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

Title: Two samples of potassium iodide are decomposed into their constituent elements. The first sample ...
Post by: dakota nelson on Nov 18, 2019

Question 1

Two samples of calcium fluoride are decomposed into their constituent elements. The first sample produced 0.154 g of calcium and 0.146 g of fluorine. If the second sample produced 294 mg of fluorine, how many grams of calcium were formed?
◦ 3.13 g
◦ 2.80 × 102 g
◦ 0.310 g
◦ 0.280 g
◦ 3.09 × 102 g

Question 2

Two samples of potassium iodide are decomposed into their constituent elements. The first sample produced 13.0 g of potassium and 42.3 g of iodine. If the second sample produced 24.4 kg of potassium, how many kilograms of iodine were produced?
◦ 92.4 kg
◦ 79.2 kg
◦ 44.4 kg
◦ 13.3 kg
◦ 22.5 kg

Title: Two samples of potassium iodide are decomposed into their constituent elements. The first sample ...
Post by: strudel15 on Nov 18, 2019

Answer 1

0.310 g

Answer 2

79.2 kg