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Calculate the amount of heat (in kilojoules) required to convert 25.05 g of water to steam...

Calculate the amount of heat (in kilojoules) required to convert 25.05 g of water to steam at 100°C.

___ kJ

When X-rays of wavelength 0.0900 nm are diffracted by a metallic crystal, the angle of first-order diffraction (n = 1) is measured to be 18.5°. What is the distance (in pm) between the layers of atoms responsible for the diffraction?

___ pm

thank you in advance!

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