Question 16 of 20 Submit Calculate the mass percent by volume of 42.6 g of glucose (C6H12O6, MM = 180.2 g/mol) in 3...
Question 16 of 20 Submit Calculate the mass percent by volume of 42.6 g of glucose (C6H12O6, MM = 180.2 g/mol) in 325 mL of solution. 1 4 2 5 3 6 + x 100 Tap here or pull up for additional resources
Question 15 of 20 Submit The percent by mass of methanol (MM 32.04 g/mol) in an aqueous solution is 22.3%. What is the molality of the methanol solution? 1 2 3 X 4 5 6 C 7 8 +- x 100 Tap here or pull up for additional resources
Calculate the molality of a glucose solution, C6H12O6 (molar mass=180.2 g/mol) that is prepared by mixing 234 g of glucose in 755 g water
Answer the following questions about the fermentation of glucose (C6H12O6 , molar mass 180.2 g/mol) to ethanol (C2H6O) and CO2. C6H12O6(s) → 2 C2H6O(l) + 2 CO2(g) Δ H = −16 kcal/mol glucose ethanol How many kilocalories of energy are released from 54.0 g of glucose?
Calculate the entropy change from burning 67.3 g of solid glucose (C6H12O6, molar mass 180.2 g/mol) to produce gaseous carbon dioxide and gaseous water, using the values in the table below. Substance S0 / J K-1 mol-1 Glucose(s) 209.2 O2(g) 205.15 CO2(g) 213.79 H2O(g) 188.84
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...
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
Question 11 of 20 Submit What volume (in mL) of 0.300 M HCl would be required to completely react with 5.00 g of Al in the following chemical reaction? 2 Al(s) 6 HCl(aq)2 AICI (aq) 3 H2 (g) mL 1 2 3 X 4 5 6 C 7 8 +- x 100 Tap here or pull up for additional resources
1) if 6.85 of glucose( C6H12O6, molar mass=180.2 g/mol) is dissolved in 155g of chloroform( CHCL3,molar mass= 119.4 g/mol) , what is the boiling point of the solution. ( the boiling point of pure CHCl3 is 61.2 celsius, and Kb = 3.63 celsius/m for CHCl3) 2) a,) Liquid ammonia (boiling point = -33.4C) can be used as a refrigerant and heat transfer fluid. How much energy is needed to heat 25.0 g of NH3(l) from -65.0C to -12.0C? Heat of...
Calculate the vapor pressure depression of a solution that 218 gram glucose (180.2 g/mol) is dissolved in 460 mL of water (18.01 g/mol). The temperature of the solution is 30°C. Assume the density of solution and water as 1.00 g/mL, the vapor pressure of pure water at 30°C 31.82 mm Hg.