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Concentration calculations
Page 2
Questions (747)
bottle of wine contains 13.1% ethanol by volume. The density of ethanol (C2H5OH) is 0.789 g/cm3. Calculate the concentration of
2 answers
asked by
Lawrence
1,304 views
Determine the quantity of stock 75.0% v/v EtOH required to prepare 300ml of a 25.0% v/v EtOH solution
4 answers
asked by
mikela
1,374 views
what weight of NaCl is needed to prepare 200mls of a 250ppm Na solution?
3 answers
asked by
martina
461 views
A certain volume of a .50 M solution contains 4.5g of a certain salt. What mass of the salt is present in the same volume of a
4 answers
asked by
lily
1,384 views
The following solutions are combined:
20 mL of 0.50 M TRIS buffer, pH 7.0 10 mL of 0.25 M KCl 10 mL of 0.30 M sucrose 150 mL dH2O
2 answers
asked by
anna
75 views
1) You have a protein at 20 ug/ml. Its MW =10,000. What is the concentration in molarity? Show work please!
2) You are asked to
2 answers
asked by
Kimberly
556 views
10. A gardener needs 2000ml of insecticide solution with a concentration of 7.0% by volume concentration. The volume of the
6 answers
asked by
maddy
1,370 views
Calculate the molality of 48.2 percent by mass KBr solution?
4 answers
asked by
Donna
3,032 views
4. A solution contains 100 ppm of lead. Determine the mass of lead present in 0.500 kg of the solution.
16. While cleaning a
4 answers
asked by
carter
898 views
how do you find the concentration of an ion remaining after a reaction is complete???
4 answers
asked by
Anonymous
1,156 views
In the question Consider a 0.90 M Al(NO3)3 solution. This solution has a nitrate ion concentration of . . . .
How do you figure
4 answers
asked by
Ken
4,144 views
Calculate the MnO4- concentration of the diluted sample when the sample is prepared in the following manner: Add 2 drops oxalic
3 answers
asked by
Aiyana
2,398 views
A solution contains 0.022 M Ag and 0.033 M Pb2 . If you add Cl–, AgCl and PbCl2 will begin to precipitate. What is the
4 answers
asked by
Sally
7,757 views
Calculate the molar concentration of a solution of nitric acid if 20.00 mL of the acid requires12.63 mL of 0.155 M NaOH to reach
4 answers
asked by
Morgan
1,007 views
What mass of water must be used to dissolve 20.0 grams of ethanol, C2H5OH, to prepare a 0.0500 molal solution of ethanol?
10 answers
asked by
Marcus
3,402 views
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4
6 answers
asked by
Ashley
2,792 views
Calculate the volume of 1.0 M CuSO4 stock solution you should use to make 100 mL of a 0.010 m CuSO4 solution.
5 answers
asked by
Brianna
14,356 views
What volume of a 0.550 M solution of potassium hydroxide can be made with 14.3 g of potassium hydroxide? (Ignore significant
5 answers
asked by
lulu
4,421 views
A solution is 40% acetic acid by mass. The density of this solution is 1.049 g/mL. Calcu- late the mass of pure acetic acid in
4 answers
asked by
Eric
2,158 views
if 25.0 ML of 15M nitric acid is diluted to 125 mL, what is the concentration of the new solution?
5 answers
asked by
julie
1,369 views
Calculate the hydronium ion consentration and the hydroxide concentration in blood in which the PH is 7.3.
Hydronium = [H3O+] =
5 answers
asked by
Jon
2,101 views
A is a solution of trioxonitrate(v) acid, HNO3, of unknown concentration. B is standard solution of sodium hydroxide containing
10 answers
asked by
oward
4,907 views
A solution contains 2 mEq/ml of KCL (Molecular weight 74.5). If a 20 ml ampule of this solution is diluted to 1 liter what is
5 answers
asked by
Ann
5,892 views
How many milliliters of glycerol, d=1.26 g/ml, must be added per kilogram of water to produce a solution with 4.55 mol% C3H8O3 ?
9 answers
asked by
sab
3,524 views
What is the concentration of the resulting solution when 250 mL of 0.1 M K3PO4 and 300 ml of 0.5 M K3PO4 are mixed?
5 answers
asked by
L
2,831 views
How many grams of nitric acid (HNO3) must be dissolved in 740 mL of water to make a solution with a pOH = 8.3?
6 answers
asked by
Natasha
1,698 views
A sample of ammonia gas was allowed to come to equilibrium at 400 K.
2NH3(g) --> N2(g) + 3H2(g) At equilibrium, it was found that
5 answers
asked by
Blake
3,129 views
A 4.55L sample of water contains .115g of sodium ions. Determine the concentration of sodium ions in ppm if the density of the
4 answers
asked by
natash
6,069 views
Calculate the volume of concentrated NaOH solution (which contains 500.00g of NaOH per liter of solution) that you will need to
5 answers
asked by
xx
1,164 views
How would I calculate the molarity of the resulting solution if 25.0mL of 1.50 M HCL solution is diluted to 500 mL. I know you
4 answers
asked by
Daniel
3,120 views
Explain how to make a 1 Normal solution H3PO4.
4 answers
asked by
David
2,141 views
What concentration of Ag+ is in equilibrium with 3.0×10−6 M Co(CN)3−6 and Ag3Co(CN)6(s)?
Ag3Co(CN)6 --> 3Ag^+3 + Co(CN)6 ^-3
4 answers
asked by
Catherine
1,177 views
If 10. g AgNO3 is available, what volume of 0.25M AgNO3 solution can be prepared?
5 answers
asked by
annonymous
3,671 views
If 2.50 g of CuSO4 are dissolved in 9.4 102 mL of 0.34 M NH3, what are the concentrations of Cu(NH3)42+, NH3 and Cu2+ at
4 answers
asked by
Justin
4,105 views
If 100. mL of 0.400 M Na2SO4 is added to 200. mL of 0.600 M NaCl, what is the concentration of Na+ ions in the final solution?
4 answers
asked by
emoni
3,504 views
An aqueous antifreeze solution is 31.0% ethylene glycol (C2H6O2) by mass.
The density of the solution is 1.039 g/cm3. Calculate
5 answers
asked by
Maddie
1,417 views
Calculate the volume of concentrated reagent required to prepare the diluted solutions indicated: (a) 18 M H2SO4 to prepare 225
6 answers
asked by
Annette
3,127 views
1. (Answer c)The hydroxide ion concentration in a 1.0 mol/L solution of acetic acid at 25°C is
a.4.2 x 10^-3M b.2.4 x 10^-11M
4 answers
asked by
Anonymous
1,892 views
I have no idea where to start with this one...
Calculate the concentration (M) of sodium ions in a solution made by diluting
4 answers
asked by
Ann
3,049 views
Using the Absorbance (0.455) of your Unknown SCN- solution and the slope (3163.9) from your Calibration Curve, calculate the
4 answers
asked by
Mark
1,067 views
A solution is prepared by dissolving 20.2 {\rm mL} of methanol ({\rm{CH}}_3 {\rm{OH}}) in 100.0 {\rm mL} of water at 25 ^\circ
4 answers
asked by
aa
3,317 views
how would you prepare 60.0 mL of 0.200 M HNO3 from a stock solution of 4.00 M HNO3?
6 answers
asked by
Michael
4,078 views
5.85g of sodium chloride is dissolved in 250mL of solution. Calculate: a)the molarity of the solution b)the mass percentage of
9 answers
asked by
Asmera
4,447 views
A) Determine the concentration in molarity (M) of a crystal violet solution based on a measured absorbance of 0.545
at 590 nm at
4 answers
asked by
confused chem. student
3,380 views
PCl3(g)+Cl2(g)⇄PCl5(g) Kc=0.11
A 0.60mol sample of PCl3(g) and a 0.70mol sample of Cl2(g) are placed in a previously evacuated
4 answers
asked by
...
1,099 views
How can I make 100ml 0f 2N of HCl? purity is 35% and density is given as 1.18 g/mL
4 answers
asked by
Anna
7,083 views
A 2.500×10−2M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving a sample of NaCl in water and
4 answers
asked by
Jason
3,114 views
By titration it is found that 69.9 mL of 0.151 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the
4 answers
asked by
Janessa
1,745 views
A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of water. The density of the resulting solution?
is 1.05 g/ml. the
4 answers
asked by
john
5,260 views
What volume of a 2.50% M/V glucose solution can be prepared using 250g of glucose?
A) 1.0L B) 100.0mL C) 10.0mL D) 10L
4 answers
asked by
Rachel
847 views
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