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Quinine (C₂₀H₂₄N₂O₂) is the most important alkaloid derived from cinchona bark. It is used as an antimalarial drug. For quinine pKb₁ = 5.1 and pKb₂ = 9.7 (pKb₃ = - log Kb). Only 1.0 g of quinine will dissolve
answered
Oct 9, 2024
Chemistry
high-school
5
votes
116k
views
What is the intensity of an electromagnetic wave with a peak electric field strength of 231 v/m?
answered
Aug 18, 2024
Physics
high-school
6
votes
215k
views
Kept for meat production, lab research, and as pets.
answered
Aug 11, 2024
Biology
high-school
4
votes
213k
views
Solve for 8. Give an exact answer. 8^2 = ?
answered
Mar 29, 2024
Mathematics
high-school
6
votes
228k
views
An equilateral triangle has a perimeter of 159 centimeters. Find the length of each side of this triangle. The length of each side of the equilateral triangle is ____ cm
answered
Jan 9, 2024
Mathematics
college
4
votes
154k
views
Which two processes are directly required for a human zygote to be produced? A. Mitosis and fertilization B. Meiosis and fertilization C. Mitosis and differentiation D. Meiosis and differentiation
answered
Jan 8, 2024
Biology
high-school
1
vote
6.1k
views
Can someone please help me with this?
answered
Jul 30, 2023
Mathematics
high-school
0
votes
203k
views
According to Gentile's stages of learning model, the learner's goals for the later stages depend on whether the skill is an open or closed skill. a. True b. False
answered
Jul 28, 2023
Social Studies
high-school
6
votes
134k
views
Write this ratio in the simplest form 15 to 25
answered
May 6, 2023
Mathematics
high-school
2
votes
97.8k
views
Why do people why are people real
answered
Mar 12, 2023
History
middle-school
3
votes
209k
views
Why was Florence the leading culture center of the Renaissance? Give three reasons.
answered
Mar 3, 2023
History
middle-school
7
votes
75.9k
views
IN NEED OF HELP LIKE ASAP!
answered
Dec 14, 2022
Mathematics
high-school
0
votes
221k
views
If china has china business is china china or just china who will wim trump or bid en³³³³³³³³³³³³³³³³³³³³³³³³∉∉∉∉∉∉∉∉∉∉∉
answered
Nov 19, 2022
Business
college
10
votes
79.3k
views
6. The recommended approach for strategy formulation by a leader is for him or her to: Group of answer choices B. inspire a large number of people to help achieve organizational purposes. D. delegate the
answered
Sep 9, 2022
Business
college
6
votes
155k
views
Write the past tense Spanish verb
answered
Aug 22, 2022
Spanish
high-school
3
votes
229k
views
PLEASE HELP !!! start with define what is limits of authority, then give examples
answered
Jun 17, 2022
Business
college
1
vote
214k
views
You deposited $800 into an account paying 4.5% interest compounded continuously. A. How much would be in the account in 5 years? B. How long would it take to double your money?
answered
Nov 1, 2021
Mathematics
high-school
6
votes
167k
views
A house purchased 5 years ago for 100,000 was sold for 161,051. Assuming exponential growth , approximate the annual growth rate , to the nearest percent .
answered
Sep 29, 2021
Mathematics
middle-school
3
votes
145k
views
What are the main causes of deaths and injuries on scaffolds?
answered
Sep 26, 2021
Engineering
college
6
votes
7.7k
views
Knowing what to do in an emergency is important. Read the options on each card and select the correct school policy. How do you reveal the code? Guess a little deciphering is in order! g=c+k y+x=u+r t=s+
answered
Aug 11, 2021
Social Studies
college
1
vote
138k
views
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