How many moles of sodium metal are needed to make 3.6 moles of sodium chloride?

given the reaction: 2na + cl 2 → 2nacl

a. 3.6
b. 7.2
c. 1.8
d. 0.9
e. not enough information

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

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159