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Solutions and Concentrations
Page 8
Questions (549)
How would you prepare 2.5 L of a 0.05 M solution of iron (III) chloride using iron (III) chloride hexahydrate
Since 1 mol
3 answers
asked by
MEl
947 views
How many mL of pure isopropyl alcohol is needed to prepare 250 mL of 70% isopropyl alcohol (C3H7OH). I'm thinking if i should
2 answers
asked by
Yeng
911 views
this is a really long question. i don't understand how to answer it. help please.
A 10.0% aquueous solution of sulfuric acid has
2 answers
asked by
Nicole
909 views
Calculate the molarity of 3 drops (0.15mL) of a 0.5M Na3PO4 solution after adding 15 drops (.75mL) of water.
(Presume drops are
3 answers
asked by
Kevin
906 views
Calculate the pOH of an aqueous solution of 146.6 ml of 0.000625 M HBr(aq) after dilution to 850 ml.
1 answer
asked by
Mary Ann
895 views
If you had 500.0 ml of a 0.10 M solution of HCLO, what mass of the corresponding Na+ (sodium salt) of the conjugate base would
4 answers
asked by
sam
881 views
How many grams of NaF are needed to make 50 mL of a 2% aqueous solution?
3 answers
asked by
Angel Hernandez
884 views
A scientist wants to make a solution of tribasic sodium phosphate, Na_3PO_4, for a laboratory experiment. How many grams of
3 answers
asked by
Anonymous
886 views
Last one. Describe how you would prepare 100ml of a solution that is 22% acetic acid by volume?
2 answers
asked by
Jessi
834 views
An aqueous solution that 2.00 M in AgNO3 is slowly added from a buret to an aqueous solution that is 1.00×10−2 M in Cl− and
2 answers
asked by
Sydney
862 views
Assuming ideal behavior, determine the mole fraction of acetone in a solution of acetone and water if the vapor pressure of
2 answers
asked by
Karla
857 views
5. You have made the following two solutions: X) hydrogen ion concentration = 1 x 10-5M Y) pH = 4
State which statements below
2 answers
asked by
Alex
856 views
In what proportion should you combine a 2:5 soaking solution and distilled water to create a 300 ml of a 1:20 solution?
2 answers
asked by
cham
832 views
What is the molarity of OH- in a 7.83×10-3 M NaClO solution that hydrolyzes according to the equation.
ClO-(aq) + H2O(l) =
2 answers
asked by
Jay
839 views
Using the accurate concentration that you measured in Part A (which is 14.77 ml), calculate the mass of HCl (in grams) present
2 answers
asked by
Alex
873 views
10.0 mL of a 0.300M NH3 solution is titrated with a 0.100M HCl solution. Calculate the pH after the following additions of HCl.
0
2 answers
asked by
Raven
839 views
What is the concentration of Cu2+ in a solution that is 0.10 M Cu(NH3)4^2+? (Kf = 1.2 x 10^12)
The answer is 8.0 x 10^-4 How do I
2 answers
asked by
Kelly
783 views
What volume of 6M NaOH needed to prepare 250ml 0.1M NaOH?
3 answers
asked by
alfa
810 views
You made 100.0 mL of a lead(II) nitrate solution for lab but forgot to cap it. The next lab session you noticed that there was
2 answers
asked by
JA
807 views
If one third of 100 g of 27% aqueous sugar solution
is taken in a beaker and 10 g of sugar is added to it, the concentration of
7 answers
asked by
Sannat
809 views
What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O?
2. A solution is made by adding 1.23 moles of KCl to 1000.0 g
2 answers
asked by
Anonymous
807 views
1. 15.0 g of sodium sulfate are dissolved in water to form 400.0 g of solution. The density of the solution is 1.056 g/mL at
2 answers
asked by
josh
804 views
How much Tris-Acetate-EDTA (TAE) stock buffer (3.25 M) is required to make 400 ml of
solution that has a concentrations of 250
1 answer
asked by
Abass
791 views
One liter of 70% alcohol is needed. How much 95% alcohol is required to make the 70% solution. And thank you for last question
2 answers
asked by
Jessi
801 views
If you measured vitamin C in the solution prepared from a vitamin C tablet, calculate how much vitamin C was in the tablet (show
4 answers
asked by
SS
795 views
How would you prepare each of the following solutions?
a. 100mL of a 155ppm solution of urea, CH4N2O, in water. b.100mL of an
1 answer
asked by
DONDON
636 views
A weak base with a concentration of 1.3 mol/L has a percent ionization of 0.72%. What is the Kb of this weak base?
could someone
2 answers
asked by
samantha
797 views
Concentrated acetic acid, HC2H3O2 is 17.4 M. How many mL of concentrated acetic acid do you need to prepare 125 mL of a 0.150 M
2 answers
asked by
Anonymous
796 views
My chemistry is bad. I know these are very easy but I cannot solve them .
1. a) Prepare 200 ml of 2 M HCl solution from stock
2 answers
asked by
Mel
792 views
Isotonic saline is a 0.9%(g/100ml) solution of salty water. You are asked to make up 2 Litres of isotonic saline. How much salt
2 answers
asked by
jo
785 views
An unknown amount of water is mixed with
350 mL of a 6 M solution of NaOH solution. A 75 mL sample of the resulting solution is
2 answers
asked by
Anonymous
790 views
You have 67.0 mL of a 0.400 M stock solution that must be diluted to 0.100 M. Assuming the volumes are additive, how much water
4 answers
asked by
lee
770 views
If a 0.1 mol/L solution is diluted to 0.01 mol/L, the:
a) concentration of hydrogen ions increases b) pH decreases c) acidity
2 answers
asked by
scilover
749 views
A saturated solution of NaCl (dissolved in water) has a concentration of 4.01 M at a given temperature. The solution has a
2 answers
asked by
Avi
781 views
a large 1.5 x 10^6liter tank contains water polluted with lead (II) nitrate at a molarity concentraion of
2.5 x 10^-6 M to the
5 answers
asked by
tom
770 views
How would you prepare 100.0 mL of 0.07500 M AgNO3 solution starting with pure solute?
3 answers
asked by
jennifer
754 views
A student needed to standardize a solution of NaOH which was approximately 0.125 M. The student carefully prepared the titration
2 answers
asked by
Cindy
769 views
1. In order to make 250mL of a 0.100 M HNO3 solution from a 15.9 M stock solution, then _____mL if the 15.9 M stock HNO3
2 answers
asked by
Queen
763 views
You have 20mL of a solution of concentration 0.015mg/mL of x in test tube #1.
Prepare serial dilutions of your stock solution,
2 answers
asked by
Jon
764 views
Too make a 4% solution of paraformaldehyde from a 20 % solution.
C1V1=C2V2 (20)(10ml)= (4)(x) x= 50ml so I would need to add 45ml
2 answers
asked by
Tanya
749 views
Calculate the molality (m) of a 6.56 kg sample of a solution of the solute acetone dissolved in the solvent ethanol if the
3 answers
asked by
Luc
774 views
Find out the molality of acetic acid ch3cooh whose molarity is 2 and density of solution is 1.20 g/ ml ?
2 answers
asked by
Kamal
722 views
A stock protein sample that has a concentration of 250.0mg/ml. You need to dilute this sample to 20.0 mg/ml in buffer. The final
2 answers
asked by
Matthew
727 views
Solution A:50cm^3 of 1.0mol dm^-3 hydrochloric acid,HCl
Solution B:10cm^3 of 2.0mol dm^-3 hydrochloric acid,HCl (a)Calculate the
2 answers
asked by
mandy
731 views
Pb(NO3)2(aq) 2 x 10-3 M
Na2SO4(aq) 2 x 10-3 M Pb(NO3)2(aq) + NaSO4(aq) → PbSO4(s)+ 2NaNO3(aq) a) What are the concentrations of
2 answers
asked by
Jake
727 views
Calculate the volume required for complete neutralization of 60.00mL of 0.1500 M KOH(aq).
a) 0.1500M nitric acid, HNO3. The
4 answers
asked by
tom
702 views
To make 1.5 L of 0.1 M NaCl from a 2.52 M stock solution, you would need to take
____ mL of the stock solution and add _____ mL
2 answers
asked by
aaa
716 views
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4
2 answers
asked by
Lo
727 views
How would you prepare 50.00 mL of 0.25 Molar NaCl from 2.00 Molar NaCl?
2 answers
asked by
Lorraine
704 views
In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure.
3 answers
asked by
Andrew
731 views
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Parent Categories (16)
Acids and Bases
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