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Chemistry
Page 93
Questions (96,468)
(5 pts) Hexane is a hydrocarbon (a molecule containing only carbon and hydrogen) with a molecular weight of 86.18 g/mol,
a
1 answer
asked by
Synthia
394 views
The (water, hydrocarbon)______ creates a cage where the water is the (host, guest)______
for/of the hydrocarbon.
1 answer
asked by
CHEMBOB
408 views
HCl (g)
Hbr(g) HF(g) Which of these gases has the fastest average speed? The highest average kinetic energy? How do I determine
1 answer
asked by
Ashlee
368 views
Determine the number of moles in 56 g of N2
1 answer
asked by
Emily
302 views
A student places 5.77 grams of wex (a mythical substance often burned for light on other planets) in a test tube and then melts
3 answers
asked by
Kat
424 views
I don't get this problem...
6.0 N H2SO4 = ________ M How can you solve for Molarity without mL? Thanks, much appreciated!
1 answer
asked by
Adry
337 views
A ship carrying ice over a lake breaks and spills its cargo.If 3650.0 g of ice at 0.00 celcius are released into the 15456200 g
1 answer
asked by
Kat
383 views
Balance the following in an acidic solution:1]Fe ----> Fe(OH)2 & 2]NO3 -----> NH4^+
1 answer
asked by
Genelia
327 views
Calculate the pH of a solution that is made by mixing 10.00 mL of 0.2500 M HCl with 35.00 mL of .1500 M HNO3 and diluting the
1 answer
asked by
Dan
443 views
A solution of sulfuric acid is 50.0% H2SO4 by mass and has a density of 1.15 g/mL. Calculate the molarity of the solution.
1 answer
asked by
Kamila
407 views
Calculate the average mass, in grams, of an iron atom.
1 answer
asked by
Kamila
697 views
Does water or chloride ion bond more strongly to the cobalt(II) ion?
1 answer
asked by
Hunter
309 views
How much energy in KJ is release to form one mole of 123Sb from protons and neutrons if the atom has a mass of 122.90422 amu?
3 answers
asked by
Jay
403 views
How much time in years (assume a 365 day yr) would it take for a 1.6678g sample of 239Np to decay to a mass of 0.8671g if it has
3 answers
asked by
Jay
338 views
What is the [H+] of a 0.1 M malonic acid with a Ka of 10^-9 solution?
I thought it was just (Ka x Ca)^(0.5), but that doesn't get
1 answer
asked by
Ed
334 views
What if sodium iodide, sodium iodate, and sulfuric acid were mixed with a small amount of 1,2 dichloroethane? With hexane?
1 answer
asked by
Hillary
380 views
What is the molarity and normality of 100.3 grams of calcium hydroxide dissolved in 775 ml of water?
1 answer
asked by
Chris
369 views
What is the pH, pOH [OH-] and [H+] for 0.000535 M hydrosulfuric acid?
1 answer
asked by
Chris
400 views
Besides creating less pollution, what is another reason hydrogen based fuel for cars would be a a better alternative than the
1 answer
asked by
Keren
391 views
How many grams of H2SO4 are contained in 4.5L of .30 N sulfuric acid?
1 answer
asked by
Josh
321 views
Calculate the normality of 5 M HCl
1 answer
asked by
Josh
322 views
What is an unsaturated hydrocarbon?
1 answer
asked by
Peter
390 views
Explain why carbohydrates, lipids, and proteins are important parts of a well-balanced diet.
1 answer
asked by
Peter
402 views
Calculate the theoretical pH after 2.50ml and 9.50ml of NaOH has been added in both the titration of HCl and of HC2H3O2.
1 answer
asked by
anna
416 views
Use the standard reduction potentials in volts: Cu^2+ --> Cu+ +0.16;
1 answer
asked by
JBug!
407 views
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
367 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
393 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
419 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
411 views
150g silver sulfide to moles.
1 answer
asked by
Kristy Donero
332 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
414 views
What happens when soda ash is heated?
1 answer
asked by
Elee
311 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
347 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
310 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
333 views
What is the freesing point for ethanol and methane
1 answer
asked by
Mariama
271 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
380 views
What happens to the color of the FeCl2 when the equivalence point is reached?
1 answer
asked by
Anonymous
316 views
Could NH4 ever be a gas?
3 answers
asked by
Maddi
340 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
359 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
340 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
362 views
If you used exactly 0.50 grams of salicylic acid, what was the theoretical yield of ester?
1 answer
asked by
Gerardo Reyes
403 views
If you used exactly 0.50 grams of salicylic acid, what was the theoretical yield of ester?
3 answers
asked by
Gerardo Reyes
435 views
How to find how many moles of water can be produced from 11 moles of
1 answer
asked by
AER
339 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
283 views
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