Question 16 of 20 Submit Calculate the mass percent by volume of 42.6 g of glucose...
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 2 3 3 5 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
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 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
Question 18 of 24 Submit What is the molar mass of an unknown gas with a density of 2.00 g/L at 1.00 atm and 25.0 °C? g/mol 4 5 +/- 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
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
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. Verizon LTE 1:25 PM 10 * 70% Question 7 of 18 Submit What is the mass in grams of NaCN in 120.0 mL of a 2.40 x 10-5 M solution? STARTING AMOUNT ADD FACTOR ANSWER RESET -O | 6.022 x 1023 120.0 1.41 x 10-4 M NaC 1000 11 2.40 x 10-5 g NaCN/ 49.01 0.001 2.88 x 10-3 mol Na 1.01 x 10-4 35.00 0.141 g Naci Tap here or pull...
6:24 < Question 5 of 10 Submit What volume in L of a 0.724 M Nal solution contains 0.405 mol of Nal STARTING AMOUNT ADD FACTOR ANSWER RESET 22.99 1.79 L 559 0.293 g Nal 148.89 mol Nal 0.405 0.724 g Nal/mol 0.559 M Nal 126.90 ml 6.022 x 1023 Tap here or pull up for additional resources
6:39 < Question 6 of 10 Submit What is the mass in grams of KBr in 0.400 of a 0.350 M solution? STARTING AMOUNT ADD FACTOR ANSWER RESET 6.022 x 1023 0.350 0.400 M KBr 39.10 0.140 g KBr 16.7 mL 119 g KBr/mol 5.47 mol KBT 136 Tap here or pull up for additional resources