2
how
12.6
sn + 2 hf - snf a + h₂
many moles of tin (11) fluoride will be produced
grams of hydrogen fluoride react?
if

12.6 gram of HF will produced 0.315 moles of SnF₂

Explanation:

Given data:

Mass of HF = 12.6 g

Moles of Tin fluoride produced = ?

Solution:

Chemical equation:

Sn + 2HF   →   SnF₂ + H₂

Number of moles of HF:

Number of moles = mass/ molar mass

Number of moles = 12.6 g/20.01 g/mol

Number of moles = 0.63 mol

Now we will compare the moles of HF with SnF₂.

                           HF            :               SnF₂

                            2             :                 1

                          0.63         :             1/2×0.63 = 0.315 mol

So 12.6 gram of HF will produced 0.315 moles of SnF₂.

vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.

just did the assignment and the answer was #1 +2 n