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Solutions and Concentrations
Page 9
Questions (549)
A bottle of commercial hydrochloric acid solution So is labeled 37% composition by mass, density 1.19 kg/L.
Calculate the
2 answers
asked by
angy
702 views
. If 20.0 mL of a 0.10 M HCl solution is mixed with 10.0 mL of a 0.25 M HCl solution, what is the final concentration of HCl
3 answers
asked by
sarah
703 views
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a 25cm³ aliquot of ammonium iron(ii) tetraoxomanganate(vii) containing 32.9g of its salt in 250cm³ solution, needed 25cm³
1 answer
asked by
Joel
710 views
Assume that 268mL of 5.00M NaOH are diluted to a final volume of 574mL with water. What is the final molarity of NaOH (FM=40.0).
2 answers
asked by
Morgan
708 views
An aqueous sodium salt (NaCnH2n+1O3) solution has an osmotic pressure of 2.041 atm when 1.068 g of the salt are dissolved in
2 answers
asked by
Ceamus Angelina
711 views
A 1.250 g mass of standard aspirin is dissolved in approximately 20 mL of 1 M NaOH. This solution is added to a 250-mL
3 answers
asked by
Anonymous
713 views
A 0.39 M solution of a weak acid is 3.0% dissociated. Calculate Ka.
2 answers
asked by
Kaleen
704 views
Describe in detail by words how to prepare 200ml of .150M HCl from a 1.00 M HCl stock solution? Need help with this please?
i
2 answers
asked by
vince11
714 views
If 25.0mL of sodium nitrate solution (0.100mol/L) is added to 10.0mL of sodium carbonate solution (0.150 mol/L), what is the
5 answers
asked by
Tom
706 views
1) To prepare a 200 mL of aqueous stock solution X, you transferred 50 mL of a known concentration solution into a 200 mL
4 answers
asked by
Brad
707 views
2.00 L of 0.800 M NaNO3 must be prepareds from a solution which 1.50 M in concentration. How many mL of the 1.50 M are required
2 answers
asked by
Jessica
662 views
1. calculate the volume of concentrated HNO3 (68%)that is needed to prepare stock solution 0.25M in 1000mL volumetric flask.
4 answers
asked by
Susan
697 views
What is the concentration of a solution prepared by diluting 25.0 mL of HCl 0.750 mol/L to a final volume of 500. mL?
5 answers
asked by
Kate
697 views
Concentrated nitric acid is 16M. What volume of nitric acid must be diluted must with distilled water to prepare 5L of 0.1M
2 answers
asked by
please help
691 views
What is the concentration of a solution prepared by diluting 25.0 mL of HCL 0.750 mol/L to a final volume of 500.mL?
4 answers
asked by
April
683 views
Suppose you dilute 20.0 mL of a 0.130 M solution of Na2CO3 to exactly 100.0 mL. You then take exactly 15.0 mL of this diluted
2 answers
asked by
Julian
673 views
Describe in detail how you would prepare 500 ml of 0.1 M HCl from 6 M HCl stock solution.
2 answers
asked by
ryan
665 views
A is a solution of trioxonitate acid of an unknown concentration, B is a standard solution of sodium hydroxide containing 4.00g
2 answers
asked by
Arowolo
658 views
Hey, I am having a real hard time getting the answers to the problems. Any help would be greatly aprreciated!
1. When 11 mL of a
2 answers
asked by
chelsea
661 views
How would you prepare 2.25L of a 3.00M solution from a 15.0M stock solution?
2 answers
asked by
mona
637 views
You are asked to bring the pH of 0.500L of 0.450M NH4Cl to 7.00.
a) Which of the following solutions would you use: 10.0M HCl or
1 answer
asked by
tomi
655 views
If it requires 54.7mL of a 0.0765 M HCl solution to complete neutralize 25.0 mL of a KOH solution, what is the molarity of the
6 answers
asked by
katie
664 views
A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a
0 answers
asked by
Paul
656 views
Phosphate standards used to generate the calibration curve are usually made by first preparing a stock solution of known
2 answers
asked by
Khaalid
661 views
In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure.
1 answer
asked by
Melody
647 views
Need Help!! Describe how to make 2.5L of 0.1M HCL solution from 12M HCL concentrated solution and water.
I got help earlier but
2 answers
asked by
debbie
643 views
I've been working on this problem for hours and cant figure it out. I know it should be simple, but I'm stuck...
The question
7 answers
asked by
James
656 views
If we want to prepare 125 mL of a 1.245 M aqueous KCl solution from a 7.134 M aqueous KCl solution, how many mL of the 7.134 M
2 answers
asked by
Leah
642 views
Distilled water normally contains dissolved CO2. When preparing NaOH standard solutions, it is important to use CO2 free
1 answer
asked by
anonymous
636 views
(I need help with these two questions. I don’t know how to solve it.)
1. A student takes 215mL of a 5.0M HCI solution and
3 answers
asked by
Samantha
618 views
determine the molarity of each of the ions present in the following aqueous salt solutions
1.20M MgSO4
2 answers
asked by
rise
614 views
What will be the amount of para-nitrophenol (PNP) in solution if 454.9 mL of 2.15 *10-2 M PNP solution is mixed with 92.7 mL of
3 answers
asked by
sean
616 views
If a 0.01M Mn(NO3)2 solution has an ammonia concentration of 6.0M, would a precipitate form? Calculate the ion product and
2 answers
asked by
jojo
611 views
how to prepare approximately 100 ml of a .12M copper (II) chloride solution using a 50.5% by mass copper (II) chloride that has
2 answers
asked by
ste
602 views
What is the normal concentration of an HNO3 solution if 412 mL of the solution is titrated by 147 mL of 2.03-N NaOH?
What is the
2 answers
asked by
Lauren
608 views
a 230.0ml sample of a 0.275 molarity solution is left on a hot plate over night the folowing morning the solution is 1.5
2 answers
asked by
kristen
609 views
Prepare 30mL of a stock KI soln by mixing 10.0mL of the 0.03M KI in 0.2M KNO3 with 20.0mL of the .2M KNO3
Determine the
2 answers
asked by
Maddy
601 views
(3 pts) The stockroom prepared a solution by dissolving 0.2300 g of Erythrosin B (MW = 879.87 g/mol) in DI water in a 250.00 mL
2 answers
asked by
Anonymous
608 views
The label of a bottle containing a solution So of hydrochloric acid carries the following indications :hydrochloric acid of
2 answers
asked by
vicky
608 views
Suppose the osmotic pressure of blood at 37 °C is 7.65 atm and
you are preparing an intravenous (IV) NaCl solution for a
2 answers
asked by
Lola
582 views
Describe how you would prepare 90 mL of a 5 mM NaCl solution from a 2 M NaCl stock solution.
Describe your actions–exactly what
2 answers
asked by
Ki
590 views
Calculate the molarity of each ion in 0.300 M Na2SO4. Enter a zero for an ion that doesn't occur in the compound.
______ M Na1+
2 answers
asked by
MBH
606 views
if one third of 100g of 27% aqueous sugar solution is taken in a beaker and 10g of sugar is added to it , the concentration of
2 answers
asked by
Shivangi
580 views
You weigh out 196.07mg ferrous ammounium sulfate (FW 392.14) to prepare 250mL of solution which is 0.002M with respect to that
3 answers
asked by
Ken
591 views
In the laboratory you will be provided with a 1.0 x 10-5 M primary stock solution of fluorescein (MW=332.31g/mol). The
3 answers
asked by
Guy
586 views
In order to determine the concentration of a solution of Carbonic Acid (H2CO3), a sample was placed in a buret and titrated with
2 answers
asked by
Andrew
569 views
If a student used 11.54mL of their NaOH solution to neutralize 10.00mL of a 0.445M KHP solution, then what is the concentration
3 answers
asked by
Ari
587 views
Physicain elects to re-hydrate the patient br intravenous(IV) administration of 2.0 L of 0.45% (w/v) of NaCl. 0.45%9w/v) =
2 answers
asked by
Monica
589 views
Pb(NO3)2(aq) 2 x 10-3 M and Na2SO4(aq) 2 x 10-3 M
Identify the ions that are present in each solution, and calculate their
3 answers
asked by
Sam
563 views
Find the number of mg Na2co3 FW = 106g/mol required to prepare 500ml of 9.2ppm NA solution.
ppm = mg/L 9.2mg/1000ml x= 0.0092 x
2 answers
asked by
Fai
571 views
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