please rate
2:05 .. LED < Question 5 of 20 Submit How many grams of a solution that...
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
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
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
2:06 LTED Question 10 of 20 Submit How many liters of a 0.209 MKI solution is needed to completely react with 2.43 g of Cu(NO3)2 according to the balanced chemical reaction: 2 2 Cu(NO3)2(aq) + Cul(aq) + 12(s) + 4 4 Kl(aq) → KNO3(aq) STARTING AMOUNT ADD FACTOR ANSWER RESET 2.43 2 0.124 6.022 x 1023 187.57 0.00542 0.0310 0.0620 0.209 166 4 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...
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...
how many mmHg are in 100.6 kpa < Question 1 of 23 Submit How many mmHg are in 100.6 kPa? mmHg 1 2 3 +/- o x100 Tap here or pull up for additional resources
9:08 LTE Question 18 of 23 Submit How many milliliters of Co gas would be produced by the complete reaction of 2.40g of Cat STP according to the following reaction? Remember 1 mol of an ideal gas has a volume of 22.4 L at STP C(s) + H2O(g) → CO(g) + H2(g) STARTING AMOUNT ADD FACTOR ANSWER 4.48 8.92 g/mol có mL CO 22.4 4480 molc 1920 mol CO 0.001 2.40 LCO 28.01 1000 gCO 6.022 x 1023 gC 12.01...
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
Question 16 of 23 Submit How many grams of Al were reacted with excess HCl if 4.56 L of hydrogen gas were collected at STP in the following reaction? 2 Al(s) + 6 HCl(aq) → 2 AICI: (aq) + 3 H2(g) (1 2 3 +/- 0 x 100 Tap here or pull up for additional resources