contestada

When 0.0155 mol of solid calcium oxide is dissolved in sufficient water, 418 J of energy is released. How
much energy would be released if 2.25 g of the solid was dissolved?

Respuesta :

mickymike92

2.25 g of solid calcium oxide will release 1084.1 J of heat

Moles, molar mass and mass

The moles, molar mass and mass of a substance are related by the equation:

  • Number of moles = mass/ molar mass

mass of calcium oxide = 2.25 g

molar mass of calcium oxide = 56 g

Number of moles of calcium oxide = 2.25/56

Number of moles of calcium oxide = 0.0402 moles

From the data provided:

  • 0.0155 moles of solid calcium oxide releases 418 J of heat

0.0402 moles of solid calcium oxide will release 0.0402 * 418/0.0155 J 0.0402 moles of solid calcium oxide will release 1084.1 J of heat

Therefore, 2.25 g of solid calcium oxide will release 1084.1 J of heat

Learn more about heat of reaction at: https://brainly.com/question/18565597

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