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Concentration
Page 10
Questions (659)
Consider 18.0 M H2SO4, if you need to make 250.0 mL of a 3.0 M solution of H2SO4, how would you do this?
18.0 M H2SO4 has a
5 answers
asked by
Marie
665 views
how do you do this question
An aqueous solution of calcium chloride contains 2 grams of calcium chloride ( molar mass 110.98 g
2 answers
asked by
Slaysliver
683 views
How would the absorbance of the standard solution have been affected if 0.00050 M NaSCN had been used in place of 0.00040 M
4 answers
asked by
Kirsten
659 views
A sample of 8 grams of NaOH is dissolved into
599 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then
1 answer
asked by
Susan
665 views
Calculate the molarity of the commercial bleach before it was diluted. bleach 6.25%
2 answers
asked by
Anna
636 views
A student prepares a 2M solution of copper sulphate. She adds 17 mL of the solution to a 100 mL volumetric flask and dilutes it
2 answers
asked by
flona
646 views
How many milliliters of a 2000.0 mg/dl stock solution are needed to prepare 100.0 ml of a 150.0 mg/dl working solution?
3 answers
asked by
Jessi
667 views
A student dissolves 18.9 grams of Zn(NO3)2 [molar mass = 189] in enough water to make 500.0 of solution. A 100.0 ml portion of
2 answers
asked by
Paul
654 views
Calculate the concentration in molarity of sugar in a solution made by dissolving 0.34 moles of dextrose (C6H12O6) in enough
2 answers
asked by
Seep
652 views
If 35.8 grams of LiCl are dissolved in 184 grams of water, what is the concentration of the solution in percent by mass?
2 answers
asked by
smith
653 views
Preparing solutions
a. A solution was prepared by dissolving 5.65 g potassium bromide in 32.67 g water. What is the concentration
3 answers
asked by
Shell
669 views
The concentration of commercially available concentrated nitric acid is 70% , or 15.9M
In 100 grams of solution there are 1.11
1 answer
asked by
Lahna
636 views
0.1825 g of Fe(NH4)2(SO4)2•6H2O is dissolved in 250.00 mL of solution; this is Solution A. 5.00 mL of Solution A is
2 answers
asked by
Anonymous
615 views
Calculate the OH- of each aqueous solution
aspirin, 5.9×10−4 M milk of magnesia, 1.5×10−9 M
2 answers
asked by
Angela
614 views
The mole fraction of zinc chloride, ZnCl2, in an aqueous solution is 5.73×10-2 .
The percent by mass of zinc chloride in the
1 answer
asked by
Ebony
620 views
A garden fertilizer contains 15% by mass of nitrogen. The recommended usage is 30g of fertilizer per 10dm^3 of water. What is
2 answers
asked by
Claudia
608 views
The cafeteria decides to save money by using concentrated acetic acid (CH3COOH at 17.5 mol/L) and diluting it with water
2 answers
asked by
Anonymous
622 views
Have 250 mL of a 0.80 M solution of silver nitrate AgNO3 dissolved in water. how many grams of AgNO3 does the solution contain
2 answers
asked by
mary
624 views
The amount of lead in drinking water is 0.025 mg/L. Express this concentration in molality. {molar mass of lead is 207.2 g/mol
3 answers
asked by
karen
619 views
if 25.0 mL of 15M nitric acid is diluted to 125 mL, what is the concentration of the new solution?
i got 3M but i don't think its
2 answers
asked by
Anonymous
607 views
If you made up a solution of NaOH by adding 0.010 mole of solid NaOH to 1.0 liter of distilled water, what would be the
2 answers
asked by
carli
598 views
What is the molar concentration of all ions present in a solution prepared by mixing the following? Assume that volumes of the
1 answer
asked by
Anonymous
600 views
Here's the problem: You need to make 300L of 2.25M perchloric acid. It costs $25.95 for a 4.00 liter bottle of 60% HClO4, and
3 answers
asked by
Evie
606 views
The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an
4 answers
asked by
thuy
602 views
what is the % mass/volume (%W/V)of KOH in 60ml of a solution that contains 5gn of KOH?
2 answers
asked by
twynna
579 views
this is a lab i am working on and this is what is says:
Solution A is mixed with water to produce solutions of varying
2 answers
asked by
Arnold
589 views
What is the volume of solution prepared when 6g of acetic acid is dissolved to prepare 0.25M solution
3 answers
asked by
Ahmad ali
581 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 its molarity (M)?
2 answers
asked by
Michelle
587 views
How many milliliters water are needed to make a 0.171 M solution that contains 1.00 g of NaCl?
2 answers
asked by
Rob
570 views
Intensity = 84,250 M-1 * [Li+] + 1.75
If the intensity of your unknown sample is 90, what is the concentration of Li+ in the
3 answers
asked by
Anonymous
609 views
An aqueous solution of ethanol is 3.05 M in ethanol, CH3CH2OH. Calculate the mole fraction of ethanol if the density of the
3 answers
asked by
mark
600 views
I need to calcuted the molarity from this
12.5 g of ethylene glycol antifreeze dissolved in o.100kg of water. Density of solution
2 answers
asked by
Please please helppppp!!!!!
595 views
Answer with solution, plz.
1. What is the concentration of the solution by volume when dissolved is used 30 grams & the water is
2 answers
asked by
Rachel
589 views
What is the concentration oh hydrogen ions in a solution containing .676 M HOCN and .413 M NaOCN? The ionization constant of
2 answers
asked by
Juicy
571 views
23g of salt is dissolved in 100g of water at 23 k. what is the concentrarion of solution at this temperarure.
2 answers
asked by
shehzad
572 views
What is the concentration of methanol in a solution prepared by combining 7.85mL of a 3.693M methanol solution with 17.50mL of
2 answers
asked by
Jaden
568 views
0.2 Grams of HCL is dissolved in 0.8g of water. The density of the solution formed is 1.10g/ml.
What is the molarity of the
1 answer
asked by
boo
592 views
The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an
3 answers
asked by
Chem help
572 views
The molal boiling point constant (Kb) for water is ).51oC/m and the molal freezing point constant (Kf) for water is 1.86oC/m.
2 answers
asked by
Sarah
553 views
A solution is made by dissolving 10.9 g of calcium chloride, CaCl2,in enough water to make exactly 500 mL of solution. What is
2 answers
asked by
Shelia
587 views
a solution made from 35 mL of ethanol and 65 mL of water produces by what percent concentration of volume
2 answers
asked by
frances
544 views
A stock solution is prepared by adding 20mL of 0.2M MgF2 to enough water to make 80mL. What is the F– concentration of 20 mL
3 answers
asked by
aDRIAN
575 views
how many grams of AgNO3 would need to be dissolved in 1 liter, 500mL, and 100mL in order to make a 1M solution? need to show
2 answers
asked by
al
571 views
A solution is labeled as ~8M NaOH. How many mL of this solution would be needed to prepare 750mL of a ~0.2M NaOH solution?
2 answers
asked by
Katie
554 views
A pretty confusing question with weird wording:
If the concentration of a compound is 10mg/ml, and its molecular weight is
3 answers
asked by
Autumn
549 views
0.000341 g fluorescein (332.32 g/mol) is dissolved in 255 mL solution of ethanol. The density of ethanol is 0.785 g/mL.
What is
4 answers
asked by
Anon
559 views
Molarity is defined as the number of moles of solute divided by the volume of the solvent
3 answers
asked by
Anonymous
548 views
A 36.0mL sample of 1.20 M KBr and a 56.0mL sample of 0.700 M KBr are mixed. The solution is then heated to evaporate water until
2 answers
asked by
Cecelia
564 views
75.0 mL of a 1.20 M solution is diluted to a total volume of 248 mL. A 124-mL portion of that solution is diluted by adding 111
2 answers
asked by
Daric
545 views
1.00 mL of a 0.0500 M sucrose solution is transferred to a 100 mL volumetric flask, and the flask brought up to volume. 5.00 mL
3 answers
asked by
selina
558 views
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