Given the balanced reaction A + 3B = 2C, calculate the entropy change of the universe if: T = 25 deg C A and B are pure gases standard enthalpy change of formation of C = -4600 J/mol entropy change of the system = -0.2 kJ/K

Q: Identify the Van't Hoff Factor of BaCl2 in solution

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A: Given that, HA ----> H+ + A-  [HA] = 0.11M , pH=4.80  Then,  

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A: Organomagnesium compound are commonly known as Grignard reagent which are used for formation of C-C ...

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A: Answer: Depression in freezing point and elevation in boiling point, both are colligation properties...

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Q: What is the pOH of a 0.0027 M Ba(OH)2 solution?

A: Given: Concentration of Ba(OH)2 = 0.0027 M.  

Q: What is the hydronium ion concentration in 0.275 M nitrous acid? Ka= 7.1x10^-4

A: We have to predict the hydronium ion concentration.  

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Q: What does amphoteric mean? Group of answer choices The substance has a negligible conjugate base. Th...

A: The word amphoteric comes from the Greek word amphoteros or amphoteroi meaning "each or both of two"...

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Q: Determine the mass in grams of Li+ (6.941 g/mol) in 25.0 g of Li2SO4 (109.94 g/mol).   8.10 g   3....

A: Given: Mass of Li2SO4 = 25.0 g.  

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A: The given information is: Density of water (36.0 °C)= 0.9936870 g/cm3. Density of water (37.0 °C)= 0...

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A: Given: Initial temperature is 0.0 oC  

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Q: 25.0 ml of 0.600M hypobromous acid, HBrO, is titrated with 0.400M sodium hydroxide, NaOH. Calculate ...

A: Given 25.0 ml of 0.600M hypobromous acid, HBrO, is titrated with 0.400M sodium hydroxide,   We have ...

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Q: 3. Gold is very valuable because it does not oxidize easily. It can be oxidized by reacting it with ...

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A: The solution is given below - 

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A: Given: Concentration of AgNO3 = 0.0522 M  

Q: = 850.0 nM. What initial concentration of the drug 17. A certain drug binds to a protein with Kd wou...

A: Given: Kd = 850.0 nM = 0.85 μM Fraction of binding, θ = 0.95 (95% given)

Q: I don't understand this problem! Please help! The question is: In the following balanced chemical re...

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Q: What is the hydronium ion concentration in 0.275 M nitrous acid? Ka= 7.1x10^-4

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Q: Part A Consider the reaction: N2(9) + 3 H2 (g) =2 NH3 (g) Complete the table. Assume that all partia...

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Q: What mass of Ba(NO3)2 (261.34 g/mol) is needed to convert 2.33 g of NaIO3 (197.89 g/mol) to Ba(IO3)2

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Q: Collected Volume sodium carbonate (mL) 98.0 Molarity sodium carbonate (M) 0.20 Volume calcium chlori...

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Q: Consider the structure for 2,3-dimethylhexane (shown in the box below). Sighting down the bond indic...

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Q: What is Keq for the two possible chair conformations? (cis-1,2-dimethylcyclohexane.) Explain how you...

A: Here we have to determine Keq value of two possible chair conformation cis-1,2-dimethylcyclohexane. ...

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Q: solid

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Q: In order to form Ba(IO3)2, 500 mL of 0.5000 M Ba(NO3)2 was mixed with 500 mL of 0.0500 M NaIO3. Ksp...

A: Given: Concentration of Ba(NO3)2 taken = 0.500 M Concentration of NaIO3 taken = 0.0500 M Volume of B...

Q: A solution of a weak acid was tested with the following indicators and the colors noted: Methyl Viol...

A: Methyl Violet - violet : Therefore, pH > 1.7 Thymol blue - Yellow : Therefore,  pH > 2.8 Methy...

Q: Determine the volume occupied by 88 grams of ethane (C2 H6) gas at STP 全 T 面 1 Upload files

A: Mass of ethane = 88 g 

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Q: The reaction quotient for a system is 7.2 × 102. If the equilibrium constant for the system is 36, w...

A: Given, reaction quotient, Q = 7.2 × 102 equilibrium constant, Keq = 36 Q > Keq