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Science Clinic => Chemistry => Topic started by: clmills979 on Nov 18, 2019

Title: How many S ions are contained in 99.6 mg of Na2SO3? The molar mass of Na2SO3 is 126.05 g mol-1.
Post by: clmills979 on Nov 18, 2019

Question 1

How many sodium ions are contained in 99.6 mg of Na2SO3? The molar mass of Na2SO3 is 126.05 g mol-1.
◦ 2.10 × 1021 sodium ions
◦ 1.52 × 1027 sodium ions
◦ 4.76 × 1020 sodium ions
◦ 9.52 × 1020 sodium ions
◦ 1.05 × 1021 sodium ions

Question 2

How many S ions are contained in 99.6 mg of Na2SO3? The molar mass of Na2SO3 is 126.05 g mol-1.
◦ 2.10 × 1021 S ions
◦ 1.52 × 1027 S ions
◦ 9.52 × 1020 S ions
◦ 1.05 × 1021 S ions
◦ 4.76 × 1020 S ions

Title: How many S ions are contained in 99.6 mg of Na2SO3? The molar mass of Na2SO3 is 126.05 g mol-1.
Post by: duke02 on Nov 18, 2019

Answer 1

9.52 × 1020 sodium ions

Answer 2

4.76 × 1020 S ions