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Question 19 Answer saved Points out of 100 p Flag question Using the "Table of acids w Kas and pKas" in the exam 2 material folder, answer the following question. I have a 1.203 M solution of nitrous acid, along with a 1.203 M solution of nitric acid. The H,0* concentration in the HNO, (aq) is that in the HNO3(aq). a. 0.0219 times O b. 0.0182 times O the same as O d. 0.831 times O e. 54.8 times C.

Question 21 Not yet answered Points out of 1.00 p Flag question The heat capacity of ice is 2.108 J/g C. If I take a 9.671 g sample of Moderna vaccine that is kept in a freezer at -65.5 degrees C, and warm it up until it becomes liquid vaccine at 21.7 degrees C, how many Joules of energy does it take to do this? HINT: assume the vaccine is 100% water. a. 4565.43 Joules O b.5443.48 Joules O c. 4108.17 Joules O d. 878.06 Joules O e. 2213-37 Joules

Question 22 Not yet answered Points out of 100 p Flag question Using the "solubility from mcmurry" chart in the exam 2 folder, answer the following question. I have 119.3 grams of KBr, and combine it, in a beaker, with water at a temperature of 60.0 degrees C. This KBr will just dissolve when I have added grams of water. ins a. 138.72 b. 153.98 O c. 102.60 O d. 91.19 O e. 161.06