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Fleur

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Activity 215 Answers 15 Edits 21 Asked

@fleur Fleur asked the question 50.0 mL of 0.10 M acetic acid is titrated with 10.0 mL of 0.10 M NaOH. What's the pH of the solution? .

1 month ago · Like
@fleur Fleur commented @Ernest Z. I think the answer is the beaker with the #"HNO"_2#. I'm not sure why; your answer looks good to me! My book posed the question as a conceptual one, though, so I'm not sure if the math is necessary. on Three beakers each contain #"100 mL"# of acidic solution with a #"pH"# of #3.00#. The acids in the beakers are #"HCl"#, #"HNO"_2#, and #"HI"#. If #"50 mL"# of #"0.1 M NaOH"# is added to each beaker, which resulting solution will have the lowest #"pH"#?

1 month ago · Like
@fleur Fleur wrote an answer to What is the CRITICAL VALUE for a one-tailed t-test with df=54 and α=.05 ? .

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@fleur Fleur wrote an answer to What is the % variation in the food energy content in a packet chips? Full question in the description box. .

1 month ago · Like
@fleur Fleur wrote an answer to The time required to finish a test is normally distributed with a mean of 60 minutes and a standard deviation of 10 minutes. What is the z-Score for a student who finishes the test in 45 minutes? .

1 month ago · Like
@fleur Fleur asked the question The gravitational force exerted on a baseball is #-F_ghatj#. A pitcher throws the ball, initially at rest, with velocity #v hat i# by uniformly accelerating it along a horizontal line for a time interval of #t#. What force does he exert on the ball? .

1 month ago · Like
@fleur Fleur said thanks for an answer to Find the change in #"pH"# that occurs when #"0.010 mol NaOH"# is added to #"1.0 L"# of a buffered solution containing #"0.50 M"# acetic acid and #"0.50 M"# sodium acetate? .

2 months ago · Like
@fleur Fleur asked the question Find the change in #"pH"# that occurs when #"0.010 mol NaOH"# is added to #"1.0 L"# of a buffered solution containing #"0.50 M"# acetic acid and #"0.50 M"# sodium acetate? .

2 months ago · Like
@fleur Fleur asked the question Three beakers each contain #"100 mL"# of acidic solution with a #"pH"# of #3.00#. The acids in the beakers are #"HCl"#, #"HNO"_2#, and #"HI"#. If #"50 mL"# of #"0.1 M NaOH"# is added to each beaker, which resulting solution will have the lowest #"pH"#? .

2 months ago · Like
@fleur Fleur updated the answer to How do you simplify #sqrt(a^2)#? .

2 months ago · Like
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