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Recent questions in Chemistry
The distribution coefficient (K) of 4-fluorophenol in 1-octanol versus water is 3.35. If a solution of 1.00 gram of 4-fluorophenol in 10.00 mL of water was extracted with one 5.00 mL portion of 1-octanol,
Brucemax
asked
Oct 7, 2024
by
Brucemax
8.2k
points
Chemistry
college
1
answer
3
votes
71.3k
views
Name the ionic compounds a) K₂SO₄
Volker Andres
asked
Oct 7, 2024
by
Volker Andres
8.2k
points
Chemistry
high-school
1
answer
3
votes
169k
views
What substances can pass through the filtration slit and enter the filtrate?
Margusholland
asked
Oct 7, 2024
by
Margusholland
8.1k
points
Chemistry
high-school
1
answer
4
votes
65.1k
views
The role of the metal ion (Mg2+) in catalysis by enolase is to: A) act as a general acid catalyst. B) act as a general base catalyst. C) facilitate general acid catalysis. D) facilitate general base catalysis.
Vidurajith Darshana
asked
Oct 7, 2024
by
Vidurajith Darshana
8.0k
points
Chemistry
high-school
2
answers
5
votes
70.3k
views
How many moles of Ca are required to react with 2.50 mol of Cl to produce the compound CaCl2
Robert Davy
asked
Oct 7, 2024
by
Robert Davy
7.8k
points
Chemistry
college
1
answer
2
votes
309
views
Find pH in the following solution if their [H^+] concentration is : a) [5x10^-9 ml/dm^3]
Rnicholson
asked
Oct 7, 2024
by
Rnicholson
8.1k
points
Chemistry
high-school
1
answer
3
votes
64.0k
views
The type(s) of intermolecular forces exhibited by hydrogen bromide molecules, HBr, is/are a) Van der Waals forces b) Hydrogen bonding c) Dipole-dipole interactions d) All of the above
Dan Midwood
asked
Oct 7, 2024
by
Dan Midwood
7.9k
points
Chemistry
high-school
1
answer
3
votes
230k
views
Oxygen containers, apparatus, and fittings shall not be handled with? a) Greasy hands b) Leather gloves c) Bare hands d) Rubber gloves
Chad Marmon
asked
Oct 7, 2024
by
Chad Marmon
8.3k
points
Chemistry
high-school
1
answer
5
votes
10.4k
views
Assuming we are going to put samples into a refrigerator, which of the following chemicals requires an explosion-proof refrigerator? a. Sodium chloride b. Hydrochloric acid (6.0 N, aqueous) c. Ethanol
Gnawme
asked
Oct 7, 2024
by
Gnawme
8.2k
points
Chemistry
high-school
1
answer
1
vote
148k
views
When is the boiling point of a liquid equal to its normal boiling point? Select one: a. The boiling point of liquid is equal to its normal boiling point when the atmospheric pressure is equal to 10 atm
Taplar
asked
Oct 7, 2024
by
Taplar
8.0k
points
Chemistry
high-school
1
answer
0
votes
170k
views
Determine the volume of water that needs to be added to 25 ml of a 0.250 M Br solution to produce a 0.0325 M solution.
Kowalikus
asked
Oct 7, 2024
by
Kowalikus
8.3k
points
Chemistry
high-school
1
answer
1
vote
118k
views
What is the product of the SN2 reaction of this amine with one equivalent of methyl iodide, assuming a neutralizing workup? A) Amine iodide B) Methylamine C) N-Methylamine D) N-Methylammonium iodide
Keyur PATEL
asked
Oct 7, 2024
by
Keyur PATEL
9.2k
points
Chemistry
high-school
1
answer
2
votes
84.9k
views
Which of the following ions is primarily responsible for phase 0 depolarization of the SA node? (Waniewski) a) Na b) Mg²+ c) K d) Ca²+
Alma
asked
Oct 7, 2024
by
Alma
8.2k
points
Chemistry
high-school
1
answer
3
votes
178k
views
A sulfur atom and a sulfur molecule are not identical. What is the difference? a) An atom is the smallest unit of sulfur; a molecule consists of multiple atoms. b) An atom is a pure substance; a molecule
VeLKerr
asked
Oct 7, 2024
by
VeLKerr
8.4k
points
Chemistry
high-school
1
answer
3
votes
99.5k
views
The mole fraction of chromium(II) nitrate, Cr(NO3)2, in an aqueous solution is 5.69x10-2. The percent by mass of chromium(II) nitrate in the solution is | %.
Jabal Logian
asked
Oct 7, 2024
by
Jabal Logian
8.1k
points
Chemistry
high-school
2
answers
1
vote
62.2k
views
The octane rating of gasoline is a relationship of the burning efficiency of the given gasoline mixture to the burning efficiency of octane (C8H18 ). Like most hydrocarbons, octane reacts with oxygen gas
Akyegane
asked
Oct 7, 2024
by
Akyegane
7.9k
points
Chemistry
college
1
answer
2
votes
15.3k
views
Some materials, when mixed with water, will change properties and dissolve. The rate at which a substance dissolves in water can be altered by which of the following? A. Increase in temperature B. Using
Simon Whitehead
asked
Oct 7, 2024
by
Simon Whitehead
8.8k
points
Chemistry
high-school
1
answer
2
votes
143k
views
Sally has constructed a concentration cell to measure ksp for mcln. She constructs the cell by adding 2 ml of 0.05 M M(NO₃)N to one compartment of the microwell plate. She then makes a solution of MClN
Nikola Milicevic
asked
Oct 7, 2024
by
Nikola Milicevic
8.4k
points
Chemistry
high-school
1
answer
2
votes
30.4k
views
Copper salts generally have a ____color. a) blue b) green c) pink d) white
Arg
asked
Oct 7, 2024
by
Arg
7.8k
points
Chemistry
high-school
1
answer
1
vote
162k
views
Authors add to the examples by adding additional _____. anecdotes examples details
Triveni Badgujar
asked
Oct 7, 2024
by
Triveni Badgujar
8.6k
points
Chemistry
high-school
1
answer
5
votes
204k
views
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