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Consider a solution of NaHA for which F=0.050 mol L−1, Ka,1=4.70×10−3 and Ka,2=1.80×10−10, find the pH of the solution. pKa1=log(Ka1)=log(4.70×10−3)=−2.32pKa2=log(Ka2)=log(1.80×10−10)=−9.74pH=1/2(pKa1+pKa2)=1/2(−2.
answered
Nov 21, 2024
Chemistry
high-school
3
votes
72.9k
views
Describe the shape of the graph of y= b* when the value of b is a positive number less than 1? Does the graph of y = x x ever hit the x-axis to the right?
answered
Oct 23, 2024
Mathematics
high-school
3
votes
94.9k
views
Determining if the rules allow for a certain kind of gameplay falls under: a) Aesthetic engagement b) Meta-interactivity c) Functional interactivity d) Technical interactivity
answered
Oct 17, 2024
Social Studies
high-school
6
votes
58.7k
views
Timothy was tasked with creating the budget for the next fiscal year. He had to create a cost-profit analysis report of all the current product lines of the company. He also had to identify avenues for
answered
Oct 15, 2024
Business
high-school
3
votes
28.4k
views
The mean family income for a random sample of 550 suburban households in Nettlesville shows that a 92 percent confidence interval is ($45,700, $59,150). Braxton is conducting a test of the null hypothesis
answered
Oct 8, 2024
Mathematics
high-school
3
votes
160k
views
Which of the following are important parts of social control in some small non western societies?
answered
Oct 4, 2024
Social Studies
high-school
2
votes
65.5k
views
If you had used the force sensors on both carts, how would the forces recorded by the red and blue carts compare when the mass of the blue cart is 500 g, and that of the red cart is 250 g? The red cart
answered
Sep 14, 2024
Physics
high-school
4
votes
71.0k
views
5 Select the correct answer from each drop-down menu. France secured access to oil during World War I and beyond by buying a majority stake in Anglo-Persian Oil Company Reset Next
answered
Sep 10, 2024
History
college
1
vote
168k
views
Someone please help me with this question How are mass and weight different?
answered
Jul 1, 2024
Physics
college
4
votes
234k
views
What are the most frequent adverse reactions of Midazolam/Versed that occur more than 10 times? 1) Nausea 2) Vomiting 3) Headache 4) Dizziness
answered
Feb 18, 2024
Medicine
college
3
votes
230k
views
Antidiuretic hormone is released by the posterior pituitary in response to increased plasma osmolality. (T/F?)
answered
Jan 10, 2024
Biology
high-school
5
votes
149k
views
Mr. Martin needs to get 20 feet up a building. To have a safe angle of ascension, it will be at the base. How long does his ladder need to be? Answers: 36 40 10 50
answered
Dec 23, 2023
Mathematics
high-school
3
votes
59.0k
views
Solve for the values of x and y.
answered
Oct 2, 2023
Mathematics
college
9
votes
177k
views
15. In trapezoid ABCD, AB - 13.BC -15, and CD-13. Altitudes BF and CE are both drawn to side AD. B 15 с (a) If altitude BF has a length of 12, then find the perimeter of trapezoid ABCD. 13 points) 13 13
answered
Sep 22, 2023
Mathematics
high-school
6
votes
205k
views
Stefan sells Jin a bicycle for 160 dollars and a helmet for 16 dollars. The total cost for Jin is 160% of what Stefan originally to buy the bike and helmet. How much did Stefan spend originally? How much
answered
Sep 20, 2023
Mathematics
high-school
5
votes
109k
views
Which excerpt from “Seventh Grade” is an example of an internal expectation? Teresa is going to be my girl this year, he promised himself as he left the gym full of students in their new fall clothes.
answered
Sep 10, 2023
English
college
2
votes
63.3k
views
Graph the following quadratic equation f (x) = x² - 4x + 3
answered
Mar 20, 2023
Mathematics
high-school
7
votes
111k
views
Plzzzzzzzz helpppppppppp
answered
Dec 27, 2022
Chemistry
college
8
votes
123k
views
A tractor of mass 2000kg Pulls a trailer of mass 1500kg. The total frictional force is 3000N and the acceleration of the tractor is 3ms^-2. Calculate; (a) the force exerted on the tractor by the tow-bar
answered
Dec 25, 2022
Physics
college
5
votes
11.6k
views
TRANSLATE IN SPANISH using spanish vocab My mom and dad are both funny and short, My dad is strict while my mom is very free. How old are your parents? HELP!!!
answered
Nov 28, 2022
Spanish
college
8
votes
120k
views
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