734 g of Li2SO4 is dissolved in a 2510 mL solution. What is the concentration of the solution? Report your answer with the correct number of significant figures.

2.66 M

Explanation:

The molecular mass of Li2SO4 is 109.94 g/mol

Calculate moles:

734 g109.94 g/mol=6.68 mol

Calculate molarity:

M= 6.68 mol / 2.51 L

= 2.66 M

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.