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Solutions and Mixtures
Page 4
Questions (189)
Describe the preparation of 5 liters of a 0.3 M acetate buffer, pH 4.47, starting from a 2 M solution of acetic acid and a 2.5 M
2 answers
asked by
Noura
555 views
Calculate the volume of .300 M NaOH needed to prepare a pH=3.50 buffer with 250ml of .075M HF solution. pKa (HF) = 3.15
2 answers
asked by
Will
541 views
What is the vapor pressure (in mm Hg) of a solution of 12.5 g of glucose ( C6H12O6) in 75.0 g of methanol (CH3OH) at 27 degrees
3 answers
asked by
kyle
563 views
A nurse has a 30% alcohol solution and an 80% alcohol solution. He needs 10L of a 40% alcohol solution.
2 answers
asked by
Caitlyn
532 views
A buffer prepared by mixing equal amounts of the salts Na2HPo4 and NaH2PO4 to give a total phosphate concentration of 0.1M. What
2 answers
asked by
Richard
538 views
Hi, i'm really desperate! could anyone please help me with this question, I'm stumped.
'A buffer is prepared by mixing a 100.omL
2 answers
asked by
emily
539 views
What is the molality of a solution prepared by dissolving 75.2 g of ethylene glycol, HOCH2CH2OH, in 1.34 L of water? Assume the
2 answers
asked by
Silvie
532 views
When varsol and iodine in potassium iodide aqueous solution is mixed, two phases form.
What are the colours in each of the 2
2 answers
asked by
crystal
525 views
A basic buffer is prepared by adding 0.3310g of NH4Cl to 1.00L of 0.2088 M NH3. Kb (NH3) = 1.8x10-5.
2 answers
asked by
lara
539 views
chandra has 3 liters of a 28% solution of sodium hydroxide in a container. What is the amount and concentration of sodium
3 answers
asked by
Ashley
520 views
you need to prepare 100 ml of ph=3.50 buffer solution using 0.100 M formic acid and 0.200 M sodium formate. how much of each
2 answers
asked by
Navi
523 views
Need to write a brief description of the procedure required to make 900mL of a 0.5 M NaCl solution. The formula weight of NaCl
4 answers
asked by
Debbie
526 views
A buffered solution is made by adding 48.6 g C2H5NH3Cl to 1.00 L of a 0.77 M solution of C2H5NH2. Calculate the pH of the final
1 answer
asked by
Margaret
507 views
What are the boiling point of a solution prepared by dissolving 2.40g of biphenyl(C^12H^10) in 75.0g of benzene? The molecular
1 answer
asked by
Anonymous
516 views
You have 3.00 L of a 3.00 M solution of NaCl(aq) called solution A. You also have 2.00 L of a 2.00 M solution of AgNO3(aq)
1 answer
asked by
a
33 views
You have 3.00 L of a 3.00 M solution of NaCl(aq) called solution A. You also have 2.00 L of a 2.00 M solution of AgNO3(aq)
1 answer
asked by
a
43 views
You have 3.00 L of a 3.00 M solution of NaCl(aq) called solution A. You also have 2.00 L of a 2.00 M solution of AgNO3(aq)
1 answer
asked by
a
32 views
What volume of 0.170 M K3PO4(aq) must be added to 50.3 mL of 0.103 M K2HPO4(aq) to prepare a buffer solution with a pH of 12.09?
2 answers
asked by
Jamie
489 views
You are a lab technician and must create 250 ml of a 17% salt solution. You have available three stock solutions. You have a one
2 answers
asked by
Fatih
511 views
Todd has 1 liter of a 20% sulfuric acid solution. How much of a 12% sulfuric acid solution must he mix with the 1 liter of 20%
2 answers
asked by
Jennifer
510 views
how much ethyl alcohol must be added to 1.00l of water so that the solution will not freeze at -4f
2 answers
asked by
me
512 views
For a experiment, Jenna needs to make a dilute solution that is 10 ounces of 40% acid. But Jenna only has solutions that are 30%
1 answer
asked by
vincent
485 views
to conduct a scientific experiment, students need to mix 90 millimeters of a 3% acid solution. They have a 1% solution and a 10%
1 answer
asked by
j
468 views
Jenny is running an experiment for organic chemistry class. She needs exactly 100 ml of 70% hydrochloric acid, but the lab only
1 answer
asked by
Sara
494 views
a radiator contains 25 quarts of a freeze water and anti freeze solution ,of which 60% anti freeze. how much of this solution
1 answer
asked by
ping
471 views
A bottle containing 10 liters of alcohol one liter of alcohol is removed and replaced with water. After a liter of the mixture
1 answer
asked by
myke
460 views
I don't really understand how to do this problem, or where to start exactly. Can someone explain to me where to start and how I
1 answer
asked by
Aaron
481 views
How many mL of 3% aqueous hydrogen peroxide solution can you make out of 100 mL of 35% aqueous hydrogen peroxide?
1 answer
asked by
Amanda
470 views
50 g of NaCL is dissolved into 800 ml H2O.
i need to know if is molarity, g/equivalent, freezing point depression, boiling point
1 answer
asked by
chelsy
455 views
Determination of the boiling point of 0.01m solution of aluminum chloride and barium chloride and sodium chloride?
1 answer
asked by
Rahul ude
453 views
Calculate the new freezing point and the new boiling point of an aqueous solution that contains 40.5 g of Calcium Nitrate
1 answer
asked by
Anonymous
450 views
a lab experiment calls for 10% acetic acid solution. The lab has only 5% and 15% acetic solutions available.
How much of each
1 answer
asked by
Brandy
450 views
A solution containing 3.22g of solute in 40.0g of 1,4-dichlorobenzene and its freezing point is 49.2 C. Calculate the molar mass
1 answer
asked by
Nancy
433 views
You make a strawberry shake with 10 strawberries, 2 cups of ice cream, and 1 cup of milk. What is the effect on the shake if you
1 answer
asked anonymously
26 views
Gabe Amodeo, a nuclear physicist, needs 80 liters of a 30% acid solution. He currently has a 20% solution and a 60% solution.
1 answer
asked anonymously
30 views
A solution was made using 100.ml of water and 1.85 g of sodium oxalate. Each trial used 10.0mL of solution.
Titration of 10.0 mL
1 answer
asked anonymously
39 views
In a freezing point depression experiment, it is found that acetic acid is 4.2 %
ionized in 0.010 M solution. Calculate its
1 answer
asked anonymously
14 views
Between 20 and 30 milliliters 25 milliliters of water was retained by soil
Show how we got the answer 25 with all calculations
1 answer
asked by
Kamogelo
10 views
Use the PhET simulation to identify what happens to the concentrations of a dilute Drink mix mixture or a pure Drink mix
1 answer
asked anonymously
42 views
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Parent Categories (7)
Chemical Reactions
Chemistry
Experiments
Organic Chemistry
Percentages
Physical Chemistry
Science and Chemistry