grams, of 0.495 moles of Pb (1 mol of Pb has a mass of 207.2 g). 128.464 g | 1 2 3 X 7 +/- x 100 Tap here or pull up for additional resources
33.0 psi in KPa Question 21 of 22 Submit The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine 1583 L of nitrogen gas and 4595 L of hydrogen gas at STP, heat the mixture to run the reaction, then separate the ammonia from the reaction mixture. What volume of reactant, measured at STP, is left over? 2 3 4 5 +/- 0 x 100 Tap here or pull up for additional resources We were unable to...
Question 22 of 22 Submit Solid sodium reacts with liquid water to form hydrogen gas according to the equation 2 Na(s) + 2H2O(I) > 2 NaOH(aq) + H2(g) What is the pressure of hydrogen gas in the 20.0 L headspace of a reactor vessel when 1.00 kg sodium is reacted with excess water at 50.0°C? atm 2 3 x 4 6 8 7 +/- 9 0 x 100 Tap here or pull up for additional resources
An unknown gas at 75.1 ∘C and 1.00 atm has a molar mass of 30.07 g/mol. Assuming ideal behavior, what is the density of the gas? density: ______ g/L