Question 8 of 14 mol of Nal M al solution contains 0.405 What volume in Loa 0.724 () -0 o 6.022 x 100.7240.405 0.559 1.790.293 Nol mol Na ML 2299 148.89 126.90 559 M Nalg Nal/mol
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
please answer the question in the boxes . 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...
2:05 .. LED < Question 5 of 20 Submit How many grams of a solution that is 5.2 % sucrose by mass are needed to obtain 18 g of sucrose STARTING AMOUNT ADD FACTOR ANSWER RESET Oo o 0.0094 0.052 g sucrose 5.2 g solution 94 0.94 %m sucrose 6.022 x 1023 3.5 100 18 350 Tap here or pull up for additional resources
2:05 .. LED < Question 5 of 20 Submit How many grams of a solution that is 5.2 % sucrose by mass are needed to obtain 18 g of sucrose STARTING AMOUNT ADD FACTOR ANSWER RESET Oo o 0.0094 0.052 g sucrose 5.2 g solution 94 0.94 %m sucrose 6.022 x 1023 3.5 100 18 350 Tap here or pull up for additional resources
11:34 PM Tue May 26 425 < Question 17 of 48 Submit According to the balanced reaction below, calculate the moles of NH, that form when 4.2 mol of N,He completely reacts 3 NzH.M → NH3(g) + N (9) х STARTINO AMOUNT ANSWER RESET ADD FACTOR 42 16.8 1704 5.6 3.2 28.02 3 32.06 6.022 x 1023 mol N GN. HE ON mol NH, NH mol NH4 Tap here or pull up for additional resources
9:08 LTE Question 17 of 23 Submit How many moles of NHs form when 32.4 L of Ha gas completely reacts at STP according to the following reaction? Remember 1mol of an ideal gas has a volume of 22.4 Lat STP Na (g)3 H2(g)2 NHs(g) х STARTING AMOUNT ADD FACTOR ANSWER RESET mol Ha L NH 2 0.964 22.4 g/mol Hz 32.4 0.482 L H2 6.022 x 1023 16.4 mol NH3 2.02 17.03 g NH g/mol NH 1.45 4.34 g...
< Question 10 of 10 Submit How many moles of HCl are there in 75.0 mL of 0.485 M HCI? mol 1 4 2 5 3 6 + x 100 Tap here or pull up for additional resources
What is the number of moles of glucose (C6H12O.) in 0.500 L of a 0.40 M solution? 13 Attempts remaining: 2 What volume in L of a 0.724 M Nal solution contains 0.405 mol of Nal? 14 L Attempts remaining: 2 What volume in L of a 0.32 M Mg(NO) solution contains 45 g of Mg(NOx), ?! 15 Attempts remaining: 2
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