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- 1 Top khủng long 16 how many moles of naoh were necessary to reach the equivalence point choose the closest answer tuyệt nhất 2022
- 2 1. Question #f89b4 | Socratic
- 3 2. How do I find the moles of NaOH required to reach the …
- 4 3. Solved For this specific titration, we took 52mL of NaOH …
- 5 4. Chem 2 lab Flashcards | Quizlet
- 6 5. Lab 10 Quiz Flashcards | Quizlet
- 7 6. Chemistry Lab Flashcards | Quizlet
- 8 7. Titration of Strong and Weak Acids Lab Flashcards | Quizlet
- 9 8. How many moles of NaOH are present in 19.0 mL of …
- 10 9. How many moles of NaOH were necessary to reach the …
- 11 10. lab 10: Titration of Strong and Weak Acids Flashcards – Quizlet
- 12 11. What volume of NaOH is needed to reach the end point of the
- 13 12. SOLVED:EXPERIMENT 2: How many mL of NaOH Were dispensed …
- 14 13. The correct answer is pale pink question 7 correct
- 15 14. A 3984 ml b 907 ml c 1363 ml d 4093 ml 13 how many ml
Top khủng long 16 how many moles of naoh were necessary to reach the equivalence point choose the closest answer tuyệt nhất 2022
Duới đây là các thông tin và kiến thức về chủ đề how many moles of naoh were necessary to reach the equivalence point choose the closest answer hay nhất khủng long do chính tay đội ngũ chúng tôi biên soạn và tổng hợp:
1. Question #f89b4 | Socratic
Tác giả: khủng long socratic.org
Ngày đăng khủng long : 9/2/2021
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Tóm tắt: khủng long Here’s what I got. Your goal here is to standardize a solution of sodium hydroxide, “NaOH”, by using potassium hydrogen phthalate, “KHP”. Your starting point here is the balanced chemical equation for this neutralization reaction “KHP”_text((aq]) + “NaOH”_text((aq]) -> “KNaP”_text((aq]) + “H”_2″O”_text((l]) The important thing to notice here is that you have a 1:1 mole ratio between the two reactants. This tells you that at you can reach the equivalence point by reacting equal number of moles of “KHP” and of “NaOH”. You start with “0.5100 g” of “KHP”. To get the molar amount of acid used for the experiment, use its molar mass 0.5100color(red)(cancel(color(black)(“g”))) * overbrace(“1 mole KHP”/(204.22color(red)(cancel(color(black)(“g”)))))^(color(purple)(“molar mass of KHP”)) = “0.0024973 moles KHP” So, you know that at equivalence point, the reaction will consume 0.0024973 moles of “KHP” and 0.0024973 moles of “NaOH”, since that’s what the 1:1 mole ratio tells you. As you know, molarity is defined as moles of solute per liters of solution. color(blue)(|bar(ul(color(white)(a/a)c = n_”solute”/V_”solution”color(white)(a/a)|))) You know how many moles of sodium hydroxide were needed to reach the equivalence point, and the volume of sodium hydroxide solution that delivered that many moles to the reaction. This means that you can calculate its actual molarity by dividing the two – do not forget to convert the volume from milliliters to liters by using the conversion factor “1 L” = 10^3″mL” In your case, you will have [“NaOH”] = “0.0024973 moles”/(31.70 * 10^(-3)”L”) = color(green)(|bar(ul(color(white)(a/a)”0.07878 M”color(white)(a/a)|))) As you can see, the actual molarity of the solution you prepared is relatively small compared with your target of “0.100 M”. You can calculate the percent error by using the formula color(blue)(“% error” = (|”approximate value” – “exact value”|)/”exact value” xx 100) In your case, you will get “% error” = (|0.07878 – 0.100|)/0.100 xx 100 = 21.22% This is characteristic of a major error in your experiment. My guess is that you allowed too much sodium hydroxide to react with the acid, which would cause the molarity of the solution to appear to be smaller than in reality. If you’re using phenolphthalein as your indicator, an excess of sodium hydroxide would cause the solution to be a brighter shade of pink than it should be at equivalence point.
Khớp với kết quả khủng long tìm kiếm: …
2. How do I find the moles of NaOH required to reach the …
Tác giả: khủng long chemistry.stackexchange.com
Ngày đăng khủng long : 10/8/2021
Xếp hạng khủng long : khủng long 4 ⭐ ( 99251 lượt đánh giá khủng long )
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Tóm tắt: khủng long For each trial with the unknown acid, calculate the following:
a) Moles of $ce{NaOH}$ required to reach the equivalence point.
I need help with part A. I have already solved and figured out theKhớp với kết quả khủng long tìm kiếm: 2017-03-28 · Assuming you are titrating a monoprotic acid, the moles of acid and base should be the same at the equivalence point. To find the moles of base used to reach equivalence, you simply need to multiply the volume of base you added to reach equivalence by the molarity of the base (which you determined from your standardization runs)….
3. Solved For this specific titration, we took 52mL of NaOH …
Tác giả: khủng long www.chegg.com
Ngày đăng khủng long : 20/6/2021
Xếp hạng khủng long : khủng long 5 ⭐ ( 66482 lượt đánh giá khủng long )
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Tóm tắt: khủng long Bài viết về Solved For this specific titration, we took 52mL of NaOH …. Đang cập nhật…
Khớp với kết quả khủng long tìm kiếm: Transcribed image text: EXPERIMENT 2: How many moles of NaOH were necessary to reach the equivalence point? Choose the closest answer. Choose the closest answer. Select one: a. 3.26 x 10-4 moles ob. 9.09 x 104 moles c. 4.67 102 moles O d. 5.02 x 10 moles…
4. Chem 2 lab Flashcards | Quizlet
Tác giả: khủng long quizlet.com
Ngày đăng khủng long : 13/1/2021
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Tóm tắt: khủng long Bài viết về Chem 2 lab Flashcards | Quizlet. Đang cập nhật…
Khớp với kết quả khủng long tìm kiếm: EXPERIMENT 2: How many moles of NaOH were necessary to reach the equivalence point? Choose the closest answer. The molarity of the NaOH solution would have been half what you expected. Suppose that the NaOH sitting on the shelf had absorbed 1 g of water for every 1 g of NaOH. How would this have affected your results…
5. Lab 10 Quiz Flashcards | Quizlet
Tác giả: khủng long quizlet.com
Ngày đăng khủng long : 3/3/2021
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Tóm tắt: khủng long Bài viết về Lab 10 Quiz Flashcards | Quizlet. Đang cập nhật…
Khớp với kết quả khủng long tìm kiếm: …
6. Chemistry Lab Flashcards | Quizlet
Tác giả: khủng long quizlet.com
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Tóm tắt: khủng long Bài viết về Chemistry Lab Flashcards | Quizlet. Đang cập nhật…
Khớp với kết quả khủng long tìm kiếm: Choose the closest answer. 0.213 M Suppose 15.00 mL of a solution of a monoprotic strong acid of unknown concentration requires 12.80 mL of a solution of 0.250 M NaOH to reach the end point. What is the molarity of the strong acid? 4 – 6. Below is a graph of pH as a function of the number of mL of NaOH added during a weak acid titration….
7. Titration of Strong and Weak Acids Lab Flashcards | Quizlet
Tác giả: khủng long quizlet.com
Ngày đăng khủng long : 1/3/2021
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Tóm tắt: khủng long Bài viết về Titration of Strong and Weak Acids Lab Flashcards | Quizlet. Đang cập nhật…
Khớp với kết quả khủng long tìm kiếm: At the equivalence point for the HCl solution, how many moles of 1.00 M NaOH were added to the flask? Choose the closest answer. A. 7.22 x 10⁻³ moles B. 9.73 x 10⁻³ moles C. 6.11 x 10⁻³ moles D. 2.85 x 10⁻³ moles…
8. How many moles of NaOH are present in 19.0 mL of …
Tác giả: khủng long socratic.org
Ngày đăng khủng long : 21/3/2021
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Tóm tắt: khủng long “0.00285 moles” Molarity is defined as moles of solute, which in your case is sodium hydroxide, “NaOH”, divided by liters of solution. color(blue)(“molarity” = “moles of solute”/”liters of solution”) SImply put, a “1-M” solution will have 1 mole of solute dissolved in 1 liter of solution. Now, you know that your solution has a molarity of “0.150 M” and a volume of “19.0 mL”. Since the volume is much smaller than “1 L”, you can expect to have fewer moles of sodium hydroxide in this sample than you would have had in a full liter of solution. Convert the volume of the sample from mililiters to liters by using the conversion factor “1 L” = 10^3″mL” to get 19.0color(red)(cancel(color(black)(“mL”))) * “1 L”/(10^3color(red)(cancel(color(black)(“mL”)))) = 19.0 * 10^(-3)”L” This means that the number of moles of solute you get in this sample will be equal to color(blue)(c = n/V implies n = c * V) n = 0.150″moles”/color(red)(cancel(color(black)(“L”))) * 19.0 * 10^(-3)color(red)(cancel(color(black)(“L”))) = color(green)(“0.00285 moles NaOH”)
Khớp với kết quả khủng long tìm kiếm: 2015-11-06 · Convert the volume of the sample from mililiters to liters by using the conversion factor 1 L = 103mL to get 19.0mL ⋅ 1 L 103mL = 19.0 ⋅ 10−3L This means that the number of moles of solute you get in this sample will be equal to c = n V ⇒ n = c ⋅ V n = 0.150 moles L ⋅ 19.0 ⋅ 10−3L = 0.00285 moles NaOH Answer link…
9. How many moles of NaOH were necessary to reach the …
Tác giả: khủng long www.coursehero.com
Ngày đăng khủng long : 21/1/2021
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Tóm tắt: khủng long Bài viết về How many moles of NaOH were necessary to reach the …. Đang cập nhật…
Khớp với kết quả khủng long tìm kiếm: How many moles of NaOH were necessary to reach the equivalence point? Choose the closest answer. Select one: a. 3.26 × 10-1 moles. b. 9.09 × 10-4 moles. c. 4.67 × 10-2 moles. d. 5.02 × 10-8 moles. Details : average volume of NaOH solution dispensed (mL) 9.00 mL (8.966) average number of moles of NaOH dispensed. 0.00897 mol. average concentration of the acid (mol/L)…
10. lab 10: Titration of Strong and Weak Acids Flashcards – Quizlet
Tác giả: khủng long quizlet.com
Ngày đăng khủng long : 27/4/2021
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Tóm tắt: khủng long Bài viết về lab 10: Titration of Strong and Weak Acids Flashcards – Quizlet. Đang cập nhật…
Khớp với kết quả khủng long tìm kiếm: Choose the closest answer. 46.00 mL (Lab 10) The pH equals the pKa when half of the volume of NaOH necessary to reach the equivalence point has been added. Based on the number of mL of NaOH necessary to reach the equivalence point, how many mL of NaOH have been dispensed at the point where the pH = pKa? 2.00 mL…
11. What volume of NaOH is needed to reach the end point of the
Tác giả: khủng long www.quora.com
Ngày đăng khủng long : 13/2/2021
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Tóm tắt: khủng long Answer (1 of 3): It really depends on exactly what analytical process you’re trying to do. You can’t just ask a question like this, it will be different for every process. And…shockingly, different every time unless you’re analysing samples of very consistent material, but if it requires analysis…
Khớp với kết quả khủng long tìm kiếm: 20 ml of an oxalic acid solution (H2C2O4) 0.02M was used to titrate NaOH solution.10ml of the NaOH solution was required to reach the equivalence point. What is the concentration of the NaOH solution? 12 points? Do I get the 12 points? Hint: volume1 x M1 = volume2 x M2 Solve equation for M2 171 views View upvotes Promoted by The Penny Hoarder…
12. SOLVED:EXPERIMENT 2: How many mL of NaOH Were dispensed …
Tác giả: khủng long www.numerade.com
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Tóm tắt: khủng long and this problem. We’re given a lot of information about a base in an acid and asked to calculate the polarity of the asset. To this end, we’re gonna use the e…
Khớp với kết quả khủng long tìm kiếm: and this problem. We’re given a lot of information about a base in an acid and asked to calculate the polarity of the asset. To this end, we’re gonna use the e……
13. The correct answer is pale pink question 7 correct
Tác giả: khủng long www.coursehero.com
Ngày đăng khủng long : 24/6/2021
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Tóm tắt: khủng long Bài viết về The correct answer is pale pink question 7 correct. Đang cập nhật…
Khớp với kết quả khủng long tìm kiếm: Choose the closest answer. Select one: 0.0200 M 1.00 M0.200 M. 1. 00 M 0.200 M. 0.002moles. 20/1000=0.02L. 0.02L*0.1M=0.002moles. MC – Standardization of an NaOH Solution 0.0998 M Feedback Your answer is correct….
14. A 3984 ml b 907 ml c 1363 ml d 4093 ml 13 how many ml
Tác giả: khủng long www.coursehero.com
Ngày đăng khủng long : 28/6/2021
Xếp hạng khủng long : khủng long 5 ⭐ ( 23378 lượt đánh giá khủng long )
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Tóm tắt: khủng long Bài viết về A 3984 ml b 907 ml c 1363 ml d 4093 ml 13 how many ml. Đang cập nhật…
Khớp với kết quả khủng long tìm kiếm: A. 15 mL B. 10 mL C. 25 mL D. 100 mL 14. How many moles of NaOH were necessary to reach the equivalence point? Choose the closest answer. A. 9.09 × 10-4moles B. 5.02 × 10-8moles C. 3.26 × 10-1moles D. 4.67 × 10-2moles A. 9.09 × 10 – 4 moles 15. Suppose that the NaOH sitting on the shelf had absorbed 1 g of water for every 1 g of NaOH….
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