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3. The total volume of seawater is 1.5 x 102¹ L. Assume that seawater contains 3.1% NaCl by mass (this means that there are 3.1 g NaCl in 100 g solution) and that its density is 1.03 g/mL, calculate the total mass of NaCl in the seawater in kilograms. Note that 1 kg = 1000 g.

3. The total volume of seawater is 1.5 x 102¹ L. Assume that seawater contains 3.1% NaCl by mass (this means that there are 3.1 g NaCl in 100 g solution) and that its density is 1.03 g/mL, calculate the total mass of NaCl in the seawater in kilograms. Note that 1 kg = 1000 g.

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter1: Chemistry And Measurement
Section: Chapter Questions
Problem 1.161QP: A solution is prepared by dissolving table salt, sodium chloride, in water at room temperature. a...
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3. The total volume of seawater is 1.5 x 1021 L. Assume that seawater contains 3.1% NaCl by mass (this means that there are 3.1 g NaCl in 100 g solution) and that its density is 1.03 g/mL, calculate the total mass of NaCl in the seawater in kilograms. Note that 1 kg = 1000 g. 4. Copy the table and fill in the blanks with the appropriate values, symbols and the like: (Note: You can use a periodic table to locate the element.) 5. 6. 7. 8. SYMBOL protons neutrons electrons net charge Which of the following are: (a) SO₂ (b) Sg 5 6 5 Write only the letter of your choice. (c) Cs (d) N₂O5 56 26 A. Molecules but not compounds B. Compounds but not molecules C. Both compounds and molecules Which of the following has more atoms? A. 1.10 g of hydrogen (H) atoms B. 14.7 g of chromium (Cr) atoms 2+ Fe CHEM01-(09-101P) Problem Set No. 1 (e) (f) 0₂ o o Which of the following has a greater mass? A. 2.0 atoms of lead B. 5.1 x 1023 mole lithium 16 18 - 3 79 117 79 (g) CH4 (h) KBr 86 136 0 Write the letter of your choice and support your answer with computations. No solution, no credit. (i) P4 (₁) LiF Calculate the number of C, H and O atoms in 1.50 g of glucose, C6H12O6. There should be 3 answers. page 2 Write the letter of your choice and support your answer with computations. No solution, no credit. 9. Stannous fluoride (SnF₂) is often added to toothpaste as an ingredient to prevent tooth decay. What is the mass of fluorine (in grams) in 24.6 g of the compound? 10. Determine the mass percent composition of each element in calcium silicate CaSiO3. 11. A compound is found to contain 23.3% magnesium, 30.7% sulfur, and 46.0% oxygen. What is the empirical formula of this compound? 12. The complete combustion of acetylene (C₂H₂) is described by the following reaction: CzHz + Oz → CO2 + H2O A. Balance the above equation with the lowest set of whole numbers. B. If 2.35g C₂H₂ is burned with enough oxygen, how many grams of CO₂ will be formed?
Transcribed Image Text:3. The total volume of seawater is 1.5 x 1021 L. Assume that seawater contains 3.1% NaCl by mass (this means that there are 3.1 g NaCl in 100 g solution) and that its density is 1.03 g/mL, calculate the total mass of NaCl in the seawater in kilograms. Note that 1 kg = 1000 g. 4. Copy the table and fill in the blanks with the appropriate values, symbols and the like: (Note: You can use a periodic table to locate the element.) 5. 6. 7. 8. SYMBOL protons neutrons electrons net charge Which of the following are: (a) SO₂ (b) Sg 5 6 5 Write only the letter of your choice. (c) Cs (d) N₂O5 56 26 A. Molecules but not compounds B. Compounds but not molecules C. Both compounds and molecules Which of the following has more atoms? A. 1.10 g of hydrogen (H) atoms B. 14.7 g of chromium (Cr) atoms 2+ Fe CHEM01-(09-101P) Problem Set No. 1 (e) (f) 0₂ o o Which of the following has a greater mass? A. 2.0 atoms of lead B. 5.1 x 1023 mole lithium 16 18 - 3 79 117 79 (g) CH4 (h) KBr 86 136 0 Write the letter of your choice and support your answer with computations. No solution, no credit. (i) P4 (₁) LiF Calculate the number of C, H and O atoms in 1.50 g of glucose, C6H12O6. There should be 3 answers. page 2 Write the letter of your choice and support your answer with computations. No solution, no credit. 9. Stannous fluoride (SnF₂) is often added to toothpaste as an ingredient to prevent tooth decay. What is the mass of fluorine (in grams) in 24.6 g of the compound? 10. Determine the mass percent composition of each element in calcium silicate CaSiO3. 11. A compound is found to contain 23.3% magnesium, 30.7% sulfur, and 46.0% oxygen. What is the empirical formula of this compound? 12. The complete combustion of acetylene (C₂H₂) is described by the following reaction: CzHz + Oz → CO2 + H2O A. Balance the above equation with the lowest set of whole numbers. B. If 2.35g C₂H₂ is burned with enough oxygen, how many grams of CO₂ will be formed?
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