Predict whether the entropy change of the system in each of the following is positive or negative. Show your solution and explain 1.) O2(g) → 20(g)

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Q: Solve the following problems. 1. The concentration of H+ ions in a bottle of table wine was 3.2 x…

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Q: Consider the following reaction: If 10.0 g of KF are used, how many grams of CaF2 can be formed?…

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Q: What volume in mL of 0.220 M HBr solution is required to produce 0.0195 moles of HBr?

A: Given, Molarity of HBr solution = 0.220 M Moles of HBr = 0.0195 moles

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Q: This is an impossible formula. If it were real, determine the percent abundance of N. C₁H₂N2…

A: given, formula = C1H2N2 Molar mass of C1H2N2 = 1×12.01 g/mol + 2×1.01 g/mol + 2×14.01 g/mol = 42.05…

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Q: Chemistry Balance the following reaction and construct an electrochemical cell that represents this…

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Q: 10. Use the following equation answer the questions below. Mn(s) + Sn(NO3)2(aq) → Sn(s) +…

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Q: PLEASE SKIP IF YOU HAVE ALREADY DONE THIS. Thank you

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Q: Chemistry Assume that we have a certain biogas the consists of 66% methane (CH4) and 30% carbon…

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Q: 4. The following data were obtained for the follwing chemical reaction: 2A + 3B ---> 2C + D Trial #…

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Q: 3. In the following reaction, the products are not favoured at room temperature, but are favoured at…

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Q: The number of formula units in 2.5x10-4 g of magnesium nitrate

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Q: D[α] 20 (° mL/ dm g)  α (°)  c l   +10.5 5.2 kg/ L 35 cm   – 15.75   2.3 g/ mL  15 cm  + 5.25…

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Q: Select the arrows that best represent this proton transfer reaction. H …H N H H H N H yazl N H N H H…

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Q: Calculate the volume of Ba(OH)2 0.20 mol/L necessary to neutralize 300.0mL of H3PO4 0.30mol/L.

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Q: 10. Use the following equation answer the questions below. Mn(s) + Sn(NO3)2(aq) → Sn(s) +…

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Q: 12. Determine how many liters 7.80 g of chlorine gas would occupy at: a. STP. b. 160.°C and 3.00…

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Q: Aspirin is an ester and undergoes the typical reaction of esters.  Write a mechanism for the…

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Q: The number of molecules in 76g of fluorine

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Q: Draw the Lewis structure for formamide (CH₂NO). Formamide molecules have one carbonyl group and one…

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