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Chemistry
Page 92
Questions (96,852)
ph balance of NaOH + H2O
1 answer
asked by
Kel
333 views
how much sulfur dioxide is needed to decrease the pH of 1L of water from 9.8 to 8.0?
1 answer
asked by
lisa
301 views
X + Y --> Q
The reaction above has the rate law: rate = k[X]³. When [X] is doubled the rate increases by a factor of ?
1 answer
asked by
Anthony
352 views
A. only evaporation occurs, but it eventually stops.
B. only condensation occurs, but it eventually stops. C. Neither evaporation
1 answer
asked by
Jazmin F.
424 views
How do you know when to use a coordinate bond with molecular compounds?
4 answers
asked by
Emily
411 views
What is the boiling point of a solution made by mixing 115 g NaCl in 1 kg of water? (Kb for water is 0.512 C/m)
1 answer
asked by
Brenna
411 views
Assume that it is necessary to determine the [Fe3+] in a solution that may be in the .0001 to .0005 M range. Outline a
1 answer
asked by
Kirsten
392 views
A system contains liquid water. The water freezes. What is the sign of q for the system for this phase change?
1 answer
asked by
Erika
401 views
A solution whose molarity was found to be 0.5molar contain A, B, &S what is the mole friction of S given that is no S number
1 answer
asked by
Nddii
343 views
what is the mass percentage of Na in Nacl
1 answer
asked by
Nddii
321 views
Calculate the pH of a 25 mL distilled water sample after the addition of 2 mL of HCl
Calculate the pH of a 25 mL distilled water
1 answer
asked by
Kara
359 views
How many moles of NaOH are present in 30.1 mL of 0.140 M NaOH?
1 answer
asked by
Eric
387 views
What do I need from the data i collected from my experiment to get...
moles of CaC2O4xH2o (or CaC2O4) percipitated (mol)
1 answer
asked by
Dana
337 views
if 225 mLs of .50 molars of hydrofloric (HF) acid solution is reacted with 25.5 grams of solid zinc what is the most (in grams)
1 answer
asked by
Nicole
383 views
If some insoluble material contaminated your solution after it had been prepared, how would this effect the measured delta Tf
1 answer
asked by
G
340 views
How would the freezing point of a solution change if the unknown had ionized or dissociated? Explain.
1 answer
asked by
G
374 views
Which indicator can be used to detect the endpoint of a species that has Ka=1.1 x 10E-8?
I used phenolphtalein? is that correct?
1 answer
asked by
Mike
272 views
Waht is the mass in mg of 0.016 moles of glucose (C6H12O6)?
1 answer
asked by
Ashley
311 views
what would be the molarity of a KOH solution if 15 mL of the solution required 22.3 mL of 0.085 M HCl to react with the base?
1 answer
asked by
Anonymous
354 views
what is the Molecular equation for the preparation of tetra-aminocopper(II)sulfate hydrate - Cu(NH3)4SO4*H20
in the experiment
1 answer
asked by
chris
395 views
what is the equation for the reaction of Cu(NH3)subscript2(SO4) with NaOH?
1 answer
asked by
dave
342 views
when sulfur is burned in the presence of oxygen, sulfur trioxide is produced. if 3.4 x 10^24 atoms of sulfur react, how many
2 answers
asked by
Maggie
487 views
Is the molarity of a KI solution constant when heated from 25C to 85C?
1 answer
asked by
terry
389 views
Is 1 mol of pure salt greater than 1 mol of iron?
1 answer
asked by
Natalie
346 views
Calculate the % by mass of sulphur in (NH4)2 SO4
1 answer
asked by
Hunsu bidemi
408 views
A first order reaction has a rate constant of 0.0733 s−1.
What is the half life for this reaction in seconds? when I plug in
1 answer
asked by
Alex
410 views
I have 5.0 ml of lead II NITRATE and mix it with 20.0 ml of Sodium Iodide. what is the formula of the precipitate
1 answer
asked by
Diana
378 views
A certain shade of blue had a frequency of 1.01*10^-4 Hz. What is the energy of exactly one photon of this light?
1 answer
asked by
bert
431 views
In the reaction: Cu(s) + 2 Ag+(aq) ---> Cu2+(aq) + 2 Ag(s)
1.Cu 2.Cu2+ 3.Ag+ 4.Ag i know its Ag but is it Ag+ or just Ag? what
1 answer
asked by
Alexis
383 views
What is the composition of 0.1M sodium acetate buffer,pH 5.00?
1 answer
asked by
Muffin
296 views
what is the composition of 0.05M potassium phthalate buffer ,pH 5.00?
phathalic acid (PH2,PH^-1,P^-2)is dibasic with pKa values
1 answer
asked by
Muffin
360 views
Why are some substances not able to dissolve in water?
1 answer
asked by
ilyrae
329 views
What change would increase the amount of gas able to be dissolved in a given amount of liquid water?
1 answer
asked by
ilyrae
348 views
Calculate the enthalpy of reaction.
D + F --> G + M using the following equations and data: G + C --> A + B ΔH = +277 kJ C + F
2 answers
asked by
Josh
537 views
A: A student must make a five-fold dilution of a 2.15 M HCl solution. If the student wishes to make 75.0 mL of the diluted
2 answers
asked by
Anonymous
511 views
In this exercise, you need to spike 0.5 L of river water with 1,000 �g/L of phosphate.
Starting from a stock solution containing
1 answer
asked by
Nikita
415 views
Describe how to prepare an aqueous 100 mL stock solution of 2 M sodium chloride solution.
1 answer
asked by
Brittany
419 views
Calculate the OH− concentration after 51.3
mL of the 0.100 M KOH has been added to 25.0 mL of 0.200 M HBr. Assume additive
1 answer
asked by
Mandy
436 views
What makes Permanganate such a good oxidizing agent?
3 answers
asked by
Jane
362 views
How can you measure 20 mg. of salt?
1 answer
asked by
Jamie
269 views
How many atoms of each element are present in five formula units of calcium permanganate?
1 answer
asked by
Mary
383 views
At what tempature will a 3.0 m solution of sodium fluride freeze?
1 answer
asked by
Hailey
270 views
Most chlorides are soluble in water. Give all of the formulae for the insoluble chlorides.
1 answer
asked by
Bruce
360 views
Is it possible to have an acid/base reaction and produce a precipitate as a product as well? If yes, provide an example.
1 answer
asked by
Bruce
314 views
Give the molecular, complete ionic, and net ionic equations for the combination of potassium chloride and magnesium sulfate.
1 answer
asked by
Bruce
431 views
Give the molecular, complete ionic, and net ionic equations for the reaction of phosphoric acid and magnesium carbonate.
1 answer
asked by
Bruce
409 views
Give the molecular, complete ionic, and net ionic equations for the reaction of sulfuric acid and barium hydroxide.
1 answer
asked by
Bruce
427 views
How much sulfuric acid is neede to dissole 200 pounds of nickel powder
1 answer
asked by
Hal
377 views
How much sodium carbonate is needed to precipitate nickel sulfate
1 answer
asked by
Hal
365 views
Hello, i seem to be stuck on a problem and do'nt know why im not gettin the right answer.I have the he Ka and Kb values for each
1 answer
asked by
Amy Wight
379 views
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