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Solutions and Concentrations
Page 5
Questions (549)
One liter of buffered solution should be prepared with a general concentration of 0.320M with a pH of 5.83 :
- Pyridine solution
3 answers
asked by
jehan
625 views
If 12.0 ml of a 0.050M sodium acetate is added to 22.0ml of water, what is the final concentration of the NaC2H3O2?
1 answer
asked by
Jae
388 views
What is the m/m% of NaOH in a solution prepared with 40.0 g NaOH and 400.0 g of water
1 answer
asked by
Chin
474 views
25 ml of 3M hno3 are mixed with 75ml of 4.0M HNO3 if volumes are additive then find molarity
2 answers
asked by
sanju kurmi
478 views
what is the volume that must be added to dillute 20.0 ml of 0.1M Hcl to 0.02M Hcl
1 answer
asked by
francime
345 views
I have a 0.00156 M solution of CuSO4*5H2O in water (from 0.0398 g of CuSO4*5H20 in 100 mL of water). How would I calculate the
1 answer
asked by
Ronnie
485 views
Which is more concentrated, 500mL of a .20M solution of NaCl or 250mL of a .25M solution of NaCl?
MMNaCl = 58.44247 M x V = n .5L
2 answers
asked by
Anonymous
464 views
Describe the preparation of 250cm^3 of 0.05M H2SO4 given the following stock bottle solution.
%purity=98 Specific gravity=1.84
2 answers
asked by
Ezinase
484 views
HOW DO YOU PREPARE 1.0mL OF 0.1M NaOH from solid NaOH peiiets?
1 answer
asked by
cosmos esronthe
344 views
You are preparing 500 mL of Denaturation Buffer containing 1.5 M NaCl and 0.5 M NaOH. Your stock solutions are 5 M NaCl and 6 M
2 answers
asked by
sara
538 views
How would you prepare 50ml of
0.2M HCL
1 answer
asked by
noni
324 views
if you dissolve 9 mg of glucose in 5 ml of water .what is the concentration of glucose in %w\v the resulting solution?
2 answers
asked by
Anonymous
930 views
How much water is needed to dilute 25.0 ml of 0.357 mol/L hydrochloric acid to 0.246 mol/L
I got 17.2 is that correct
1 answer
asked by
Anonymous
430 views
You need to prepare 180g of a 10% cream using 30% stock cream and a cream base. How much is needed for each
2 answers
asked by
Brittany
594 views
15g of potassium chloride is diluted in is diluted in 2 L of sterile water for injection.What is the final strength (w/v)?
1 answer
asked by
shanica
392 views
How many mL of 0.203 M HCl(aq) are required to prepare a diluted solution that has a concentration of 0.0433 M in a 100-mL
1 answer
asked by
Bill
381 views
If 3.5 mL of distilled water is added to 1.5mL of a 0.150 M solution of CoCl2, what is the concentration of the resulting
2 answers
asked by
Lia
1,158 views
Explain in detail how to prepare 250. mL of a 0.125 M glucose solution. The formula for glucose is C6H12O6.
2 answers
asked by
Harry
945 views
15 grams of potassium chloride is diluted in 2 liters of sterile water for injection what is the final percentage strength
1 answer
asked by
tammy green
449 views
How will you prepare 500ml of 16%equeous ethanol(46.1g/mol)
2 answers
asked by
Thabo
479 views
In what proportion should you combine 1:30 soaking solution and distilled water to create a 500ml solution of 1:70
1 answer
asked by
Anonymous
390 views
(a) What is the pH of a 6.1 ✕ 10-5 M Ca(OH)2 solution?
(b) What is the H3O+ concentration of the solution? I already know the
1 answer
asked by
Ana
444 views
a. What is the pH of a 6.1 ✕ 10-5 M Ca(OH)2 solution?
b. What is the H3O+ concentration of the solution? I just cant figure out
4 answers
asked by
Ana
381 views
A 25-mL sample of 0.160M solution of NaOH is titrated with 17 mL of an unknown solution of H2SO4. What is the molarity of the
4 answers
asked by
Elizabeth
1,710 views
Assuming 100% dissociation, calculate the freezing point and boiling point of 2.44 m Na2SO4(aq)
2 answers
asked by
LLamaboy
1,187 views
What volume of a solution that is 15.7 % (w/w) lolinic acid (density = 1.64 g/mL) contains 4.25 g of lolinic acid15.
What is the
1 answer
asked by
nene
410 views
Round your answer to the correct number of significant digits and show work.
1. How many grams of NaI would be used to produce a
3 answers
asked by
_Unknown
552 views
1.) A biochemistry student wants to make 4 liters of a phosphate solution using 48.6 g Na2HPO4 (FW=141.96) What is the
2 answers
asked by
Jon
1,000 views
A stock standard contains 140 Eq/L of sodium and 5 Eq/L of potassium. How would the working standard of 140 m Eq/L and 5 m Eq/L
6 answers
asked by
Anonymous
847 views
I have 5ml of 0.07 mol/l Hcl I want to increase the molarity to 1 mol/l by adding minimum volume of hcl 31.2%
density 1.15 kg/l
1 answer
asked by
nebal
327 views
all these questions I got wrong on my homework today ...I'm trying to find out why and what the correct answers were .. please
2 answers
asked by
Tif
584 views
Concentrated sulphuric acid has a density of 1.9 g/ml and is 99% H2SO4 by weight. calculate the molarity of H2SO4 in this acid.
7 answers
asked by
Kvs
3,421 views
what volume of solution does a 3.0 molar solution need to have in order to contain 1.8 moles of sodium sulfate?
1 answer
asked by
Erin
403 views
How would you go about making 250ml of a 20X stock solution of NaCl to dilute later to a final concentration of 50mM? I know
2 answers
asked by
Anonymous
752 views
your lab possesses a stock solution of NaOH whose concentration is approx. 0.1M. you prepare a secondary solution by diluting
2 answers
asked by
holly
667 views
A 890 mL NaCl solution is diluted to a volume of 1.15 and a concentration of 8.00 . What was the initial concentration?
How do I
2 answers
asked by
Whitney
930 views
One teaspoonful diluted to a quart results in a 1/5000 solution. What is the amount of potassium permanganate in grams required
1 answer
asked by
Nick
421 views
What NaCl concentration results when 254 mL of an 0.880 M NaCl solution is mixed with 412 mL of a 0.450 M NaCl solution?
2 answers
asked by
Amanda
567 views
prepare 500 ml of a 1:5 solution using a 1:10 solution and a 1:4n solution. what quantities will be used of each stock solution
3 answers
asked by
cleondra
818 views
A prescription calls for 250ml of a 0.1N hydrochloric acid HCL solution. How many ml of concentrated hydrochloric acid are
2 answers
asked by
Fai
1,076 views
the concentration of HCl, a strong acid is 0.500 M. if 20.0 ml HCl is needed to titrate 40.0 ml of NaOH, what is the
2 answers
asked by
Jessie
892 views
Describe the preparation of 100 mL 0.50 M solution of Fe(NO3)3 from a stock solutiion that is 60%(w/w)Fe(NO3)3 solution with a
2 answers
asked by
BabyMikee
980 views
What is the pH of a 5.06E-2 M aqueous solution of sodium acetate?
I know that I would set this up the same way I did for the
7 answers
asked by
Hannah
403 views
I have 0.500ml of 3M ethanol and then I take 0.250ml of it and put it to 0.250ml of 0.06M phosphate buffer, what is the final
1 answer
asked by
trouble
386 views
A liquid solution of formaldehyde is 37.0% pure. This solution has a specific gravity of 1.037. The molecular weight of
2 answers
asked by
Morgan M
481 views
I know this is easy but it's been a while for me.
Calculate the osmolarity of the following: -25mM CaCl2 -100mg/dl Glucose -0.20
1 answer
asked by
Morgan M
677 views
0.5g of Solid A is dissolved in 1L solvent to give a concentration of concentration 0.5g/L.
UV absorbance spectrum was collected.
1 answer
asked by
angela
366 views
You have a solution of .5 L of 1.74g of NH3 and 4.15g of (NH4)2SO4. How many ml of 14M HCl is required for a pH of 9.00?
I don't
4 answers
asked by
Matt
410 views
molarity of hydrochloric acid=0.5 M-cost of tums package 150 tablets is 9.99 what is the cost of a single tablet
1 answer
asked by
Nadine Anthony
381 views
A 853 solution is diluted to a volume of 1.50 and a concentration of 7.00 . What was the initial concentration? PLEASE HELP
1 answer
asked by
lola
320 views
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