Not sure if this is right, pure water so its [H] squared
Kw = [H] squared so I square rooted and took the -log of this to get the pH
Homework Answers
Kw = [H+][OH-]
since water is neutral,
[H+] = [OH-]
So,
Kw = [H+][H+]
4.52*10^-15 = [H+]^2
[H+] = 6.72*10^-8 M
use:
pH = -log [H+]
= -log (6.72*10^-8)
= 7.1726
Answer: 7.173
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Not sure if this is right, pure water so its [H] squared
Kw = [H] squared...
for water (Kw) is 9.311 × 10-14 at 60 oC. Calculate the [H2O+], [OH-], pH, (8...
for water (Kw) is 9.311 × 10-14 at 60 oC. Calculate the [H2O+], [OH-], pH, (8 pts.) The ionization constant and pOH for pure water at 60°C
number 16 15. Explain why a sample of pure water at 40 °C is neutral even...
number 16
15. Explain why a sample of pure water at 40 °C is neutral even though [H3O= 1.7 x 101 1014 at 40 °C. M. Kw is 2.9 X 16. The ionization constant for water (Ky) is 2.9 x 1014 at 40 °C. Calculate [H30 ], [OH], pH, and pOH for pure water at 40 °C.
calculate equilibrium dissiociation constant of water help! We know that Kw = 1.0 x 10-14 at...
calculate equilibrium dissiociation constant of water
help!
We know that Kw = 1.0 x 10-14 at 25°C. At 37°C, the [H3O+] in pure water is 1.6 x 10"| M. Calculate the equilibrium dissociation constant of water, Kw, at this temperature. A. 2.6 x 10-14 | CNH-TT H+7: 10 x 10-14 DH = -log(11 B. 1.0 x 10-7 C. 1.0 x 10-14 [1-6x10-?][6.16 *10-8] PH= 6.79 D. 1.6 x 10-7 POH=7. 21
1- Calculating [H+] for Pure Water: In a certain acidic solution at 25 ∘C, [H+] is...
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pH operates off of a ___________ scale. The autoionization constant of water is abbreviated ________....
pH operates off of a ___________ scale. The autoionization constant of water is abbreviated ________. The molar concentration of hydronium in pure water at 25ºC has been measured to be ________. The relationship between hydronium and hydroxide in any dilute aqueous solution is represented by _________. The p in pH stands for _________. The relationship between pH and pOH is ___________. The pH value of a 1 M solution of strong acid would be...
Couldn't get the answer no matter what...Please make sure you get it right, so I can...
Couldn't get the answer no matter
what...Please make sure you get it right, so I can give you a
thumbs up!
14. + 0/1 points Previous Answers OSUniPhys1 13.4.P.040. My Notes Ask Your Teacher For the following questions, use the data found in Appendix D. /kg in your calculations. Round your answer to at least four significant figures.) Calculate the mass (in kg) of the Sun based on data for Saturn's orbit. (Use G = 6.67 x 10-11 N.m 1.986e30...
please help me solve this, i only get ONE try so please please make sure the...
please help me solve this, i only get ONE try so please please
make sure the answer is right, thanks!!
O KINETICS AND EQUILIBRIUM Deducing a rate law from initial reaction rate data Some measurements of the initial rate of a certain reaction are given in the table below. H2 initial rate of reaction 53.0 m/s 1.28 M 1.28 M 0.130 M L2] 2.30 M 0.284 M 2.30 M 6.54 M/s 5.38 MIS Use this information to write a rate...
* Im not actually sure if i got these right but really not sure about the bottom questions gender selection, the pr...
* Im not actually sure if i got these right but really not
sure about the bottom questions
gender selection, the proportion of baby girls is less than 0.5. 1 standard deviation below 0. Complete parts (a) through (h) A 0.01 significance level is used for a hypothesis test of the claim that when parents use partic ular method Assume that sample data consists of 36 girls in 81 births, so the sample statistic of a below Click here to...
need help with 7 and 8. also did I do number nine right? • Write the...
need help with 7 and 8. also did I do number nine right?
• Write the ionization cautions for the dissociation of the diprotic acid, H,C,04. called oxalic acid. The following dissociation consta owing dissociation constants were located on a scrap piece of paper near the bottle of oxalic acid in the chemical room: 6.40 X 10 and 5.91 X 102. Assign cach equation you have written one of these values and explain your reasoning. H₂C₂O4 8. Given the K,...
RUVILUULI Q. #1. The equilibrium constant for the auto-ionization of water 2H30 (I) = H3O'(aq) +...
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for water (Kw) is 9.311 × 10-14 at 60 oC. Calculate the [H2O+], [OH-], pH, (8 pts.) The ionization constant and pOH for pure water at 60°C
number 16
15. Explain why a sample of pure water at 40 °C is neutral even though [H3O= 1.7 x 101 1014 at 40 °C. M. Kw is 2.9 X 16. The ionization constant for water (Ky) is 2.9 x 1014 at 40 °C. Calculate [H30 ], [OH], pH, and pOH for pure water at 40 °C.
calculate equilibrium dissiociation constant of water
help!
We know that Kw = 1.0 x 10-14 at 25°C. At 37°C, the [H3O+] in pure water is 1.6 x 10"| M. Calculate the equilibrium dissociation constant of water, Kw, at this temperature. A. 2.6 x 10-14 | CNH-TT H+7: 10 x 10-14 DH = -log(11 B. 1.0 x 10-7 C. 1.0 x 10-14 [1-6x10-?][6.16 *10-8] PH= 6.79 D. 1.6 x 10-7 POH=7. 21
Couldn't get the answer no matter
what...Please make sure you get it right, so I can give you a
thumbs up!
14. + 0/1 points Previous Answers OSUniPhys1 13.4.P.040. My Notes Ask Your Teacher For the following questions, use the data found in Appendix D. /kg in your calculations. Round your answer to at least four significant figures.) Calculate the mass (in kg) of the Sun based on data for Saturn's orbit. (Use G = 6.67 x 10-11 N.m 1.986e30...
please help me solve this, i only get ONE try so please please
make sure the answer is right, thanks!!
O KINETICS AND EQUILIBRIUM Deducing a rate law from initial reaction rate data Some measurements of the initial rate of a certain reaction are given in the table below. H2 initial rate of reaction 53.0 m/s 1.28 M 1.28 M 0.130 M L2] 2.30 M 0.284 M 2.30 M 6.54 M/s 5.38 MIS Use this information to write a rate...
* Im not actually sure if i got these right but really not
sure about the bottom questions
gender selection, the proportion of baby girls is less than 0.5. 1 standard deviation below 0. Complete parts (a) through (h) A 0.01 significance level is used for a hypothesis test of the claim that when parents use partic ular method Assume that sample data consists of 36 girls in 81 births, so the sample statistic of a below Click here to...
need help with 7 and 8. also did I do number nine right?
• Write the ionization cautions for the dissociation of the diprotic acid, H,C,04. called oxalic acid. The following dissociation consta owing dissociation constants were located on a scrap piece of paper near the bottle of oxalic acid in the chemical room: 6.40 X 10 and 5.91 X 102. Assign cach equation you have written one of these values and explain your reasoning. H₂C₂O4 8. Given the K,...
RUVILUULI Q. #1. The equilibrium constant for the auto-ionization of water 2H30 (I) = H3O'(aq) + OH(aq) is 1.0 x 10-4 at 25°C and 3.8 x 10-14 at 40°C. Is the forward process endothermic or exothermic? Need to show your calculation. Ans: exothermic Q. #2. If you have 0.040 M solution two strong acids like HCI and H2SO, which one do you think would have behaves as stronger acids? Explain your answer with ICE table and relevant calculation. K for...
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