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Concept explainers
The following problems are related to the topics in this chapter. However, they do not all follow the chapter order and they require you to combine concepts and skills from several sections. These problems will help you increase your critical thinking skills and prepare for your next exam.
Aluminum and chlorine combine to form aluminum chloride. (9.2, 9.3. 9.4, 9.5)
a. How many moles of
b. How many grams of
c. When 13.5 g of Al reacts with 8.00 g of
d. If 45.0 g of Al and 62.0 g of
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Chapter 9 Solutions
EP BASIC CHEMISTRY-STANDALONE ACCESS
- You have a large bottle of 10.0 M hydrochloric acid and you want to make 6.0 L of 3.0 M hydrochloric acid. How much concentrated do you need and how much water? (1.8, 4.2)arrow_forward9.116 Lithium chloride has a solubility of 55 g of LiCl in 100. g of H,O at 25 °C. Determine if each of the following mixtures forms an unsaturated or saturated solution at 25 °C: (9.3) a. adding 10 g of LiCl to 15 g of H;O b. adding 25 g of LİCI to 50. g of H,0 c. adding 75 g of LiCl to 150. g of H,O ne on nearrow_forward(LO 7.1.1, 7.1.2, 7.2.1, 7.2.2) A small home might use about 6.50 moles of methane, CH4, per day in moderately cold weather for heating. How many moles of water will be produced when combusting 6.50 moles of methane? CH4 + CO₂ + 2.17 3.25 4.33 6.5 9.75 13.0 19.5 0₂ → 111- H₂O (unbalanced)arrow_forward
- (6.3)The volume of a gas is 0.953 L at 30.0 °C. If the gas is heated to 60.0 °C, what would be the volume of the gas (in L) at this temperature? O 1.05 L O 0.867 L O 1.91 L O 0.477 Larrow_forwardOne of the reactions in the industrial production ofnitric acid involves the production of nitric oxide: 4 NH3(g) 1 5 O2(g) → 4 NO(g) 1 6 H2O(g) (7.4) T/I a) If 4500 kg of ammonia, NH3(g), react with7500 kg of O2, what mass of NO will form? (b) What mass of the excess reagent will remain?arrow_forwarddoes it compare with the known melting and boiling point? (1) 9. The average kinetic energy of water molecules is a measure of the temperature of water. When the temperature of water remains constant the average kinetic energy of the molecules remains constant, even though the water is being heated by the Bunsen flame. So, energy is being taken in by the water, but it is not being used to increase the kinetic energy of the molecules. 9.1 What type of energy are the water molecules gaining during a phase change? (1) 9.2 Explain your reasoning (to question 9.1) with reference to the kinetic theory of matter. 10. Write the conclusion. (3) [30]arrow_forward
- (5.8)Which of the following reactions will form a gaseous product? O H₂CO3(aq) + Pb(NO3)2(aq) O NaOH(aq) + HNO3(aq) O None of these O Na₂SO3(aq) + H₂SO4(aq) ◄ Previousarrow_forwardshould react most rapidly with Cl2 and AICI. (9.28.h) should have the highest boiling point, 7. Of the compounds shown below, B A. D. 8. Of the compounds shown below, NO2 HO, is not aromatic. (9.1 lg,i) 9. Of the compounds shown below, only - D Z-I Uarrow_forwardWhat is the pH of a 0.25 M solution of a strong acid? (0.6)arrow_forward
- When 1.0 g of gasoline burns, it releases 11 kcal. The density of gasoline is 0.74 g/mL. (3.4, 3.6) How many megajoules are released when 1.0 gal of gasoline burns? If a television requires 150 kJ/h to run, how many hours can the television run on the energy provided by 1.0 gal of gasoline?arrow_forward(Q28) How many grams of phosphine (PH3) gas can form when an excess of solid phosphorus (P4) reacts in a sealed chamber with 56.2 liters of hydrogen (H2) gas at STP? (3 sf)arrow_forward9.2 An unknown salt is found to contain 30,6% of water. The formula mass for anhydrous salt (AS) is 100 amu. 9.2.1 Calculate the amount of water bonded with an unknown salt. 9.2.2 An anhydrous salt above consists of a metal with a molar mass of 40. (a) Write down the chemical symbol of this metal. (b) To which group does the metal belongs? 9.2.3 Write down the chemical formula of an anhydrous salt above.arrow_forward
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