Question

Find the molecular mass of (a) Sugar (6) Water.
be Find the number of moles present in 17 grams of sodium chloride.
2:6 Demonstrate an experiment to showe : Effect of temperature on change of​

Answer 1

Answer:

Here you go ..............

Explanation:

(a)

   1.  Molecular mass of sugar (sucrose) = 342g/mol

  2.  Molecular mass of water = 18g/mol

(b)

  Molecular weight of sodium chloride(NaCl) = 58.5

Number of moles of a substance = given weight / molecular weight

Given weight of NaCl = 17g

Number of moles of NaCl in 17g of NaCl = 17/58.5 = 0.29

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