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Chemistry
Page 77
Questions (96,991)
What does equivalence point mean?
1 answer
asked by
Anonymous
286 views
DrBob222 - can you set up the equation for the volume problem, i don't have a clue... Is this Charles Law? I know how to change
1 answer
asked by
Tracey
427 views
The solubility of borax is directly proportional to temperature. Therefore, the sign of H is
A. negative B. positive C. unknown
3 answers
asked by
Roxy
430 views
what is the % of mass of 50.0g of solute in 45.0g of water?
6 answers
asked by
allen
299 views
What must be the pH of a solution that is 0.049 M Fe3+ to just cause Fe(OH)3(s) to precipitate?
1 answer
asked by
Chemistry Confused
287 views
Some polymers are flexible when pulled one way but not another(example:milkbags). Can someone please explain why this happens?
1 answer
asked by
lala
308 views
what is the laboratory procedure for separating two volatile liquids?
1 answer
asked by
Ana
376 views
45.0 ml of 9.0x10 the negative 2m hno3 I am needing the steps to help solve the above chem equation
1 answer
asked by
Help
253 views
Why would potassium no longer appear in the equation of a net ionic equation with KIO3 being the oxidizing agent?
1 answer
asked by
Teel
430 views
A 20.9 L container filled with gas at 0.845 atm and 64.0°C contains __________ mol of gas. Express answer to three decimal
1 answer
asked by
Camarra
433 views
The density (in g/L) of CO2 at 444 torr and -6.0°C is __________. Express answer to three (thousandth) decimal places.
1 answer
asked by
Camarra
419 views
The density (in g/L) of CO2 at 444 torr and -6.0°C is __________. Express answer to three (thousandth) decimal places
I don't
1 answer
asked by
Camarra
366 views
Compute the equilibrium constant for the reaction between Ni 2+ (aq) and Co (s).
I'm not sure how to work out this problem. Could
1 answer
asked by
Karley
359 views
I need to find the mass of solute that will dissolve in 300 g water at 45 degrees C.
1 answer
asked by
Ernesto
384 views
40000liter gasoline tank is filled with liquid gasoline with an avg vapor pressure of 20 mm Hg.At 50% saturation, what weight of
1 answer
asked by
Anna
440 views
Ni (s) + Cd^2+(aq)-->Ni^2+(aq)+ Cd(s)
MnO4^-1(aq)+ Al (s) ---> Mn^2+(aq)+Al^3+(aq) no matter what i do, i can't seem to balance
1 answer
asked by
Carl
324 views
How do the qualities of acids and bases shape the natural world we live in?
I really apppreciate, in advance, any help you can
1 answer
asked by
Sara
319 views
Hello, I'm wondering what the difference is in method when it comes to finding the pH of a weak acid versus finding the pH of a
1 answer
asked by
Rob
340 views
what happens when sodium chloride is added to boiling water and why??
Can someone please explain!
4 answers
asked by
Grace
334 views
How do the qualities of acids and bases help us in the natural world?
Please help-I posted this yesterday and I really don't get
1 answer
asked by
Sara
341 views
What equation is used when talking about airplane cabin pressure?
1 answer
asked by
Bri
276 views
A pressurised can of whipped cream has an internal pressure of 1.33x105 Pa at 25.0 oC. If it is placed in a freezer at -15.0 oC,
1 answer
asked by
Alex
369 views
If one strand of DNA has the sequence AATCCGTAGCTC, what would be the sequence of its complementary strand?
1 answer
asked by
Abby
408 views
can u calculate the number of moles 0.5g of H?
1 answer
asked by
corey
249 views
The amount of solar radiation received anually in arizona is about 8.4 x 10^6 KJ/m^2. What mass of carbon must be burned into
1 answer
asked by
AdElE
399 views
Regarding previous post: I don't understand what I'm doing. My book says the answer is .50 M Ba(NO3)2 but I'm not getting that.
5 answers
asked by
Ana
391 views
What is the spontaneous disintegration in which two particles and/or electromagnetic radiation are emitted?
would it be
1 answer
asked by
Julie
349 views
I'm stuck...that is i believe I've come to an impossible answer:
I need to calculate the equilibrium constant 4Fe(s) + 3O2(g) -->
1 answer
asked by
Rico
388 views
I know that benzaldehyde decomposes into benzoic acid and benzyl alcohol via Cannizzaro Reaction..
But, can benzyl alcohol go
1 answer
asked by
Sarah
400 views
what particle is emitted from the nucleus during a proton and neutron decay?
3 answers
asked by
Anonymous
324 views
What would the freezing point be for a solution of 0.87 M aqueous ammonia? the density of this solution is 0.922 g/cm3.
1 answer
asked by
Anonymous
409 views
What is the pH of the solution created by combining 12.40 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?
with 8.00
1 answer
asked by
Manali
337 views
DrBob, if you're still on...what do I do for NaCl??
1 answer
asked by
Stuck
386 views
An unknown gas has a density of 2.36g/L at 298K and 110 kPa. Calculate its molar mass.
1 answer
asked by
Amy
384 views
Calculate the density of carbon dioxide gas at 253K and 648 torr.
1 answer
asked by
Anonymous
420 views
To what Celsius temperature must 44.5 mL of methane gas at 43.0°C be changed so the volume will be 63.0 mL? Assume the pressure
1 answer
asked by
Megan
394 views
Can somebody explain how to do this? I am stuck. I've tried solving for H+ concentration. I got .00024M and subtracted it from
1 answer
asked by
John
374 views
What is the pH of the solution created by combining 2.40 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HC2H3O2(aq)?
Can
7 answers
asked by
John
423 views
A)250 g of LiBr is dissolved in 200g of water 100 degrees C. The solution is then cooled to 20 degrees C. How much precipitate
2 answers
asked by
Jack
476 views
is lithium thionyl chloride batteries rechargeable or disposable
1 answer
asked by
Anonymous
307 views
How do you solve for the experimental pKa when doing a titration?
1 answer
asked by
Andrew
326 views
Which of the following compounds will melt ice at the lowest temperature? Sucrose, sodium chloride, or magnesium chloride?
1 answer
asked by
Jack
377 views
Find the pH experimentaly .1 ml before and .1 ml after the equivalence point if the experimental equivalence point was found to
1 answer
asked by
Andrew
394 views
Is it possible to determine the Ka of a weak acid at points other than the halfway point of a titration? Explain.
1 answer
asked by
Andrew
380 views
Consider a 790-mL container at 21 °C in which the pressure of argon is 1.98x106 Pa.
a) What mass of argon (in g) is present in
3 answers
asked by
write2khin
423 views
what would the freezing point be for a solution of 0.87M aqueous ammonia? The density of this solution is 0.992g/cm3
1 answer
asked by
Chem
408 views
A characteristic of benzene is which of the following?
C6H6 aromatic planar all of the above I think it is all of the above but
3 answers
asked by
Tim
392 views
A characteristic of benzene is:
C6H6 aromatic planar all of the above I think it is all of the above but I'm not sure Thank you
1 answer
asked by
Tim
352 views
What is the highest number of bonds that one Carbon atom can make?
4 3 2 1 I'm thinking four but I probably am wrong-I'm not
1 answer
asked by
Sara
407 views
What is the pH of the solution created by combining 2.70 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00
5 answers
asked by
Ashley
399 views
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