steps of solving pleaseHomework Answers
ΔTf = i*Kf*m
ΔTf is the depression in freezing point
ΔTf will be maximum when i is maximum Since molality, m is same for all.
so, lowest freezing point is for that solution which has higher value of i
i for BaCl2 is 3 as it dissociates into 1 Ba2+ and 2 Cl-
CO(NH2)2 is non electrolyte. So, i=1
i for CaSO4 is 2
i for NH4NO3 is 2
i for CH3COOH is less than 2 as it is weak electrolyte.
i is maximum for BaCl2.
So, it will have lowest freezing point
Answer: a
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steps of solving please
33. Which of the following solutes, dissolved in 1000 g of water,...
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Which of the following solutes, dissolved in 1000 g of water, would provide a solution with the lowest freezing point? 0.045 mol of barium chloride, MgCl2 0.045 mol of ammonium nitrate, NH Br 0.045 mol of acetic acid, CH3COOH 0.045 mol of urea, CO(CH3)2 0.045 mol of calcium sulfate, BaSO4
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this is part a,b,c of one question. please answer all parts or
leave to another tutor.
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When you write the answers, please write the page number for which the question is located....
When you write the answers, please write the page number for
which the question is located. Thank you!
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Please help with solving Question 1 (A-C) Thank you! Unless otherwise specified in the problem, you...
Please help with solving Question 1 (A-C) Thank you!
Unless otherwise specified in the problem, you may assume that all solutions are at 25°C. 1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH, requiring 17.47 mL to reach the second equivalence point. a. Calculate the molarity of carbonic acid and bicarbonate in the original buffer. Carbonic acid: Bicarbonate: b. Calculate the pH of the solution after a total of 100.0 mL of 0.2857...
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please help me with all the steps.
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Please I need help on this. I'm so lost 1. Acetic acid (H)CO2H) has k, =...
Please I need help on this. I'm so lost
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Which of the following solutes, dissolved in 1000 g of water, would provide a solution with the lowest freezing point? 0.045 mol of barium chloride, MgCl2 0.045 mol of ammonium nitrate, NH Br 0.045 mol of acetic acid, CH3COOH 0.045 mol of urea, CO(CH3)2 0.045 mol of calcium sulfate, BaSO4
this is part a,b,c of one question. please answer all parts or
leave to another tutor.
Which of the following aqueous solutions are good buffer systems? 0.14 M acetic acid + 0.20 M potassium acetate 0.16 M calcium hydroxide + 0.22 M calcium bromide 0.29 M hydrobromic acid + 0.16 M potassium bromide 0.33 M ammonia + 0.32 M ammonium nitrate 0.38 M barium chloride + 0.26 M barium perchlorate A buffer solution is made that is 0.320 M in...
When you write the answers, please write the page number for
which the question is located. Thank you!
Experiment 8 Name: Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of cach reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms...
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Please help with solving Question 1 (A-C) Thank you!
Unless otherwise specified in the problem, you may assume that all solutions are at 25°C. 1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH, requiring 17.47 mL to reach the second equivalence point. a. Calculate the molarity of carbonic acid and bicarbonate in the original buffer. Carbonic acid: Bicarbonate: b. Calculate the pH of the solution after a total of 100.0 mL of 0.2857...
please help me with all the steps.
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Please I need help on this. I'm so lost
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