Calculate the pH for each of the following cases in the titration of 25.0 mL of 0.150 M pyridine, C5H5N(aq) with 0.150 M HBr(aq): (a) before addition of any HBr (b) after addition of 12.5 mL of HBr (c) after addition of 14.0 mL of HBr (d) after addition of 25.0 mL of HBr (e) after addition of 30.0 mL of HBr
In: Chemistry
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.140 M HClO(aq) with 0.140 M KOH(aq).
(a) before addition of any KOH
(b) after addition of 25.0 mL of KOH
(c) after addition of 35.0 mL of KOH
(d) after addition of 50.0 mL of KOH
(e) after addition of 60.0 mL of KOH
In: Chemistry
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.170 M HClO(aq) with 0.170 M KOH(aq).
(a) before addition of any KOH
(b) after addition of 25.0 mL of KOH
(c) after addition of 30.0 mL of KOH
(d) after addition of 50.0 mL of KOH
(e) after addition of 60.0 mL of KOH
In: Chemistry
Calculate the pH for each of the following cases in the titration of 25.0 mL of 0.100 M pyridine, C5H5N(aq) with 0.100 M HBr(aq):
(a) before addition of any HBr
(b) after addition of 12.5 mL of HBr
(c) after addition of 24.0 mL of HBr
(d) after addition of 25.0 mL of HBr
(e) after addition of 37.0 mL of HBr
In: Chemistry
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.190 M HClO(aq) with 0.190 M KOH(aq).
a) before addition of any KOH
b) after addition of 25.0 mL of KOH
c) after addition of 35.0 mL of KOH
d) after addition of 50.0 mL of KOH
e) after addition of 60.0 mL of KOH
In: Chemistry
5) A 100.0 mL sample of 0.18 M HClO4 is titrated with 0.27 M LiOH. Determine the pH of the solution
a) before the addition of any LiOH.
b) after the addition of 30.0 mL of LiOH.
c) after the addition of 50.0 mL of LiOH.
d) after the addition of 66.67 mL of LiOH (this is the equivalence point).
e) after the addition of 75.0 mL of LiOH.
In: Chemistry
Calculate the pH for each of the following cases in the titration of 25.0 mL of 0.140 M pyridine, C5H5N(aq) with 0.140 M HBr(aq): (a) before addition of any HBr (b) after addition of 12.5 mL of HBr (c) after addition of 23.0 mL of HBr (d) after addition of 25.0 mL of HBr (e) after addition of 31.0 mL of HBr
In: Chemistry
A website reported that 31% of drivers 18 and older admitted to texting while driving in 2009. In a random sample of 400 drivers 18 years and older drawn in 2010, 99 of the drivers said they texted while driving.
a. Construct a 99?% confidence interval to estimate the actual proportion of people who texted while driving in 2010.
A 99?% confidence interval to estimate the actual proportion has a lower limit of ___ and an upper limit of ___. ?(Round to three decimal places as? needed.)
In: Statistics and Probability
|
Accounts Payable |
P12,000 |
Carl, Capital |
P10,000 |
|
Accounts Receivable |
6,000 |
Supplies |
2,000 |
|
Cash |
16,000 |
Taxes Expense |
300 |
|
Computer Equip |
13,000 |
Utilities Expense |
4,000 |
|
Fees Earned |
47,000 |
Wages Expense |
21,000 |
|
Rent Expense |
6,000 |
Supplies Expense |
700 |
Prepare and income statement, statement of owner’s equity, and a balance sheet as of January 31, 2010.
In: Accounting
The residents of Vegopia spend all of their income on cauliflower, broccoli, and carrots. In 2010, they buy 100 heads of cauliflower for $200, 50 bunches of broccoli for $75, and 500 carrots for $50. In 2011, they buy 75 heads of cauliflower for $225, 80 bunches of broccoli for $120, and 500 carrots for $100. a. Calculate the price of each vegetable in each year. b. Using 2010 as the base year, calculate the CPI for each year. c. What is the inflation rate in 2011?
In: Economics