Homework Answers
Complete reaction is:
CH4 + 2O2 ---> CO2 + 2H2O
Moles of CH4 = Mass/ molar mass = 60 g/ (16 g/mol) = 3.75 mol
From reaction
3.75 mol CH4 * ( 1 mol CO2 / 1 mol CH4)*(44 g CO2 / 1 mol CO2)= 165 g
Thus, Mass percent = experimental value / Theoretical value )*100% = ( 112/ 165 )*100% = 67.9%
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Quiz 3 Spry 2020 Chapter 16 Multiple Choice Question 44 Part A Which of the following...
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For question 2, the initial amount of O2 is 2 and of CH4 is 1. This...
For
question 2, the initial amount of O2 is 2 and of CH4 is 1. This
what I believe it is honestly not completly sure due to the fac
that this is all information I can. Please just try your best with
the information adviliable.
Question 1 An unknown chemical compound has the four elements with the following percent compositions. Carbon: 48.00% Hydrogen: 8.00% Oxygen: 16.00% Nitrogen: 28.00% A Determine the Empirical Formula. B. If the molar mass of this...
QUESTION 2 When 56.68 g of magnesium metal reacts with excess HCl(aq) to form hydrogen gas...
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hapter 8 Multiple Choice Question 88 Part A Calculate AG for the reaction below and tell...
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For each of the following reactions, calculate the grams of indicated product when 16.4 g of...
For each of the following reactions, calculate the grams of indicated product when 16.4 g of the first reactant and 10.1 g of the second reactant are used. You may want to reference (Pages 253 - 258) Section 7.9 while completing this problem. AlzS3 (s) + 6H2O(1)——2Al(OH)3 (aq) + 3H2S(g) Calculate the mass of H2S. .: HÅR O 2 ? mass of (H2S) = Value Units Submit Submit Request Answer Learning Goal: To calculate theoretical and percent yields, given the...
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Please answer all multiple choice
All
questions need to be answered!
Questions 1-20 are multiple choice questions. Please mark the correct circle on the Scantron form. Only the Scantron form will be graded. Scantron must be filled in before time is called Which of the following acids is not a strong acid? 5 HI b. HBr to SEHNO, HF HESO. Venter 2. Which of the following is an example of an empirical formula: a Cs Ho HO LP Fea(SO) d)...
Part A If 8.6 g of CH4 and 5.0 g of O2 react, what is the mass, in grams, of H2O that is produced? CH (g)+202(g)CO2(g) +2H20(g) Express your answer with the appropriate units. HA m(H2O) = Value Units Submit Request Answer
Question 1 5 pts A 16.1 g sample of hydrogen gas reacts with an excess of oxygen gas in the presence of two catalysts to give an actual yield of 103.9g H202. What is the percent yield for this reaction? Reaction: O2(g) + H2(g) → H2O2(aq) 0 38.2% O 72.3% O 645% O 15.5% O 5.93%
Quiz 3 Spry 2020 Chapter 16 Multiple Choice Question 44 Part A Which of the following bases is the STRONGEST? The base is followed by its Kp. O CsH5N, 1.7 x 10-9 O (CH3CH2)2NH, 8.6 x 10-4 O NH3, 1.76 x 105 O CH3NH2, 4.4 x 104 CoH5NH2, 4.0 x 10-10 Submit Request Answer rovide Feedback Type here to search
For
question 2, the initial amount of O2 is 2 and of CH4 is 1. This
what I believe it is honestly not completly sure due to the fac
that this is all information I can. Please just try your best with
the information adviliable.
Question 1 An unknown chemical compound has the four elements with the following percent compositions. Carbon: 48.00% Hydrogen: 8.00% Oxygen: 16.00% Nitrogen: 28.00% A Determine the Empirical Formula. B. If the molar mass of this...
QUESTION 2 When 56.68 g of magnesium metal reacts with excess HCl(aq) to form hydrogen gas and magnesium chloride, how many liters of H2 gas are produced at STP? (Hint: start by writing a balanced chemical reaction.) QUESTION 3 Methane (CH4) burns in air to form carbon dioxide and water as shown below. CH4(g)2 O2(g)CO2(g)2 H20(0) If a sample of methane occupies 344. mL at 1.37 atm, what volume (in mL) of oxygen gas at the same temperature and pressure...
hapter 8 Multiple Choice Question 88 Part A Calculate AG for the reaction below and tell whether it is spontaneous or nonspontaneous under standard conditions at 25 C. 2 S(s) +3 02(g) + 2 H20()-2 H2SO4() AS =-505 J/mol AH-1056 kJ/mol AG=-1207 kJ and the process is spontaneous. AG =-906 kJ and the process is spontaneous AG = -906 kJ and the process is nonspontaneous AG=-1207 kJ and the process is nonspontaneous Submit Request Answer Provide Feedback
For each of the following reactions, calculate the grams of indicated product when 16.4 g of the first reactant and 10.1 g of the second reactant are used. You may want to reference (Pages 253 - 258) Section 7.9 while completing this problem. AlzS3 (s) + 6H2O(1)——2Al(OH)3 (aq) + 3H2S(g) Calculate the mass of H2S. .: HÅR O 2 ? mass of (H2S) = Value Units Submit Submit Request Answer Learning Goal: To calculate theoretical and percent yields, given the...
Please answer all multiple choice
All
questions need to be answered!
Questions 1-20 are multiple choice questions. Please mark the correct circle on the Scantron form. Only the Scantron form will be graded. Scantron must be filled in before time is called Which of the following acids is not a strong acid? 5 HI b. HBr to SEHNO, HF HESO. Venter 2. Which of the following is an example of an empirical formula: a Cs Ho HO LP Fea(SO) d)...
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