Homework Answers
HCl(aq) + KOH(aq) ----------------> KCl(aq) + H2O(l)
1 mole 1 mole
HCl KOH
M1 = M2 = 4.96*10^-2M
V1 = 11.9ml V2 = 35.3ml
n1 = 1 n2 = 1
M1V1/n1 = M2V2/n2
M1 = M2V2n1/V1n2
= 4.96*10^-2 *35.3*1/11.9*1 = 0.147M
The molarity of HCl = 0.147M
part-B
2HClO4(aq) + Ba(OH)2(aq) -----------------> Ba(ClO4)2(aq) + 2H2O(l)
2 mole 1mole
HClO4 Ba(OH)2
M1= 0.326M M2 =
V1 = 15.7ml V2 = 30.1ml
n1 = 2 n2 = 1
M1V1/n1 = M2V2/n2
M2 = M1V1n2/V2n1
= 0.326*15.7*1/(30.1*2)
= 0.085 M
The molarity of Ba(OH)2 = 0.085M
part-C
PH = PKa + log[CN^-]/[HCN]
9.12 = 9.4 + log[CN^-]/[HCN]
log[CN^-]/[HCN] = 9.12-9.4
log[CN^-]/[HCN] = -0.28
[CN^-]/[HCN] = 0.525/1
part-D
PH = PKa + log[HCO3^-]/[H2CO3]
6.18 = 6.38 + log[HCO3^-]/[H2CO3]
log[HCO3^-]/[H2CO3] = 6.18-6.38
[HCO3^-]/[H2CO3] = 0.63/1
Add Answer to:
take req Use the References to access important values if needed for this question The molarity...
Use the References to access important values if needed for this question. What volume of a...
Use the References to access important values if needed for this question. What volume of a 0.150 M sodium hydroxide solution is required to neutralize 26.7 mL of a 0.224 M perchloric acid solution? mL sodium hydroxide Submit Answer Retry Entire Group 2 more group attempts remaining What volume of a 0.257 M hydrochloric acid solution is required to neutralize 29.0 mL of a 0.150 M sodium hydroxide solution? mL hydrochloric acid Submit Answer Retry Entire Group 2 more group...
Use the References to access important values if needed for this question. A 11.0 g sample...
Use the References to access important values if needed for this question. A 11.0 g sample of an aqueous solution of perchloric acid contains an unknown amount of the acid. If 26.6 mL of 0.298 M barium hydroxide are required to neutralize the perchloric acid, what is the percent by mass of perchloric acid in the mixture? % by mass Submit Answer Retry Entire Group 9 more group attempts remaining
References) Use the References to access important values if needed for this question Use the pull-down...
References) Use the References to access important values if needed for this question Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed leave it blank If no reaction occurs leave all boxes blank and click on "Submit". Write a net ionic equation for the reaction that occurs when aqueous solutions of perchloric acid and sodium hydroxide are combined. (Use H" instead of H;0) Submit Answer Retry Entire Group 9 more group...
Use the References to access important values if needed for this question. Write the net ionic...
Use the References to access important values if needed for this question. Write the net ionic equation for the precipitation of lead(II) phosphate from aqueous solution: (Use the solubility rules provided in the OWL Preparation Page to determine the solubility of compounds) DO - Submit Answer Retry Entire Group No more group attempts remain Use the References to access important values if needed for this question Write the net ionic equation for the precipitation of cobalt(II) carbonate from aqueous solution...
TREVIEW TOPICS Use the References to access important values if needed for this question. In the...
TREVIEW TOPICS Use the References to access important values if needed for this question. In the laboratory, a student dilutes 19.1 mL of a 8.59 M perchloric acid solution to a total volume of 125.0 mL. What is the concentration of the diluted solution? Concentration M Submit Answer Retry Entire Group 9 more group attempts remaining in progress Previous Neo
Use the References to access important values if needed for this question. How many milliliters of...
Use the References to access important values if needed for this question. How many milliliters of an aqueous solution of 0.236 M nickel(II) acetate is needed to obtain 5.88 grams of the salt? mL Submit Answer Retry Entire Group 9 more group attempts remaining Use the References to access important values if needed for this question. In the laboratory you dissolve 14.1 g of sodium bromide in a volumetric flask and add water to a total volume of 125 ml....
Use the References to access important values if needed for this question A 14.0 g sample...
Use the References to access important values if needed for this question A 14.0 g sample of an aqueous solution of perchloric acid contains an unknown amount of the acid. If 22.3 mL of 0.555 M sodium hydroxide are required to neutralize the perchloric acid, what is the percent by mass of perchloric acid in the mixture % by mass Submit Answer Retry Entire Group 9 more group attempt
Use the References to access important values if needed for this question. The volume of water...
Use the References to access important values if needed for this question. The volume of water needed to dissolve 0.0661 grams of barium sulfite is L. Assume no volume change upon addition of the solid. Submit Answer Retry Entire Group 7 more group attempts remaining Use the References to access important values if needed for this question. The mass of cobalt(II) hydroxide that is dissolved in 225 mL of a saturated solution is grams. Submit Answer Retry Entire Group 7...
Use the References to access important values if needed for this question When a 18.3 ml...
Use the References to access important values if needed for this question When a 18.3 ml sample of a 0.314 M aqueous acetic acid solution is titrated with a 0.384 M aqueous sodium hydroxide solution, what is the pH at the midpoint in the titration? pH- Submit Answer Retry Entire Group 8 more group attempts remaining Previous Nerd Save and Cengage Learning Cengage Technical Support Use the References to acces important values if needed for this question. A 37.6 mL...
Use the References to access important values if needed for this question. A 14.1 g sample...
Use the References to access important values if needed for this question. A 14.1 g sample of an aqueous solution of hydrochloric acid contains an unknown amount of the acid. IF 22.5 mL of 1.22 M sodium hydroxide are required to neutralize the hydrochloric acid, what is the percent by mass of hydrochloric acid in the mixtual by mass Submit Answer Retry Entire Group 9 more group attempts remaining
Use the References to access important values if needed for this question. What volume of a 0.150 M sodium hydroxide solution is required to neutralize 26.7 mL of a 0.224 M perchloric acid solution? mL sodium hydroxide Submit Answer Retry Entire Group 2 more group attempts remaining What volume of a 0.257 M hydrochloric acid solution is required to neutralize 29.0 mL of a 0.150 M sodium hydroxide solution? mL hydrochloric acid Submit Answer Retry Entire Group 2 more group...
Use the References to access important values if needed for this question. A 11.0 g sample of an aqueous solution of perchloric acid contains an unknown amount of the acid. If 26.6 mL of 0.298 M barium hydroxide are required to neutralize the perchloric acid, what is the percent by mass of perchloric acid in the mixture? % by mass Submit Answer Retry Entire Group 9 more group attempts remaining
References) Use the References to access important values if needed for this question Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed leave it blank If no reaction occurs leave all boxes blank and click on "Submit". Write a net ionic equation for the reaction that occurs when aqueous solutions of perchloric acid and sodium hydroxide are combined. (Use H" instead of H;0) Submit Answer Retry Entire Group 9 more group...
Use the References to access important values if needed for this question. Write the net ionic equation for the precipitation of lead(II) phosphate from aqueous solution: (Use the solubility rules provided in the OWL Preparation Page to determine the solubility of compounds) DO - Submit Answer Retry Entire Group No more group attempts remain Use the References to access important values if needed for this question Write the net ionic equation for the precipitation of cobalt(II) carbonate from aqueous solution...
TREVIEW TOPICS Use the References to access important values if needed for this question. In the laboratory, a student dilutes 19.1 mL of a 8.59 M perchloric acid solution to a total volume of 125.0 mL. What is the concentration of the diluted solution? Concentration M Submit Answer Retry Entire Group 9 more group attempts remaining in progress Previous Neo
Use the References to access important values if needed for this question. How many milliliters of an aqueous solution of 0.236 M nickel(II) acetate is needed to obtain 5.88 grams of the salt? mL Submit Answer Retry Entire Group 9 more group attempts remaining Use the References to access important values if needed for this question. In the laboratory you dissolve 14.1 g of sodium bromide in a volumetric flask and add water to a total volume of 125 ml....
Use the References to access important values if needed for this question A 14.0 g sample of an aqueous solution of perchloric acid contains an unknown amount of the acid. If 22.3 mL of 0.555 M sodium hydroxide are required to neutralize the perchloric acid, what is the percent by mass of perchloric acid in the mixture % by mass Submit Answer Retry Entire Group 9 more group attempt
Use the References to access important values if needed for this question. The volume of water needed to dissolve 0.0661 grams of barium sulfite is L. Assume no volume change upon addition of the solid. Submit Answer Retry Entire Group 7 more group attempts remaining Use the References to access important values if needed for this question. The mass of cobalt(II) hydroxide that is dissolved in 225 mL of a saturated solution is grams. Submit Answer Retry Entire Group 7...
Use the References to access important values if needed for this question When a 18.3 ml sample of a 0.314 M aqueous acetic acid solution is titrated with a 0.384 M aqueous sodium hydroxide solution, what is the pH at the midpoint in the titration? pH- Submit Answer Retry Entire Group 8 more group attempts remaining Previous Nerd Save and Cengage Learning Cengage Technical Support Use the References to acces important values if needed for this question. A 37.6 mL...
Use the References to access important values if needed for this question. A 14.1 g sample of an aqueous solution of hydrochloric acid contains an unknown amount of the acid. IF 22.5 mL of 1.22 M sodium hydroxide are required to neutralize the hydrochloric acid, what is the percent by mass of hydrochloric acid in the mixtual by mass Submit Answer Retry Entire Group 9 more group attempts remaining
Most questions answered within 3 hours.
-
3. Gains from trade
Consider two neighbouring island countries called Euphoria and
Contente. They each have...
asked 34 minutes ago -
A business executive has the option to invest money in two
plans: Plan A guarantees that...
asked 2 hours ago -
Hello, can someone please help me answer this question?
How much heat is absorbed by a...
asked 2 hours ago -
. A marketing researcher conducted a survey of 25 shoppers
randomly selected at the local mall...
asked 3 hours ago -
Create an comprehensive response to the
following:
Antimicrobial agents work on a multitude of microbes (bacteria,...
asked 3 hours ago -
6.13 LAB: Step counter. Section 6.3.
A pedometer treats walking 2,000 steps as walking 1 mile....
asked 3 hours ago -
(14.2) A block of mass m = 10 kg riding on a frictionless
horizontal plane is...
asked 3 hours ago -
Use any search engine to search for articles about Starbucks
partnership with Tata Companies in India...
asked 3 hours ago -
Let’s say that for some reason Bank Excess Reserves suddenly
increase sharply. What effect would this...
asked 3 hours ago -
Given:
Curent Assets: $600,000
Total Assets: $2,600,000
Current Liabilities: $500,000
Total Liabilities: $1,700,000
What is the...
asked 3 hours ago -
1. What is a “Bankster”? What is insider trading? Why is it
illegal?
2. What is...
asked 3 hours ago -
A transverse wave on a cord is given by
D(x,t)=0.18sin(2.7x−61.0t), where Dand x are in m...
asked 3 hours ago