How many moles of sodium fluoride (used in water fluoridation and manufacture of insecticides) are needed...

Question

Question

How many moles of sodium fluoride (used in water fluoridation and manufacture of insecticides) are needed to form 2.84 moles of sulfur tetrafluoride?

3SCl2(l) + 4NaF(s) → SF4(g) + S2Cl2(l) + 4NaCl(s)

a. 2.13 mol

b. 0.71 mol

c. 2.84 mol

d. 11.36 mol

e. 1.42 mo

Answer 1

Answer #1

3SCl2(l) + 4NaF(s) → SF4(g) + S2Cl2(l) + 4NaCl(s)

Molecular weight of SCl2 = 102.97

Molecular weight of NaF = 41.988

Molecular weight of SF4= 108.07

4 moles of NaF produces 1 mole of SF4 then

How many moles of NaF required to produce 2.84 moles of SF4

Therefore, amount of NaF required = (2.84*4)/1 = 11.36 mole

Thus 11.36 moles of NaF is required to produce 2.84 moles of SF4

Answer 2

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