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aking Pool 8 Time Remaining:02:44:51 1. An oxide of nitrogen contains 30.45 mass % N and...
aking Pool 8 Time Remainin 1. What mass (in grams) of HIO3 contains 2.85x1026 H atoms?...
aking Pool 8 Time Remainin 1. What mass (in grams) of HIO3 contains 2.85x1026 H atoms? 6.55x104g 5.35x1049 8.96x104g 2.18x104g 8.34x104g Use the slider to rate your confidence on this question. 100 Not at all confident Very confident Save
Taking Pool 7 Time Remaining:02:46:44 1. Consider the following balanced equation: 702(g) + 2C2H6(9) - 4CO2(g)...
Taking Pool 7 Time Remaining:02:46:44 1. Consider the following balanced equation: 702(g) + 2C2H6(9) - 4CO2(g) + 6H20(1) If 34.8 moles of O2(g) and 17.7 moles of C2H (9) are allowed to react to produce 17.8 moles of H20(1), what is the percent yield of the reaction? 87.8% 66.6% 90.1% 59.7% 94.3% Use the slider to rate your confidence on this question 100 Not at all confident Very confident
Taking Pool 3 Time Remaining:02:43:54 1. CO(g) and Fe2O3(s) react to form Fe(s) and CO2(g). What...
Taking Pool 3 Time Remaining:02:43:54 1. CO(g) and Fe2O3(s) react to form Fe(s) and CO2(g). What is the theoretical yield of Fe(s) if the percent yield of Fe(s) is 61.0% and 84.0 grams of Fe(s) forms. 138. grams 221. grams 51.2 grams 110. grams 193. grams Use the slider to rate your confidence on this question. 100 Not at all confident Very confident
Question 51 (8 points) A 10 gram sample of which substance contains the greatest number of...
Question 51 (8 points) A 10 gram sample of which substance contains the greatest number of hydrogen atoms? 10 grams of CH4 10 grams of HCI 10 grams of PH 3 10 grams of H2 Question 52 (8 points) What is the oxidation number of nitrogen in the nitrate ion? :0: +6 +5 O-1 +1 Question 49 (8 points) Which set of quantum numbers is correct and consistent with n = 4? me = -3 ms = +1 me =...
Experiment 10: Empirical Formulas Post-lab: 1. In the experiment, how did you figure out the mass...
Experiment 10: Empirical Formulas Post-lab: 1. In the experiment, how did you figure out the mass of any in your compound After heating minus before heating 2.8360 2.1.65g of 2. 1.651g of silver is combined with 0.1224g of oxygen. Find the empirical formula mole -0. 1.659 0.00 0.06 0.007 0.0 107.89-0 0.122490x Imole = 0.007 16.009 Empirical formula: 2.14 U O I 3. 7.00g of iron is reacted with 3.00g of oxygen. Find the empirical formula a exlmole -0.125 0.15...
VO V205 1. Vanadium and oxygen react to make vanadium (V) oxide. How many grams of vanadium and - oxygen are needed...
VO V205 1. Vanadium and oxygen react to make vanadium (V) oxide. How many grams of vanadium and - oxygen are needed to make 85 g of vanadium (V) oxide? Ans. 48 g of vanadium and 37 g of oxygen. 2( 50, 942) +5lis.499 ) 85g U2O5 x 1 mol v2 og 181.879 gvos k 181.87ague5 Imol v₂O5 2. Iron(III) oxide can be converted to iron metal and water by heating it with hydrogen gas. If 100 g of iron(III)...
do numbers 1 through 11 1 of root CHE 131 Chemical Principles FORMA TEST) AY 2017-18 By signing the prescere form. I...
do numbers 1 through 11
1 of root CHE 131 Chemical Principles FORMA TEST) AY 2017-18 By signing the prescere form. Ipletes that have eithe r authorized on this cam. For each question choose the best possible answer. 1. 1 g of hydrogen gas (H) occupies I La 298 K.1 g of nitrogen gas (N.) occupies 1 L 298 K. Which of the following is that (P = pressure) a) PP b) Pre Pec) Pe-Ped ) density of H, -density...
Chame nsead tu age 06-17 Experiment 8: Molar Mass of a Volatile Liquid Purpose To determine...
Chame nsead tu age 06-17 Experiment 8: Molar Mass of a Volatile Liquid Purpose To determine the molar mass of a pure substance we need to find out (a) the number of moles in a given sample, and (b) the mass of the same sample. Molar mass is then: mass divided by moles Introduction Using the ideal gas equation, PV= nRT, we can determine the number of moles (n) of gas or vapor under measured conditions of pressure (P), volume...
CHEM 1411. Review Exercises for Chapter 3, 7, 8. F19 1. Give the number of lone...
CHEM 1411. Review Exercises for Chapter 3, 7, 8. F19 1. Give the number of lone pairs around the central atom and the geometry of the ion CIO2 A) 0 lone pairs, linear 1 lone pair, bent B) C) 2 lone pairs, bent D) 3 lone pairs, bent E) 3 lone pairs, linear 2. Predict the geometry and polarity of the CS2 molecule. A) linear, polar B) linear, nonpolar C) tetrahedral, nonpolar D) bent, nonpolar E) bent, polar 3. Which...
aking Pool 8 Time Remainin 1. What mass (in grams) of HIO3 contains 2.85x1026 H atoms? 6.55x104g 5.35x1049 8.96x104g 2.18x104g 8.34x104g Use the slider to rate your confidence on this question. 100 Not at all confident Very confident Save
Taking Pool 7 Time Remaining:02:46:44 1. Consider the following balanced equation: 702(g) + 2C2H6(9) - 4CO2(g) + 6H20(1) If 34.8 moles of O2(g) and 17.7 moles of C2H (9) are allowed to react to produce 17.8 moles of H20(1), what is the percent yield of the reaction? 87.8% 66.6% 90.1% 59.7% 94.3% Use the slider to rate your confidence on this question 100 Not at all confident Very confident
Taking Pool 3 Time Remaining:02:43:54 1. CO(g) and Fe2O3(s) react to form Fe(s) and CO2(g). What is the theoretical yield of Fe(s) if the percent yield of Fe(s) is 61.0% and 84.0 grams of Fe(s) forms. 138. grams 221. grams 51.2 grams 110. grams 193. grams Use the slider to rate your confidence on this question. 100 Not at all confident Very confident
Question 51 (8 points) A 10 gram sample of which substance contains the greatest number of hydrogen atoms? 10 grams of CH4 10 grams of HCI 10 grams of PH 3 10 grams of H2 Question 52 (8 points) What is the oxidation number of nitrogen in the nitrate ion? :0: +6 +5 O-1 +1 Question 49 (8 points) Which set of quantum numbers is correct and consistent with n = 4? me = -3 ms = +1 me =...
Experiment 10: Empirical Formulas Post-lab: 1. In the experiment, how did you figure out the mass of any in your compound After heating minus before heating 2.8360 2.1.65g of 2. 1.651g of silver is combined with 0.1224g of oxygen. Find the empirical formula mole -0. 1.659 0.00 0.06 0.007 0.0 107.89-0 0.122490x Imole = 0.007 16.009 Empirical formula: 2.14 U O I 3. 7.00g of iron is reacted with 3.00g of oxygen. Find the empirical formula a exlmole -0.125 0.15...
VO V205 1. Vanadium and oxygen react to make vanadium (V) oxide. How many grams of vanadium and - oxygen are needed to make 85 g of vanadium (V) oxide? Ans. 48 g of vanadium and 37 g of oxygen. 2( 50, 942) +5lis.499 ) 85g U2O5 x 1 mol v2 og 181.879 gvos k 181.87ague5 Imol v₂O5 2. Iron(III) oxide can be converted to iron metal and water by heating it with hydrogen gas. If 100 g of iron(III)...
do numbers 1 through 11
1 of root CHE 131 Chemical Principles FORMA TEST) AY 2017-18 By signing the prescere form. Ipletes that have eithe r authorized on this cam. For each question choose the best possible answer. 1. 1 g of hydrogen gas (H) occupies I La 298 K.1 g of nitrogen gas (N.) occupies 1 L 298 K. Which of the following is that (P = pressure) a) PP b) Pre Pec) Pe-Ped ) density of H, -density...
Chame nsead tu age 06-17 Experiment 8: Molar Mass of a Volatile Liquid Purpose To determine the molar mass of a pure substance we need to find out (a) the number of moles in a given sample, and (b) the mass of the same sample. Molar mass is then: mass divided by moles Introduction Using the ideal gas equation, PV= nRT, we can determine the number of moles (n) of gas or vapor under measured conditions of pressure (P), volume...
CHEM 1411. Review Exercises for Chapter 3, 7, 8. F19 1. Give the number of lone pairs around the central atom and the geometry of the ion CIO2 A) 0 lone pairs, linear 1 lone pair, bent B) C) 2 lone pairs, bent D) 3 lone pairs, bent E) 3 lone pairs, linear 2. Predict the geometry and polarity of the CS2 molecule. A) linear, polar B) linear, nonpolar C) tetrahedral, nonpolar D) bent, nonpolar E) bent, polar 3. Which...
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