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

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

Which type of substance ionizes partially and gives off hydrogen ions when dissolved in water? a. strong acid b. strong base c. weak acid d. weak base

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign