Calculate the molar enthalpy of the reaction:

0.25 moles of a substance is reacted, and the heat released produces a 4.5°C temperature increase in 325 ml of water in a coffee cup calorimeter. (Recall that the specific heat capacity of water is 4.19 J/g°C.)
A) 24,511.5 J/mol
B) 35,733.8 J/mol
C) 44,321.9 J/mol
D) 57,422.2 J/mol

1) in saturated limewater, [h+ ]=3.98x10-13 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 2) in butter, [h+ ]=6.0x10-7 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 3) in peaches, [oh]=3.16x10-11 m a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 4) during the course of the day, human saliva varies between being acidic and basic. if [oh]=3.16x10-8 m, a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? /

An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³

The molar mass of cu is 63.55 g/mol. the number of grams of cu produced in this reaction is