What is the number of moles of kf ina 29 g sample of the compound

0.5 moles KF

Mass of the compound = 29 g KF(Potassium chloride)

We need to get the moles of KF

Moles are given by dividing the mass of a compound by its molar mass.

In this case,

Molar mass of potassium chloride = 58.0967 g/mol

Therefore;

Moles = 29 g ÷ 58.0967 g/mol

          = 0.5 moles

Therefore, 29 g of KF contains 0.5 moles

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.

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