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Chemistry
Page 90
Questions (96,332)
How do I convert moles to figure out chemical equations?
1 answer
asked by
Eric
337 views
A solution is prepared with 50.0 g of HNO3 and 130.0 g of H2O. It has a density of 1.21 g/mL. What is the mass/volume percent?
1 answer
asked by
Sara
332 views
How do you calculate the volumes of the acid solutions (1.50M HCl, 1.50M HNO3, and 1.50 M H2SO4?
4 answers
asked by
Katie
412 views
How can you tell if a molecule is polar or non-polar
1 answer
asked by
Mm
327 views
you measure 5.3g of KOH and dissolve it in enough water to make 400 ml of solution. what is the molarity of this base? You want
1 answer
asked by
Jessica
415 views
What's the molar mass of AuCl3 x 2H20?
1 answer
asked by
Anonymous
380 views
Calculate the pH of the buffere prepared if 40.0 mL of .2M NaOH is added. The previous buffer is made from HF an NaF... assume
1 answer
asked by
John
439 views
I have a question which asks...
What is the Oxidation number of Nitrogen in Cu(NO3)2 I know the answer is 5+ but how do you get
1 answer
asked by
Jess
404 views
1.What is the molarity of a solution of silver perchlorate, AgClO 4, if 3.2 moles of silver perchlorate are dissolved in 1.5
1 answer
asked by
Barbara
385 views
If you have 200 mL of a 0.50 M solution of KOH and you wish to dilute it to 0.30 M, how many mL of water should you add?
3 answers
asked by
asdffffff
300 views
A sample of iron with a mass of 75.66g and an initial temperature of 15.38C gains 10480 Joules. What is the final temperture?
1 answer
asked by
Lewis
365 views
How does HI(g) split into H and I?
1. Does it collide with another HI(g) and energy is lost? or the electron being shared gets
1 answer
asked by
BlahxD
380 views
How does HI(g) split up into H and I.
1. Does it collide with another HI(g) and energy is lost? or the electron being shared gets
1 answer
asked by
BlahxD
374 views
How does HI(g) split up into H and I.
1. Does it collide with another HI(g) and energy is lost? or the electron being shared gets
3 answers
asked by
BlahxD
338 views
Would the molar mass become high or low if the hole in aluminum foil was quite large?
1 answer
asked by
Linda
324 views
Explain exactly how you would make 1 liter of a .10 M acetic acid solution using vinegar from the lab as the stock solution to
1 answer
asked by
Haley
338 views
Consider the reaction
2 SO2 + O2 in equilibrium with 2 SO3 . At 25°C Ho = -197.78 kJ and So = -187.95 J/K. Using this
1 answer
asked by
Laura
423 views
At which temperature will the following reactions reverse? Use the thermodynamic date provided at the end of the book.
a) 2Ca(s)
1 answer
asked by
Amber
300 views
Why do tomatoes grow better in a greenhouse?
1 answer
asked by
Rashmi
420 views
Find the Ph:
of 7.01 x 10-5 M Ba(OH)2 thanks:)
1 answer
asked by
Rachel
238 views
Which of the following atoms or ions has the largest radius:
Answer Na+ Mg+2 Mg Na
1 answer
asked by
Mark S.
310 views
How many valence electrons does Mo+3 have?
3 answers
asked by
James
416 views
How many moles of gas in a helium filled tank with a volume of 4.00 L when thepressure inside is 365 atm andthetemperture is 33
1 answer
asked by
Jim
373 views
Could someone answer this question so I understand it. Thanks
Alcohols can function as both nucleophiles and as electrophiles in
1 answer
asked by
Jules
374 views
Sodium ions when combined with chlorine irons produces sodium chloride
1 answer
asked by
Charnita
381 views
Sodium ions when combined with chlorine irons produces sodium chloride
1 answer
asked by
Charnita
332 views
Could someone answer this question so I understand it. Thanks
cyclopentanol ----> cyclopentane Which of the following sets of
1 answer
asked by
Jules
385 views
cyclopentanol ----> cyclopentanone
Which of the following sets of reagents could be used to accomplish the above transformation?
1 answer
asked by
Jules
404 views
Could someone answer this question so I understand it. Thanks
cyclopentanol ----> cyclopentane Which of the following sets of
1 answer
asked by
Jules
341 views
Explain how t make 1.5L of a 2.25M solution of H2SO4 from 6.0M stock solution.
3 answers
asked by
Kayla
323 views
How many mL of Water are made from 4 moles of HNO3?
1 answer
asked by
Alyssa
333 views
Calculate the specific heat capacity of H20(liquid) in (Joules/mole* degrees celcius)
1 answer
asked by
Seannnny
381 views
Find the mass of oxygen gas needed to react with 0.2 moles magnesium and the mass of the product?
Working out please
1 answer
asked by
Jannie
421 views
Solvent In which Lycra Dissolve but cotton not affected/mildily affected?
1 answer
asked by
SANI RAY
338 views
how many grams of a solution are present if the solution contains 12.5g of KCL and is 43% by mass?
3 answers
asked by
Ryan hawkins
390 views
Besides the fact that it would reduce pollution, why would a hydrogen fuel based car be a better choice than a regular gasoline
1 answer
asked by
Karen
421 views
Determine the prcentage composition of the compund HCl?
1 answer
asked by
Jessica
294 views
how could you maximize the rate of reaction of magnesium and hydrochloric acid other than concentration and surface area
1 answer
asked by
Anjan
311 views
describe an experimental design that you might use to determine the effect of temperature on reaction rate.
1 answer
asked by
Anjan
296 views
To what Celsius temperature must 32.5 mL of methane gas at 60.0°C be changed so the volume will be 62.0 mL? Assume the pressure
1 answer
asked by
Mary
316 views
A 230. mL air sample collected at 35°C has a pressure of 550. torr. What pressure will the air exert if it is allowed to expand
1 answer
asked by
Mary
386 views
If 290 Liters of carbon dioxide forms, how many grams of nitroglycerine exploded?
1 answer
asked by
Syd
356 views
How many moles are in 51 g of (NH4)2SO4
1 answer
asked by
Dee
359 views
How do you work the problem
1:10 dilution of 75mL of 2.5M H2SO4
1 answer
asked by
Connie
373 views
A 30.9 L cylinder containing C2H4F2 at a pressure of 114.0 torr is connected by a valve to 0.865 L cylinder containing C4H10 at
3 answers
asked by
BOB PLEAE HELP!!!
423 views
Find the mass of oxygen gas needed to react with 0.2 moles magnesium and the mass of the product?
Working out please
1 answer
asked by
Babiinoob
326 views
A 69.4 L cylinder containing C2H6 at a pressure of 570 torr is connected by a valve to 105 L cylinder containing C6H6 at 0.350
1 answer
asked by
itsliferight
428 views
What is the solubility of Ca(OH)2 at a pH of 4.802 Ksp of Ca(OH)2 = 6.500*10-6
1 answer
asked by
Jude
375 views
What must be the concentration of F- to just start precipitation of SrF2 from a solution which is 1.202*10-5M i Sr(NO3)2? Ksp =
1 answer
asked by
Jude
415 views
Okay, this is a question in several parts that really stumps me:
Given the following reaction determine the rate of expression
1 answer
asked by
Wendi
372 views
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