A bottle filled with 215 g of water was left in a hot car all day. If the water was 15°C in the morning and 50° C at the end of the day, how much heat was absorbed by the water? (The specific heat of
water is 4.18 J/gºC) (q = MCAT)

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.