4 points AB7. Predict: Based on the graph of the solubility of potassium nitrate,
how many grams of potassium nitrate do you think will dissolve in 100 ml
of water at 40 °C? (round to the nearest whole number)
180
160
140
120
Solubility (g/100 mL)
.888888888
100
80
60
40
20
0
10 20
80
90
100
30 40 50 60 70
Temperature (°C)

Adilute aqueous potassium nitrate solution is

Which of the following is most likely true about water in chemical solutions?

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]