Homework Answers
there are 8 Co atoms at corners
effectiveness of corner is 1/8
So,
total number of Co that are complete part of cell = 8*1/8 = 1
Both O atoms are completely inside the cell
so,
total number of O that are complete part of cell = 2
Hence, the empirical formula is:
CoO2
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Part C l ReviewI Constants Periodic Table Calculate the partial pressure of Ar in the mixture. A mixture containing 0.767 mol He(g), 0.300 mol Ne(g), and 0.118 mol Ar(g) is confined in a 10.00-L vessel at 25 °C. You may want to reference (Pages 411-412) Section 10.6 while completing this problem. atm Submit Part D Calculate the total pressure of the mixture atm
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O len U. L < 19 of 32 > Review | Constants Periodic Table You may want to reference (Pages 328-330) Section 8.5 while completing this problem. Part A How would you prepare 2 L of 1 M MgCl, from a 3 M MgCl, stock solution? Add 330 mL of the 3 M MgCl, stock solution to enough distilled water for a total volume of 2 L of solution Add 1500 mL of the 3 M MgCl, stock solution to...
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2. Consider the ionic compound whose unit cell is shown below. The white spheres represent sulfur atoms and the black spheres represent zinc atoms. A) In which type of unit cell are the sulfur atoms found in this ionic compound? (1 point)
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Part A Combustion analysis of 1000 g of an unknown compound containing Carbon, hydrogen, and oxygen...
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please help... Constants Periodic Table Part A An alternative approach to bomb calorimetry is to establish...
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Review Constants Periodic Table Part B Consider the balanced chemical equation. H2O3(aq) +31 (aq) + 2H+...
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Exercise 13.36 with eText link 1 of 10 ㎜ Review 1 Constants Periodic Table Part A Refer to Figure 13.4 in the textbook to determine whether each of the given amounts of solid will completely dissolve in the given amount of water at the indicated temperature. Check all that apply 15.0 g KCIO3ìn 115 g of water at 25°C 5o.0 g Pb(NO3)2 in 95.0 g of water at 10 C 45.0 g CaCl2 in 105 g of water at 5°C...
Part C l ReviewI Constants Periodic Table Calculate the partial pressure of Ar in the mixture. A mixture containing 0.767 mol He(g), 0.300 mol Ne(g), and 0.118 mol Ar(g) is confined in a 10.00-L vessel at 25 °C. You may want to reference (Pages 411-412) Section 10.6 while completing this problem. atm Submit Part D Calculate the total pressure of the mixture atm
O len U. L < 19 of 32 > Review | Constants Periodic Table You may want to reference (Pages 328-330) Section 8.5 while completing this problem. Part A How would you prepare 2 L of 1 M MgCl, from a 3 M MgCl, stock solution? Add 330 mL of the 3 M MgCl, stock solution to enough distilled water for a total volume of 2 L of solution Add 1500 mL of the 3 M MgCl, stock solution to...
Qua (Cpt. 3) , Microsoft Edge Quiz (Chpt.3) xercise 3.50 -Enhanced- with Feedback Constants I Pediodic Table Part A Enter the formula for each molecular compound radon tetraluoride You may want to reference (Pages 102-105) Section 3.6 while completing this problem Express your answer as a chemical formula. Submit Part B dichlorine monoxide Express your answer as a chemical formula
B) What is the empirical formula of this ionic compound?
2. Consider the ionic compound whose unit cell is shown below. The white spheres represent sulfur atoms and the black spheres represent zinc atoms. A) In which type of unit cell are the sulfur atoms found in this ionic compound? (1 point)
Cyclopropane rearranges to form propene in the gas phase. Constants Periodic Table Part A - If the initial cyclopropane concetration is 0.0445 M. what is the cyclopropane concentration after 251 minutes? Express your answer with the appropriate units. CH, H₂CH₂ CH3-CH=CH μΑ ? Value Units The reaction is first order in cyclopropane and has a measured rate constant of 3.36 x 10-ºsat 720 K. You may want to reference (Pages 635-641) Section 14.4 while completing this problem. Submit Request Answer...
Part A Combustion analysis of 1000 g of an unknown compound containing Carbon, hydrogen, and oxygen produced 3.129 g of Co, and 1701 of Ho What is the empical formula of the compound? o Cago O CHO2 Csoos CyH02 Submit Best Answer Part A What is the empirical formula of a compound that contains 5.28 g of C, 0.887 g of H, and 3.52 g of O? O Catgo O C2H4O2 ОСНО4 C2H40 0 C2H4O3 Submit Request Answer Provide Feedback...
please help...
Constants Periodic Table Part A An alternative approach to bomb calorimetry is to establish the heat capacity of the calorimeter exclusive of the water it contains. The heat absorbed by the water and by the rest of the calorimeter must be calculated separately and then added together A1 148 g sample of benzoic acid is burned in excess O(g) in a bomb immersed in 1181 g of water. The temperature of the water rises from 2496 to 30.25...
Review Constants Periodic Table Part B Consider the balanced chemical equation. H2O3(aq) +31 (aq) + 2H+ (aq) + (aq) + 2H20(1) In the first 10.0 s of the reaction, the concentration of drops from 1.000 M to 0.820 M You may want to reference (Pages 625 - 628) Section 14.2 while completing this problem. Predict the rate of change in the concentration of 13" (A13 /At) Express the rate to three significant figures and include the appropriate units. ? A[13]...
Review Constants Periodic Table A 1.633 g sample of a component of the light petroleum distillate called naphtha is found to yield 5.005 g CO2(g) and 2.390 g H2O(1) on complete combustion. Part A This particular compound is also found to be an alkane with one methyl group attached to a longer carbon chain and to have a molecular formula twice its empirical formula. Use the masses of carbon dioxide, CO2, and water, H, O, to determine the empirical formula...
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