Chemistry Chapter 2 Extra Problems

Chemistry Chapter 2 Extra Problems - Chapter Two Extra...

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Chapter Two Extra Practice Problems 1. Predict the ionic compound formed from the ions of the following elements or polyatomic ions. a. Zn and the sulfate ion b. Ca and the phosphate ion c. Na and S d. Mg and N e. Li and P 2. Name each of the compounds formed in Question 1. 3. Name each of the following compounds. a. NaCH 3 COO b. FeBr 2 c. K 2 S d. RbI e. Na 3 N f. Fe(NO 3 ) 2 g. Al 2 O 3 h. Cs 2 CO 3 i. CuSO 3 j. Cu 2 SO 4 4. Write the correct chemical formula for each of the following compounds. a. Calcium sulfide b. Lithium nitride c. Potassium fluoride d. Cesium selenide e. Magnesium phosphide f. Aluminum chloride g. Copper(I) chloride h. Copper(II) iodide i. Iron(II) sulfite j. Iron(III) carbonate 5. Calculate the molar mass of compounds a-f in Question 3. 6. Calculate the number of: a. Moles of NO 2 in 1.77 g of NO 2 b. Moles of CH 4 in 720. g of CH 4 c. Moles of Mg 2+ ions in 3.785 mol Mg 3 (PO 4 ) 2 d. Moles of Mg 2+ ions in 37.85g Mg 3 (PO 4 ) 2 e. Moles of NH 4 + ions in 7.51 mol (NH 4 ) 2 CO 3 f. Moles of NH 4 + ions in 7.51g (NH 4 ) 2 CO 3
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7. Calculate the percent composition (for each element) of C
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Unformatted text preview: 10 H 14 O. 8. Determine the empirical formula and the molecular formula for a compound with the following experimentally determined percent composition: 71.65% Cl 24.27% C 4.07% H 9. A white powder was analyzed and found to contain 43.64% P and 56.36% O by mass. The compound has a molar mass of 283.88 g/mol. What are the empirical and molecular formulas of the compound? 10. Calculate the mass of 500. atoms of iron. 11. How many Fe atoms are in 500.0 g of iron? 12. How many grams of compound are present in 5.00 mol of each of the following compound? a. NH 3 b. N 2 H 4 c. (NH 4 ) 2 Cr 2 O 7 13. How many grams of nitrogen are present in 5.00 mol of each of the compounds in Question 12? 14. What mass of BF 3 contains 1.5 x 10 16 F atoms? 15. What mass of calcium nitrate contains 10.0 mg of N? 16. What mass of Pb(NO 3 ) 2 is present in a 500.0 g sample of 87.5% pure Pb(NO 3 ) 2 ?...
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