![9y-phshder/index.html add drop Red litmus B paper litmus pper Universal indicator pH: 9 [H): 109 [OH-] 10%M T! 102 10-7 L-10-](http://img.homeworklib.com/questions/68d0d310-33b6-11eb-9bfe-5b3af618d303.png?x-oss-process=image/resize,w_560)
Homework Answers
Definition pH : is a measure of hydrogen ion concentration [ H+] a measure of the acidity or alkalinity of a solution. The scale usually range from 0 to 14.
Formula pH: pH = - log10 [ H+]
A) pH = - log [ H+]
13 = - log [ H+]
[H+] = 10 -13
applying Kw = [H+] [OH-]
10-14 = 10-13 [OH-]
[OH-] = 10-1
B) pH =- log 10-7 = 7
Kw = [H+] [OH-]
10-14 = 10-7 [OH-]
[OH-] = 10-7
C) Kw = [H+] [OH-]
10-14 = [H+] 10-13
[H+] = 10-1
pH = - log10 [ H+] = - log10 10-1 = 1
Add Answer to:
Assignment Score: 86.9% Resources Lx Give Up? 8 Hestion 24 of 29 Hint > Use the...
Highest pH Lowest pH < Assignment Score: 986/2300 Resources Ex Give Up? Hint < Question 17...
Highest pH Lowest pH
< Assignment Score: 986/2300 Resources Ex Give Up? Hint < Question 17 of 23 > Use the pH interactive to order the solutions by pH. Highest pH [OH-] = 10-11 m universal indicator turns the solution red red and blue litmus paper stay the same color universal indicator turns the solution violet H+ = 10-11 M 1096) Lowest pH Answer Bank -1096 -100) 00 delete-
o Assignment Score! 1090/2000 Resources Ex Give Up? Feedba < Question 12 of 20 > Calculate...
o Assignment Score! 1090/2000 Resources Ex Give Up? Feedba < Question 12 of 20 > Calculate the hydroxide ion concentration, OH), for a solution with a pH of 7.88. Tess [OH-] = 6.12 6.12 DO 100 0/100 0/100 about us careers privacy policy terms of use contact us help
Assignment Score: 1361/2900 Resources Give Up? Feedback Resume < Question 15 of 29 > Attempt 1...
Assignment Score: 1361/2900 Resources Give Up? Feedback Resume < Question 15 of 29 > Attempt 1 What is the hybridization of phosphorus in each of the molecules or ions? ооооо OOOOO o spe about us Careers privacy policy terms of use contact us help MacBook Air Assignment Score: Question 15 of 29 > Attempt 1 - Ospd Op' O spd 10 sp² Tooo 10 sp²d Osp about us Careers privacy policy terms of use | contact us MacBook Air Neuson...
LI00 2400 Resources L Give Up? Hint Question 18 of 24 > For the reaction 2...
LI00 2400 Resources L Give Up? Hint Question 18 of 24 > For the reaction 2 HCI+Ca(OH)2 CaCl, + 2 H20 how many grams of calcium chloride, CaCl2, are produced from 50.5 g of hydrochloric acid, HCI? mass of calcium chloride: 51.12 Enter numeric value contact us help terms of use careers privacy policy about us
estion 14 of 65 > Use the pH lab to rank the solutions by pH. Highest...
estion 14 of 65 > Use the pH lab to rank the solutions by pH. Highest pH Lowest pH Answer Bank red and blue litmus paper stay the same color [OH-] = 10-'M universal indicator turns the solution violet [H+] = 10-'M universal indicator turns the solution red stion 15 of 65 > A buffer is prepared by mixing hypochlorous acid (HCIO) and sodium hypochlorite (Nacio). If a strong base, such as NaOH, is added to this buffer, which buffer...
Assignment Score: 1879/2500 Resources by Give Up? Hint Check Answer Question 24 of 25 > Predict...
Assignment Score: 1879/2500 Resources by Give Up? Hint Check Answer Question 24 of 25 > Predict whether the following reactions will be exothermic or endothermic. Reaction A. N (9) + 3H2(g) — 2NH3(g) Reaction B. S(g) + O2(g) - SO,(g) Reaction C. 2H,0(g) — 2H,(9) +0,(9) Reaction D. 2F(8) - 5,() Bond H-H NEN O.O F-F H-N H-O AH°(kJ/mol) 432 942 494 155 386 459 S=0 522 Which reaction(s) are endothermic? Which reaction(s) are exothermic? OA OA OB oc OB...
< Assignment Score: 4.2% Resources D Give Up Hint Check Answer < Question 23 of 24...
< Assignment Score: 4.2% Resources D Give Up Hint Check Answer < Question 23 of 24 > Ninhydrin is commonly used to detect fingerprints because it produces a purple color when it reacts with the amino acids in the sweat from a person's fingers, resulting in a visible fingerprint. Thin-layer chromatography (TLC) was used to preliminarily determine which amino acids were present in a sweat sample taken from a crime scene. The results after spraying the chromatogram with ninhydrin are...
Assignment Score: 29.5% Resources Cx Give Up? Hint Check Answer Question 4 of 10 > Attempt...
Assignment Score: 29.5% Resources Cx Give Up? Hint Check Answer Question 4 of 10 > Attempt 2 A 23.63 mL volume of 0.0956 M NaOH was used to titrate 25.0 mL of a strong monoprotic acid to the equivalence point. What was the pH at the equivalence point? O O O It cannot be determined without completing the titration. 7 greater than 7 o less than 7 About us Careers Privacy policy terms of use
CHM130LL Lab 12 - Exploring Indicators Name: MEID Complete the following items by typing into the...
CHM130LL Lab 12 - Exploring Indicators Name: MEID Complete the following items by typing into the text box provided. The boxes will increase in size if additional space is necessary. Please be sure to save all your work as an MS Word document to submit properly. Part I - Calibration of Red Cabbage Juice Indicator A. Data Table 1: Calibration of Red Cabbage Juice Indicator with a Base Fill in the data table. Since your goal is to add sufficient...
Assignment Score: 81.5% Resources [ Give Up? Hint Check Answer KA TY Question 16 of 17...
Assignment Score: 81.5% Resources [ Give Up? Hint Check Answer KA TY Question 16 of 17 > Suppose Gabe, an elementary school student, has just finished dinner with his mother, Judy. Eyeing the nearby cookie jar, Gabe asks his mother if he can have a cookie for dessert. She tells Gabe that she needs to check his backpack to make sure that he finished his homework. Gabe cannot remember where he left his backpack, but he knows for sure that...
Highest pH Lowest pH
< Assignment Score: 986/2300 Resources Ex Give Up? Hint < Question 17 of 23 > Use the pH interactive to order the solutions by pH. Highest pH [OH-] = 10-11 m universal indicator turns the solution red red and blue litmus paper stay the same color universal indicator turns the solution violet H+ = 10-11 M 1096) Lowest pH Answer Bank -1096 -100) 00 delete-
o Assignment Score! 1090/2000 Resources Ex Give Up? Feedba < Question 12 of 20 > Calculate the hydroxide ion concentration, OH), for a solution with a pH of 7.88. Tess [OH-] = 6.12 6.12 DO 100 0/100 0/100 about us careers privacy policy terms of use contact us help
Assignment Score: 1361/2900 Resources Give Up? Feedback Resume < Question 15 of 29 > Attempt 1 What is the hybridization of phosphorus in each of the molecules or ions? ооооо OOOOO o spe about us Careers privacy policy terms of use contact us help MacBook Air Assignment Score: Question 15 of 29 > Attempt 1 - Ospd Op' O spd 10 sp² Tooo 10 sp²d Osp about us Careers privacy policy terms of use | contact us MacBook Air Neuson...
LI00 2400 Resources L Give Up? Hint Question 18 of 24 > For the reaction 2 HCI+Ca(OH)2 CaCl, + 2 H20 how many grams of calcium chloride, CaCl2, are produced from 50.5 g of hydrochloric acid, HCI? mass of calcium chloride: 51.12 Enter numeric value contact us help terms of use careers privacy policy about us
estion 14 of 65 > Use the pH lab to rank the solutions by pH. Highest pH Lowest pH Answer Bank red and blue litmus paper stay the same color [OH-] = 10-'M universal indicator turns the solution violet [H+] = 10-'M universal indicator turns the solution red stion 15 of 65 > A buffer is prepared by mixing hypochlorous acid (HCIO) and sodium hypochlorite (Nacio). If a strong base, such as NaOH, is added to this buffer, which buffer...
Assignment Score: 1879/2500 Resources by Give Up? Hint Check Answer Question 24 of 25 > Predict whether the following reactions will be exothermic or endothermic. Reaction A. N (9) + 3H2(g) — 2NH3(g) Reaction B. S(g) + O2(g) - SO,(g) Reaction C. 2H,0(g) — 2H,(9) +0,(9) Reaction D. 2F(8) - 5,() Bond H-H NEN O.O F-F H-N H-O AH°(kJ/mol) 432 942 494 155 386 459 S=0 522 Which reaction(s) are endothermic? Which reaction(s) are exothermic? OA OA OB oc OB...
< Assignment Score: 4.2% Resources D Give Up Hint Check Answer < Question 23 of 24 > Ninhydrin is commonly used to detect fingerprints because it produces a purple color when it reacts with the amino acids in the sweat from a person's fingers, resulting in a visible fingerprint. Thin-layer chromatography (TLC) was used to preliminarily determine which amino acids were present in a sweat sample taken from a crime scene. The results after spraying the chromatogram with ninhydrin are...
Assignment Score: 29.5% Resources Cx Give Up? Hint Check Answer Question 4 of 10 > Attempt 2 A 23.63 mL volume of 0.0956 M NaOH was used to titrate 25.0 mL of a strong monoprotic acid to the equivalence point. What was the pH at the equivalence point? O O O It cannot be determined without completing the titration. 7 greater than 7 o less than 7 About us Careers Privacy policy terms of use
CHM130LL Lab 12 - Exploring Indicators Name: MEID Complete the following items by typing into the text box provided. The boxes will increase in size if additional space is necessary. Please be sure to save all your work as an MS Word document to submit properly. Part I - Calibration of Red Cabbage Juice Indicator A. Data Table 1: Calibration of Red Cabbage Juice Indicator with a Base Fill in the data table. Since your goal is to add sufficient...
Assignment Score: 81.5% Resources [ Give Up? Hint Check Answer KA TY Question 16 of 17 > Suppose Gabe, an elementary school student, has just finished dinner with his mother, Judy. Eyeing the nearby cookie jar, Gabe asks his mother if he can have a cookie for dessert. She tells Gabe that she needs to check his backpack to make sure that he finished his homework. Gabe cannot remember where he left his backpack, but he knows for sure that...
Most questions answered within 3 hours.
-
Suppose N packets are sent,
and each packet arrives at rate of L/2R to a link....
asked 11 minutes ago -
17. Show the steps involved in reduction of the ketone in fatty
acid synthesis. Which cofactor...
asked 13 minutes ago -
5.61 g of octane, C8H18, reacts with excess oxygen in a bomb
calorimeter. The heat capacity...
asked 17 minutes ago -
The velocity field of a flow is given by V = (2+1) x
y2 i +...
asked 26 minutes ago -
(EPS with
Convertible Bonds) On June 1, 2012, Bluhm Company and
Amanar Company merged to form...
asked 23 minutes ago -
2. Discuss why the study exemplifies one that agrees with The
American Psychological Association’s (APA) Ethical...
asked 27 minutes ago -
Without considering the following capital gains and losses,
Charlene, who is single, has a taxable income...
asked 35 minutes ago -
1a. The __________ functional group often triggers our sense of
smell.
1b. The geometry around a...
asked 48 minutes ago -
A uniform plank of length 2.00 m and mass 34.0 kg is supported
by three ropes,...
asked 49 minutes ago -
Suppose a floor on a hospital has 12 physicians at any given
time. You are brought...
asked 1 hour ago -
Compartmentalization
in eukaryotic cells facilitates chemical reactions happening faster
due to... Select all
Substrates needed for...
asked 49 minutes ago -
The deltaH for the solution process when solid sodium
hydroxide dissolves in water is 44.4 kJ/mol....
asked 52 minutes ago