Respuesta :

adefioyelaoye

Answer:

C. 0.50 mol

Explanation:

Number of mole= mass /molar mass

Mass of KF is given as 29g

The molar mass of KF= 39+19= 58g/mol

No of mole= mass/ molar mass

= 29g/58g/mol

1/2 mol= 0.5 mol

sebassandin

Answer:

C) 0.50 mol

Explanation:

Hello,

In this case, we study this mole-mass relationship by using the molar mass of potassium fluoride (KF) which is 58.1 g/mol to compute the required number of moles in the 29-g sample as shown below:

[tex]n_{KF}=29gKF*\frac{1molKF}{58.1gKF} \\\\n_{KF}=0.50molKF[/tex]

Therefore answer is C) 0.50 mol.

Best regards.

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