help Canyons - CHEM 202 - Spring 20 - DHAR > Activities and Due Dates >...
lege - SCC 202 - Summer20 - KOWALCZYK > Activities and Due Dates > HW 7 - Chapter 17 Assignment Score: 75.9% Resources [ Give Up? Hint Check Answer Question 17 of 17 > Consider an amphoteric hydroxide, M(OH), (), where M is a generic metal. MOH),(s) = M2+(aq) + 2OH(aq) Ksp = 2 x 10-16 M(OH),(s) + 2OH(aq) = [M(OH),]-(aq) Ki = 0.09 Estimate the solubility of MOH), in a solution buffered at pH = 7.0, 10.0, and 14.0....
ollege - SCC 202 - Summer20 - KOWALCZYK > Activities and Due Dates > HW 5 - Chapter 15 Assignment Score: 70.8% Resources Give Up Hint Check Answer < Question 12 of 25 > Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S2(g) + C(s) = CS, (g) K. = 9.40 at 900 K How many grams of CS, (g) can be prepared by heating 18.2 mol S2(g) with excess carbon in a 9.60 L...
STEELE > Activities and Due Dates > HW 14A Homeowork #1: Buffers mt Score: 27.1% Resources [ Give Up? Hint of 11 > Calculate the change in pH when 8.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M NH, (aq) and 0.100 M in NH Cl(aq). Consult the table of ionization constants as needed. ApH = 1 Calculate the change in pH when 8.00 mL of 0.100 M NaOH is...
College - SCC 202 - Summer20 - KOWALCZYK > Activities and Due Dates > HW5 - Chapter 15 Assignment Score: 74.8% O Resources [ Give Up? Hint Check Answer Question 15 of 25 > Phosphorus pentachloride decomposes according to the chemical equation PC1, (g) =PC1, (g) + Cl2(g) K. = 1.80 at 250 °C A 0.4033 mol sample of PCI, (g) is injected into an empty 4.70 L reaction vessel held at 250 °C. Calculate the concentrations of PCI, (g)...
-LEHMAN> Activities and Due Dates HW 15 Acids and Bases C Give Up? Hint gnment Score: 1177/1400 Resources estion 14 of 14> By titration, it is found that 28.5 mL of 0.127 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the concentration of the HCl solution. HCl concentration: м ACTIvat Question Source: MRG-General Chem about us careers pacypolic terma of use contact
ollege - SCC 202 - Summer20 - KOWALCZYK > Activities and Due Dates > HW 7 - Chapter 17 Assignment Score: 70% Resources Give Up? Hint Check Answer 2 Question 16 of 17 > Above what Fe2+ concentration will Fe(OH), precipitate from a buffer solution that has a pH of 8.08? The Ksp of Fe(OH), is 4.87x10-17 [Fe2+] = M about us careers privacy policy terms of use contact us help
119 - PATEL > Activities and Due Dates > HW 4 nt Score: 500/1800 12 of 18 ) Resources Hint te this redox reaction into its balanced component half-reactions. Use the symbol e for an electron Check Answi Cl2 + 2 K 2 KCI on half-reaction; half-reaction: 500/1800 Question 13 of 18 Resources > Hint Check Based on the activity series, determine whether each of these reactions will occur. Will occur (spontaneous) Will not occur (nonspontaneous) Answer Bank about us...
ollege - SCC 202 - Summer20 - KOWALCZYK > Activities and Due Dates > HW 8 - Chapter 19 Assignment Score: 72.8% Resources Give Up Hint Check Answer < Question 11 of 20 > Given the information A+B - 2D C D AH = 677.9 kJ AH' = 498.0 kJ AS = 323.0 J/K AS = -198.0 J/K calculate AGⓇ at 298 K for the reaction A+B 2C AGⓇ = KJ about us careers privacy policy terms of use contact...
n Arbor-CHEM 105 - Spring 20 - KETCHUM > Activities and Due Dates > HW 7 Assignment Score: 74.4% Resources G Give Up? Feedback Resume < Question 5 of 26 > Attempt 1 Identify the products formed in this Brønsted-Lowry reaction. HCO3 + Br0 acid + base acid: H₃PO, base: HP0- +,0
, Armstrong - CHEM 1212 - Fall19 - HIZER > Activities and Due Dates > HW 17 ert Score: 735/2300 Resources [ Give Up? | < Question 90123 > ОА Using the data in the table, determine the rate constant or ne reaction and select the appropriate units. Trial [A] (M) 0.390 A + 2B - C +D [B] (M) Rate (M/s) 0.290 0.0208 0.580 0.0208 0.290 0.0832 0.390 0.780 1.84 x10-1 Units M-25-1 about us Careers Privacy policy Terms...