Concept explainers
(a)
Interpretation:
The number moles of water are needed to react
Concept Introduction:
Mole ratio:
A mole ratio is a ratio between the numbers of moles of any two species involved in a
Example,
In the reaction
(a)
Answer to Problem 17PE
The number moles of water are needed to react
Explanation of Solution
Given,
The number of moles of oxygen is
The balanced reaction is,
In the mole ratio, the coefficients of the balanced equation are used. Therefore the mole ratio is
The number of moles can be calculated as,
The number moles of water are needed to react
(b)
Interpretation:
The number of grams of
Concept Introduction:
Refer to part (a).
(b)
Answer to Problem 17PE
The number of grams of
Explanation of Solution
Given,
The number of moles of water is
The balanced reaction is,
In the mole ratio, the coefficients of the balanced equation are used. Therefore the mole ratio is
The number of moles can be calculated as,
Conversion of moles to grams:
The molar mass of
The number of grams of
(c)
Interpretation:
The number of moles of carbon dioxide are produced when
Concept Introduction:
Refer to part (a).
(c)
Answer to Problem 17PE
The number of moles of carbon dioxide is
Explanation of Solution
Given,
The molecular weight of hydrochloric acid is
The molecular weight of carbon dioxide is
The given mass of hydrochloric acid is
The balanced reaction is,
In the mole ratio, the coefficients of the balanced equation are used. Therefore the mole ratio is
The number of moles can be calculated as,
The number of moles of carbon dioxide is
(d)
Interpretation:
The number of grams of
Concept Introduction:
Refer to part (a).
(d)
Answer to Problem 17PE
The number of grams of
Explanation of Solution
Given,
The molecular weight of
The molecular weight of carbon dioxide is
The given mass of carbon di oxide is
The balanced reaction is,
In the mole ratio, the coefficients of the balanced equation are used. Therefore the mole ratio is
The number of grams can be calculated as,
The number of grams of
(e)
Interpretation:
The number of grams of
Concept Introduction:
Refer to part (a).
(e)
Answer to Problem 17PE
The number of grams of
Explanation of Solution
Given,
The molecular weight of
The molecular weight of
The given mass of
The mass in kilogram has to converted to gram,
The balanced reaction is,
In the mole ratio, the coefficients of the balanced equation are used. Therefore the mole ratio is
The number of grams can be calculated as,
The number of grams of
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Chapter 9 Solutions
EBK FOUNDATIONS OF COLLEGE CHEMISTRY
- 4.80 The reaction shown below is used to destroy Freon-12 (CF2Cl2), preventing its release into the atmosphere. What mass of NaF will be formed if 250.0 kg of CF2Cl2 and 400.0 kg of Na2C2O4 are heated and allowed to react to completion? CF2Cl2+2Na2C2O42NaF+2NaCl+C+4CO2arrow_forwardDetermine rxnH 25 C for the following reaction: NO g O2 g NO2 g This reaction is a major participant in the formation of smog.arrow_forwardIn the synthesis of ammonia, if [H2]/t = 4.5 104 mol/L min, what is [NH3]/t? N2(g) + 3 H2(g) 2 NH3(g)arrow_forward
- Nickel(II) sulfide, NiS, occurs naturally as the relatively rare mineral millerite. One of its occurrences is in meteorites. To analyze a mineral sample for the quantity of NiS, the sample is dissolved in nitric add to form a solution of Ni(NO3)2. NiS(s) + 4 HNO3(aq) Ni(NO3)2(aq) + 2 NO2(g) + 2 H2O(l) + S(s) The aqueous solution of Ni(NO3)2 is then reacted with the organic compound dimethylglyoxime (C4H8N2O2) to give the red solid Ni((C4H7N2O2)2. Ni(NO3)2(aq) + 2 (C4H8N2O2)(aq) Ni(C4H7N2O2)2 + 2 HNO3(aq) Suppose a 0.468-g sample containing millerite produces 0.206 g of red, solid Ni(C4H7N2O2)2 What is the mass percent of NiS in the sample?arrow_forwardMuch of todays plumbing in newly built homes is made from a plastic called poly vinyl chloride, or PVC. Using Table 12.3, write a reaction for the formation of poly vinyl chloride.arrow_forward4.65 Using the web, find out how lead “poisons” the catalyst in a catalytic converter.arrow_forward
- There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. In the first step, calcium carbide and water react to form acetylene and calcium hydroxide: CaC₂(s) + 2 H₂O(g) → C₂H₂(g) + Ca(OH)₂(s) - In the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6C₂H₂(g) + 3 CO₂(g) + 4H₂O(g) → 5 CH₂CHCO₂(g) ΔΗ = 132. kJ Calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. Round your answer to the nearest kJ. KJ X Ś AH-414. kJarrow_forwardChlorine atoms in the atmosphere can react with ozone. Mathematically combine the following two reactions to create an overall balanced equation with the lowest whole-number coefficients. All chemical species in the reaction are gas-phase. Which of the following best represents the overall reaction? C1+03 → Clo+0₂ c10+ 0 → Cl + 0₂ To combine the reactions to create the overall balanced equation, you need to eliminate spectator species and only include the remaining species. O There are two lone chlorine atoms in the overall balanced reaction. O Two chlorine atoms can cause the production of two oxygen molecules. O CIO appears on the reactant and product side of the overall balanced reaction. Lone oxygen atoms are consumed by the overall reaction. O There is a net conversion of O2 to 03.arrow_forwardBlast furnaces extra pure iron from the iron(III) oxide in iron ore in a two step sequence. In the first step, carbon and oxygen react to form carbon monoxide: 2C(s) + O₂(g) → 2CO (g) In the second step, iron(III) oxide and carbon monoxide react to form iron and carbon dioxide: Fe₂O3(s) + 3CO(g) → 2Fe(s) + 3 CO₂ (g) crosoft C tab Suppose the yield of the first step is 60.% and the yield of the second step is 72.%. Calculate the mass of carbon required to make 5.0 kg of iron. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits. 0 W Microsoft Microsoft 6.52.210... s lock esc Explanation 1 Q A N 10 2 Check 9,041 W S X H 1 control option command # #3 E D x10 6 14 X $ 4 DEC 3 C R ロ・ロ F S Q Search or enter website name ci dº % 5 V T tv G > MacBook Pro 6 B Y H & 7 Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accessibility U N 00 * 8 J 1 M 7 ( 9 K A O H O L P I W [ command option ? C HAI barrow_forward
- There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first step, copper(I) sulfide and oxygen react to form copper(I) oxide and sulfur dioxide: 2 Cu, S(s)+3 O,(9)→2Cu,O(s)+2 SO,(9) In the second step, copper(I) oxide and carbon react to form copper and carbon monoxide: Cu,O(s)+C(s)–→2 Cu(s)+CO(g) Write the net chemical equation for the production of copper from copper(I) sulfide, oxygen and carbon. Be sure your equation is balanced.arrow_forwardThere are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. In the first step, calcium carbide and water react to form acetylene and calcium hydroxide: CaC₂(s) + 2 H₂O(g) → C₂H₂(g) + Ca(OH)₂(s) In the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6C₂H₂(g) + 3 CO₂(g) + 4H₂O(g) → 5 CH₂CHCO,H(g) Explanation Taipy Check Calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. Round your answer to the nearest kJ. X ΔΗ= -414. kJ S ΔΗ= 132. kJ MacBook Air + © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Aarrow_forwardBlast furnaces extra pure iron from the iron(III) oxide in iron ore in a two step sequence. In the first step, carbon and oxygen react to form carbon monoxide: 2C(s) + O₂(g) → 2 CO (g) In the second step, iron(III) oxide and carbon monoxide react to form iron and carbon dioxide: Fe₂O₂ (s) + 3CO(g) → 2Fe(s) + 3 CO₂ (g) Z Suppose the yield of the first step is 93.% and the yield of the second step is 91.%. Calculate the mass of carbon required to make 4.0 kg of iron. Be sure your answer has a unit symbol, if needed, and is rounded to 2 significant digits. 10 Q Explanation 6 2 S command X H Check 1 3 E D C 8 R F X V % 5 0.0 3 T G 80 6 B Y H N U © 2023 McGraw H LLC. All Rights Reserved Terms of Use Privacy Center Accessibility J +00 8 - M 9 K O - V. O P - command 1. K optionarrow_forward
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