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Chemistry
Page 96
Questions (96,938)
To what volume must a solution of 86.1 g H2SO4 in 494.0 mL of solution be diluted to give a 0.18 M solution?
1 answer
asked by
Sam
371 views
what is the relative humidity if there is .5 moles of water vapor per 100 liters of air at 40 degrees celcius?
1 answer
asked by
Amy
371 views
Calculate the molarity (M) of a solution of the strong acid HNO3 if the hydroxide ion concentration is 2.17E-12 M.
1 answer
asked by
Anonymous
397 views
When a sodium atom absorbs light at 330.2 nm, the 3s electron is promoted to the 4p level. How much energy would be required for
1 answer
asked by
Kelsey
358 views
Calculate the amount of solute needed to make each of the solution:
225g of 10% (m/m) K2CO3 solution .50kg of a 18% (m/m) KOH
1 answer
asked by
Curlyqty
423 views
When 0.689 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 11.2C is observed.
Assume the
1 answer
asked by
ChemGeek
413 views
150g silver sulfide to moles.
1 answer
asked by
Kristy Donero
333 views
Which of the following rate laws suggests that the reaction probably occurs in a single step?
NO(g) + O2(g) → NO2(g) + O(g)
1 answer
asked by
dude
415 views
What happens when soda ash is heated?
1 answer
asked by
Elee
312 views
How many L of N2 gas are produced at STP when an airbag inflates if the airbag contains 132g of sodium nitride?
1 answer
asked by
Kathy
349 views
I found the empirical but i don't know how to get the empirical formula for NH2. can anyone help?
1 answer
asked by
nalleli
311 views
What is the definition of Gay-Lussac's law?
1 answer
asked by
Kevin
363 views
What is the freesing point for ethanol and methane
1 answer
asked by
Mariama
334 views
What is the freesing point for ethanol and methane
1 answer
asked by
Mariama
274 views
What is the pH of a solution prepared by mixing 50.0 mL of 0.010 mol/L HCl(aq) and 50.0 mL of 0.010 Ca(OH)2(aq)?
Assume the
1 answer
asked by
iYeon
383 views
What happens to the color of the FeCl2 when the equivalence point is reached?
1 answer
asked by
Anonymous
319 views
Could NH4 ever be a gas?
3 answers
asked by
Maddi
342 views
Calculate the amount of solute needed to make the solution. I can't remember how to set these up.
.50kg of a 18% (m/m) KOH
1 answer
asked by
Monster
361 views
Can anyone tell me if I am right on these?
Calculate the amount of solute needed to make each of the solutions 225g of 10% (m/m)
1 answer
asked by
Julie
341 views
How much heat is necessary to change 5 grams of water at 10 degrees celcius to water at 70 degrees celcius?
1 answer
asked by
Princess
364 views
If you used exactly 0.50 grams of salicylic acid, what was the theoretical yield of ester?
1 answer
asked by
Gerardo Reyes
405 views
If you used exactly 0.50 grams of salicylic acid, what was the theoretical yield of ester?
3 answers
asked by
Gerardo Reyes
438 views
How to find how many moles of water can be produced from 11 moles of
1 answer
asked by
AER
340 views
A gas at 1.5 atm, 2.3L, and 23degreeC changed to 1.0 atu and 2.8L. What is the new temperature?
1 answer
asked by
Zach
227 views
Just keep getting different answers when i review this, i can't seem to get the correct one.
Calculate [H3O] and [OH] for a
1 answer
asked by
Laura
286 views
i have another one i can't get the write answer for...
Calculate the pH of the colution that results when 27.38 mL of 0.15 M
1 answer
asked by
Laura
305 views
When 0.4300g of NaNO2 is allowed to react with an excess of HSO3NH2, the volume of water is 24.6 degrees celsius and that of the
1 answer
asked by
Codec
434 views
A Sample Of Gas With A Volume Of 825mL Is Measured At 25.0 Degrees Celcius. Find The New Temperature When The Volume Is 135mL.
Wh
1 answer
asked by
Anonymous
402 views
What is the concentration of CrO22
4 in 0.0040 M Ba(NO3)2 saturated with BaCrO4. Including the activity coefficients in the
1 answer
asked by
Nadia
386 views
what is the accetic acid solution when 30ml .15M NaOH have been added to 50ml .1M HOAc?
1 answer
asked by
Gabby Gonzalez
327 views
What is the volume of 0.255 moles of gas held at 1.75atm and 10°C?
1 answer
asked by
J.Gomez
306 views
In AB...AB...AB type arrangement if all the atoms present in body are removed,then packing fraction of the crystal is?
1 answer
asked by
Swathi
414 views
Really hard Chemistry question that I need help with. Any assistance would be really helpful.?
When 0.5963g of a sample
1 answer
asked by
Codec
426 views
Calculate how much heat 32.0 g of water absorbs when it is heated from 26.0°C to 73.5°C.
1 answer
asked by
Jessica
415 views
When 0.5963g of a sample containing NaNO2 and some inert material is allowed to react with excess HSO3NH2, the volume of N2 gas
1 answer
asked by
Derek
433 views
When 0.5963g of a sample containing NaNO2 and some inert material is allowed to react with excess HSO3NH2, the volume of N2 gas
1 answer
asked by
Mark
416 views
Which shows 15/c9d3 in simplified radical form with the smallest possible index?
1 answer
asked by
Melanie
403 views
What are the steps in solving this problem? There was 455 mL of water added to 60 mL of a 2M ammonia solution. What is the new
1 answer
asked by
Colleena
320 views
If you are given 46 grams of magnesium how many grams of hyfrogen will be produced?
1 answer
asked by
Jena
375 views
phosgene an equilibrium reaction
is the formation of phosgene an equilibrium reaction? how can you tell
1 answer
asked by
John
294 views
A 7.2 ´ 10-3 M solution of acetic acid is 5.0% dissociated. In a 7.2 ´ 10-4 M solution, the percentage of dissociation would
1 answer
asked by
Roxanne
371 views
How many joules of heat are needed to increase the temperature of 18.4 g of silver from 17.0 to 41.0 °C?
1 answer
asked by
Roxanne
432 views
Using data in table below and S °(NaCl(s))= 72.38 J·mol-1·K-1, calculate ÄfS° for NaCl(s) in J·mol-1·K-1.
Compound S °,
1 answer
asked by
Roxanne
401 views
Given the equation
NO(g) + 1/2)O^2(g) <-> NO(g) at 457 Kelvin with a K = 7.5 x 10^2 Find the K value for the equation 2NO^2(g)
5 answers
asked by
K
403 views
Are these equations balanced correctly? Zn(s) + 2
Na+(aq) + 2 OH-(aq) + 2 H2O(l) → Zn(OH)42-(aq) + 4 Na+(aq) + H2(g) 2 C3H6(g)
4 answers
asked by
Anonymous
411 views
which of the following 10 g samples will decay the most in 28 days?
a.P-32 b.Kr-85 c.Fr-220 I-131 the answer is c.Fr-220 but i
1 answer
asked by
Jazmin
376 views
A rigid container at 300kPa is heated to a new temerature of 30 degrees celcius and a new pressure of 350kPa what is the intial
1 answer
asked by
Jackie
416 views
23.7 grams of glucose(C6H12O6) are added to water to give a 246 ml of solution. what is the Molarity
1 answer
asked by
Jackie
417 views
The ksp of aluminum hydroxide is 5.6e-17. What is the concentration of hydroxide in a saturated solution?
1 answer
asked by
Kat
412 views
What happens to the rate of a reaction if the temperature is decreased and why?
1 answer
asked by
Kat
358 views
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