07/07/22

Find Kc and Kp at equilibrium
Consider the equilibrium system described by the chemical reaction below. At equilibrium, a 5.0 L reaction vessel contained a mixture of 1.2 mol CH4, 2.8 mol H2S, 0.63 mol CS2 and 0.042 mol H2 at... more
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07/07/22

What is K for a reaction if ∆G° =223.5 kJ/mol at 25.0 °C? (R = 8.314 J/mol ･ K)
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07/07/22

Chemistry Homework
Consider these reactions, where M represents a generic metal.2M(s)+6HCl(aq)⟶2MCl3(aq)+3H2(g)Δ𝐻1=−928.0 kJ HCl(g)⟶HCl(aq) Δ𝐻2=−74.8 kJ H2(g)+Cl2(g)⟶2HCl(g) Δ𝐻3=−1845.0 kJ MCl3(s)⟶MCl3(aq) ... more
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07/07/22

Enough of a monoprotic acid is dissolved in water to produce a 1.81 M solution. The pH of the resulting solution is 2.88 . Calculate the Ka for the acid.
Enough of a monoprotic acid is dissolved in water to produce a 1.811.81 M solution. The pH of the resulting solution is 2.882.88. Calculate the Ka for the acid.
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07/07/22

At STP a sample of gas with a mass of 27.3 grams occupies 8.20 L. What is the molar mass of this gas?
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07/07/22

A sample of gas is held in a 793 mL vial at 13.0 atm and 69.1 degrees Celcius. How many mol gas are there in the vial?
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07/07/22

Equilibrium Equation with Missing Concentration
The equilibrium constant Kc for the reaction of nitrogen and hydrogen to produce ammonia at a certain temperature is 6.00 ×× 10−2. Calculate the equilibrium concentration of ammonia if the... more
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07/06/22

chemistry homework
A hot lump of 25.425.4 g of copper at an initial temperature of 62.2 °C62.2 °C is placed in 50.0 mL H2OH2O initially at 25.0 °C and allowed to reach thermal equilibrium. What is the final... more
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07/06/22

Help me solve this
You have a stock solution of glucose that has a concentration of 1.539M which you will use to prepare a series of dilutions. Preparing “Solution A”, you use 29.31mL of the stock solution and dilute... more
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07/06/22

What is the expected freezing point of this solution?
You prepared a solution by dissolving 14.927g of sodium chloride and 24.142g of potassium nitrate in470.00mL of water. What is the expected freezing point of this solution? (The freezing point... more
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07/05/22

A quantity of 18.0 mL of 1.30 M glucose solution is diluted to a new volume of 500. mL. What is the concentration, in mol/L, of the new solution?
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07/05/22

Briefly explain the differences between a solution that is an electrolyte and a solution that is a non-electrolyte.

Give one example of a solution that would be an electrolyte and a solution that is a non-electrolyte.
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07/05/22

A 8.3 mL sample of 0.180 M sulfuric acid (H2SO4) is titrated with 0.250 M NaOH Calculate the volume, in milliliters, of NaOH solution that will be used.
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07/05/22

Help me solve this problem!!!
The following are experiments performed at 85.37°C:Exp’t # [F2]initial [Cl2]initial [Br2]initial Rate initial (M/second)1. 0.363 0.294 0.312 ... more
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07/05/22

A 21.6 L cylinder contains nitrogen gas at 20.6 °C and 777 torr. How many moles of nitrogen are in the cylinder?
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07/05/22

24.9 L of gas at 48.4 °C and 675 mm Hg are heated to 175 °C, and the pressure is changed to 403 mm Hg. What is the new volume?
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07/04/22

Chemistry 102: Equilibrium: Value of Equilibrium constant
The value of ΔG° for the phosphorylation of glucose in glycolysis is 13.8 kJ/mol.What is the value of the equilibrium constant for the reaction at 25.0°C?
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07/04/22

Chemistry 102: Equilibrium: Calculate the equilibrium concentration
Formic acid, HCOOH, ionizes in water according to the following equation. The equilibrium constant is K = 1.8 × 10–4.HCOOH(aq)+H2​O(l)HCOO−(aq)+H3​O+(aq)Calculate the equilibrium concentration of... more
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07/04/22

Chemistry 102: Equilibrium: Calculate the equilibrium constant
Given the following reactions:3CD  KC​=6.12×10−4D3A+3B  KC​=7.14×10−2Calculate the value of the equilibrium constant for the following reaction.A+BC 
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07/04/22

Chemistry 102: Equilibrium: Find value of Kp
Phosgene (COCl2) is used in the manufacture of foam rubber and bulletproof glass. It is formed from carbon monoxide and chlorine in the following reaction:Cl2​(g)+CO(g)COCl2​(g)The value of Kc for... more
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07/04/22

Chemistry 102: Equilibrium: Calculate value of equilibrium constant Kp
At 2000 K the partial pressures of an equilibrium mixture of H2S, H2, and S are 0.0353 , 0.0351 , and 0.0251  atm, respectively. Calculate the value of the equilibrium constant Kp at 2000... more
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07/04/22

Chemistry 102: Equilibrium: Find Kc constant
What is the value of the equilibrium constant Kc for the following reaction at the temperature of the mixture?NO2​(g)N2​O4​(g)Analyses of an equilibrium mixture of N2O4(g) and NO2(g) gave the... more
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07/04/22

Chemistry 102: Equilibrium: Read data from a graph to determine answers
Data from the reaction below is shown in a graphical format.A--->2BWhich four statements are true at 20 μs? Choose one or more: The reaction is at equilibrium. The reaction is not at... more
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07/04/22

Help me solve this
You are studying an unknown substance that appears to be some type of sugar. You prepare a solution by dissolving 24.48g of the sugar in 160.0mL of water and find that the freezing point of the... more
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07/04/22

How many grams of sodium contain the same number of atoms as 14.9 g of potassium?
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