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Concept explainers
(a)
Interpretation : The number of moles of
Concept Introduction : A
The moles and grams of reactant and product can be calculated with the help of mole concept.
(b)
Interpretation : The mass of
Concept Introduction : A chemical reaction involves the formation of some new product molecules with the help of some reactant molecules either by bond making or bond breaking.
The moles and grams of reactant and product can be calculated with the help of mole concept.
(c)
Interpretation : The mass of
Concept Introduction : A chemical reaction involves the formation of some new product molecules with the help of some reactant molecules either by bond making or bond breaking.
The moles and grams of reactant and product can be calculated with the help of mole concept.
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Chapter 9 Solutions
EP BASIC CHEMISTRY-STANDALONE ACCESS
- 5. Which element is reduced in the following reaction: 2Mg + O2 → 2M9O if Mg goes from 0 to +2 and O goes from 0 to -2? O Mg and O Neither element Mg New version available! (3.0.220) GET IT NOW PRarrow_forwardIn the following reaction, oxygen is the excess reactant. (8 points)SiCl4 + O2 → SiO2 + Cl2The table shows an experimental record for the above reaction. Trial Starting Amount of SiCl4 Starting Amount of O2 Actual Yield of SiO2 1 150 g 200 g 49.2 g 2 75 g 50 g 25.2 g Calculate the percentage yield for SiO2 for Trial 1. Also, determine the leftover reactant for the trial. Show your work. Based on the percentage yield in Trial 2, explain what ratio of reactants is more efficient for the given reaction. Your answer:arrow_forwardIn an experiment, 7.84 g of sulphuric acid reacts with potassium carbonate. H2SO4 + K2CO3 —> K2SO4 + H2O + CO2 Calculate: the mass of potassium carbonate consumed (11.0g)arrow_forward
- 1. The detonation of nitroglycerin proceeds as follows:4 C3H5N3O9(l) → 12 CO2(g) + 6 N2(g) + O2(g) + 10 H2O(g)a. How many oxygen atoms are present in a 4.5 g sample of nitroglycerin, C3H5N3O9? (8 pts)b. If a sample containing 2.00 mL of nitroglycerin (density = 1.592 g/mL) is detonated, how many grams of nitrogen gas are produced?arrow_forwardHomework Problems 4.1 Calculate the number of moles in a 5.00-g sample of each of the following: a. Caffeine (C8H10N402) b. Aspirin (C9H8O4) c. PenicillinV (C16H18N2O5S) 4.2 Balance the following equations: a. Cl₂O7 + H₂O ->>> HC104 b. Fe2(CO3)3 Fe2O3 + CO₂ c. H3PO4 + Mn(OH)2 - Mn3(PO4)2+ H₂O d. P₂H4 → PH3 + P4 e. SO₂Cl2 + HI→ H₂S + H₂O + HC1 + 1₂ 4.3 Write the formula equation, total ionic and net ionic equations for each of the following: a. The reaction of Pb(NO3)2 and LiCl. b. The reaction of ZnSO4 and KOH. 4.4 In the following redox reactions, identify what is oxidized and what is reduced: a. Zn(s) + 2Ag (aq) → Zn²+(aq) + 2Ag(s) - b. Sn²+ (aq) + 2Ce+(aq) c. 2Au(s) + 6H*(aq) d. 4Co(s) + 302(g) e. 2CO(g) + O2(g) → → Sn(aq) + 2Ce³+ (aq) 3+ 2Au³+ (aq) + 3H₂(g) 2C0203(s) 2CO2(g) 4-24arrow_forwardA student sets up and solves the following equation to solve a problem in solution stoichiometry. Fill in the missing part of the student's equation. (47.6) 65.08 mol 1 mL -3 10 L mol (3²) 3.2 L = 2.3 x 10 mL x10 ロ・ロ X μarrow_forward
- 9. 10. Mg + Reaction Type: _MgO Answer: When 0.671 moles of magnesium reacts with an excess of oxygen gas, how many moles of magnesium oxide will form? _Na₂SO4 _Ca(OH)₂ + Reaction Type: _CaSO + Answer: How many grams of calcium sulfate can be produced from 210.5 g calcium hydroxide with an excess of Na₂SO? NaOH Copyright © 2019 Chemistry Cornerarrow_forward9.25 For each of the following reactions, calculate the grams of indi- cated product when 25.0 g of the first reactant and 40.0 g of the second reactant are used: a. 2SO₂(g) + O₂(g) 2SO3(g) (SO3) b. 3Fe(s) + 4H₂O(1) →→→→→Fe3O4(s) + 4H₂(g) (Fe3O4) c. C₂H₁6(1) + 110₂(g) → 7CO₂(g) + 8H₂O(g) (CO₂)arrow_forward9:55 ull LTE Question 4 of 15 Submit Determine the mass in grams of C4H10 that are required to completely react to produce 8.70 mol of CO2 according to the following combustion reaction: 2 C4H10(g) + 13 O2(g) → CO2(g) + 10 H20(g) STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 0.0374 2 mol C4H10 1 mol CO2 8.70 44.01 g H20 2.18 4.35 g O2 18.02 208.00 g CH10 126 13 mol H20 10 6.022 x 1023 mol O2 58.14 g CO2 Tap here or pull up for additional resourcesarrow_forward
- 5. (10 pts) Sulfuric acid (H2SO4) reacts with sodium hydroxide (NaOH) to produce water (H2O) and sodium sulfate (Na2SO4). In order to react 100 g of sulfuric acid, how many grams of sodium hydroxide are required?arrow_forward9.1 Calculate the total mass of the reactants and the products for each of the following equations: a. 2SO₂(g) + O₂(g)2SO3(g) b. 4P(s) + 50₂(g) 2P₂O5(s) nogearrow_forward1. (10.3- 1.24)/18.43 2. A penny minted after 1982 has a mass of 2.5 g Calculate total mass of three such pennies. 3. The following are placed in a beaker weighing 39.457 g: 2.689 g of NaCl, 1.26 g of sand and 5.0 g water. What is the final mass of the beaker? 4. If the beaker containing a sample of alcohol weighs 49.8767 g and the empty beaker weighs 49.214 g, what is the weight of the alcohol? 5. A flask that weighs 345.8 g is filled with 225 mL of carbon tetrachloride. The weight of the flask and carbon tetrachloride is found to be 703.55 g. From this information, calculate the density of carbon tetrachloride.arrow_forward
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