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Concentration measurement
Page 2
Questions (70)
Determine the concentration of a dioxin solution whose percent absorbance is 0.40%
This is the resulting: Absorbance Dioxin 0.64
2 answers
asked by
Stacey
519 views
HCHO2 = 1.77 * 10^-4
If the concentration of formic acid (HCHO2) is 1.24 M, what is the concentration of H30+ in the solution?
2 answers
asked by
Ainsley
516 views
If 48 gram solute is present in 500 ml H2O2 solution,what will be its strength by volume and % w/v respectively?
2 answers
asked by
Palak
483 views
My question was
A person’s blood cholesterol level is 245 mg/dL. (1g=1000mg; 1L=1000mL). Show all calculations. What is the
3 answers
asked by
anonymous
518 views
a ferric phosphate solution is prepared by adding 2.4 g of ferric phosphate to a volumetric flask and bringing the final volume
1 answer
asked by
Anonymous
501 views
In the preparation of one liter of 2.5 M HCl solution, what is the volume of HCl
concentrated (37% w / w, d = 1.19 g / ml) to be
2 answers
asked by
Sara
499 views
In the aqueous solution of H2SO4 its mole fraction is 0.2 then closest value of molality or solution is
a)13.9 b)9.8 c)10.2
2 answers
asked by
Aditya
482 views
A one thousand liter sample of water contains one gram of iron (III) ions. What is the concentration of Fe3+(aq) in parts per
2 answers
asked by
joey
482 views
what is the concentration in percent volume of 60mL or methanol in a total volume of 500mL
3 answers
asked by
Alex
458 views
a technician went to the laboratory to prepare a solution of 250.0 mL of calcium carbonate (Na2CO3). It was weighed on the
1 answer
asked by
william
451 views
part 1 what is the molality of a solution that is 4.23% by mass sodium iodide
part 2 what is the molarity of the above solution
1 answer
asked by
hh
473 views
You've just prepared a solution by transferring 20.0 g of glucose into a 1.0 - L volumetric flask, and adding water to the mark.
1 answer
asked by
Britt
478 views
if 3.60g of NaCl is dissolved into 75.00mL of water, what is the concentration of this salt solution, in m/v%?
3 answers
asked by
john
459 views
What is the ppm of 4.50mg of ddt in 10kg of seal fat
Please show how
4 answers
asked by
FF
461 views
Need some direction.. where do I start?
Vinegar is a 5% (mass/mass) solution of acetic acid in water. If vinegar has a density of
1 answer
asked by
Mike
471 views
I have done a titration to find the vitamin c concentration in cabbage. This turned out to be 1.25x10^-4 moles per litre.
1 answer
asked by
kelly
461 views
Express the concentration of a 2.0 M NaOH solution as a mass/volume percent.
3 answers
asked by
Ashleigh
463 views
The density of a 15.00% by mass aqeous solution of acetic acid is 1.0181g/mL
What(i)the molarity (ii)molality (iii) the mole
1 answer
asked by
Wendy
457 views
What is the % ( m/ v) concentration of the calcium chloride solution 1000.00 grams which was dissolved in water to make 1000.00
1 answer
asked by
Ruffles
431 views
Which is measured by alcohol concentration (BAC)?
(1 point )
1 answer
asked by
Gabe
25 views
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Parent Categories (18)
Absorbance
Analytical Chemistry
Chemical Analysis
Chemical Equations
Chemical Reactions
Chemical Solutions
Chemistry
Dilution
Gas properties
Measurements/Units
Mixtures
Protein Assays
Solution
Solution Chemistry
Solution Preparation
Solutions
Stoichiometry
Titration