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Chemical Solutions
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Questions (280)
Calculate the pH of the buffer system of 0.20M K2HPO4/0.25M KH2PO4
4 answers
asked by
Yeah
611 views
Determine the concentration of NO3- in each of the following aqueous solutions. (Assume complete dissociation of each compound.)
2 answers
asked by
Nicole
1,026 views
how we prepare 0.5 mol of solution of hcl in 70ml in water
1 answer
asked by
asif
326 views
describe the preparation of 2litres of 0.2M acetate buffer of pH 5.5,starting from 2.5M solution of acetic acid and 2.5M
2 answers
asked by
OCHAI
873 views
how to calculate the weight of solute req'd to prepare 1 liter of 1 normal of:
a.) LiOH b.) phosphoric acid HELP.
1 answer
asked by
James
339 views
How to prepare 1mol conc. Sol
1 answer
asked by
Anonymous
286 views
How many grams of CaCl2 would be dissolved in 1.4 L of a 0.11 M solution of CaCl2?
1 answer
asked by
yanely
428 views
The volume strength of 1.5 N H2O2 is.......
3 answers
asked by
Aman
1,839 views
Can a solution of CrCl3 be stored in an aluminum container? I did the math part- E= 2.45 (approx)
3 answers
asked by
scilover
449 views
Preparation of 0.1m H2S04 of 500cm3 flask
1 answer
asked by
Kenechukwu
303 views
0.012moldm^3 of H2SO4 was prepared in 2 litre of volumetric glass.calcute (a)mass concentration. b.moles of H2SO4 used.
1 answer
asked by
Jummy
372 views
How many g of NaOH are in 10 ml 0.1 M solution?
How do you find this out, what are the steps?
1 answer
asked by
Thaddeus
260 views
How many milliliters of 0.5M NaOH must be added to 200 mL of 0.1M NaH2PO4 to make a
buffer solution with a pH of 6.9?
2 answers
asked by
Joanna
1,181 views
What is the molal concentration of a solution made by dissolving 34.2g of sucrose (C12H22O11) (molar mass 342.34)
2 answers
asked by
Cassidy
648 views
Describe how to make 175mL of a .10M tin(II) chloride solution??
1 answer
asked by
Destry
345 views
.5 grams of pure copper sulfate powder and 2L of water were used to create a copper sulfate solution with a concentration .5ppm.
1 answer
asked by
Michelle
421 views
given the concentration of 125.0mg/L of Fe(2+)in the stock solution and the volume used which is (1.00mL) how do i calculate the
1 answer
asked by
Anonymous
444 views
How grams of NACL are present in a 250-g solution containing 9% NACL?
2 answers
asked by
sharlyn baquita
590 views
I got NaOH 7%, its density is 1,08g/ml.
Calculate the molar concentration
4 answers
asked by
Martins
359 views
What is the pH of a solution that is 0.0 100 M in HClO and 0.0300 M in NaClO
2 answers
asked by
chemistryhelpneeded
542 views
100 ml of agno3 at 0.1g/ml
4 answers
asked by
Anonymous
558 views
How much NaC3H5O3 (in grams) is needed to create a 1000 ml volume of Ringer’s lactate solution?
1 answer
asked by
Joe
353 views
Hydrochloric acid is sold as a concentrated acqueous solution.
If the molarity of HCl is 12.0 and its density is 1.18 g/ml.
2 answers
asked by
Daniel Forero
498 views
How many grams of CaCl2 would be required to be added to water to prepare 1liter (1000ml) of a 1.72% (w/v) aqueous solution of
2 answers
asked by
Tina
531 views
what is the procedure and materials needed to make a 0.10m solution of Potassium Hydroxide?
1 answer
asked by
meghan
411 views
Calculate the concentration, in molarity, of a solutiion prepared by adding 9 mL of water to 1mL of 0.1 M of HCl
3 answers
asked by
Adrian
403 views
I don,t know if this helps but the Soln of CUSO45H2O is 1%, the mass solution is 100g and the mass of CUSO4 5H2O is 1g.
1 answer
asked by
Lorraine
391 views
A solutionof 2.50g of a compound having the empirical formula C7H6O2 in 25.0g of benzene is observed to freeze at 4.3 degree
2 answers
asked by
Anonymous
1,030 views
0.238 M glucose (C6H12O6) in water (Assume the density of the solution is 1.00 g/mL.)
4 answers
asked by
Rukky
352 views
You are given 350 mL a stock solution of 1.66E-02 M benzoic acid, MW = 122.125 g/mol.
Answer the following questions. A. What is
3 answers
asked by
Natasha
555 views
A 21.18 mL of 0.250 M NaOH is titrated with a H2SO4 solution. The initial
volume of H2SO4 was 13.28 and the final volume of H2SO4
1 answer
asked by
Ivy
479 views
how many grams of NaOH are needed to make a 30% w/w solution using deionized water as the solvent
1 answer
asked by
Wanda
453 views
Nitric acid is abailable commercially at a concentration of 16M. What volume would you use to prepare 750 ml of a 0.20 M
2 answers
asked by
Julie
502 views
A perchloric acid solution is composed of 168.75 g of perchloric acid and 81.25 mL of pure water. What is the percent by mass of
3 answers
asked by
Helpplease
893 views
I have a bottle of 95% ethanol purchased from the manufacturer.
Normally, when it is not stated, does it mean 95% w/w ethanol? I
2 answers
asked by
annie
1,497 views
An aqueous solution of hydrogen peroxide, H202 (MW=34.01amu), is labeled 10.0% by weight. What is the molal concentration of
1 answer
asked by
Donna
450 views
how many mL of .100 M of acetic acid and .100 M of NaOH, would be need to make the volume 1.0 liters and have a pH7.00 if
3 answers
asked by
josh
376 views
What weight of NaOH would be required to prepare 3000 ml of a 2.5M solution?
3 answers
asked by
Tamaka
818 views
WHAT IS A CHEMICAL SOLUTION AND GIVE AN EXAMPLE?
2 answers
asked by
DANNY
941 views
Acetone, C3H6O, is the main ingredient of nail polish remover. A solution is made up by adding 35.0mL of acetone(d=0.790g/mL) to
2 answers
asked by
Mandy
836 views
1. You dissolve 157.1 g of ammonium nitrate in a 250 mL volumetric flask and add water to the mark (call this solution A). You
1 answer
asked by
Kelsey
614 views
I'm doing an experiment and I'm supposed to have neutral basic and acid samples of solution.
I just wanted to make sure that I
3 answers
asked by
~christina~
1,063 views
<b>Commercial hydrazine is sold as a 64% solution. Using that as your starting material, how would you prepare a 5% solution of
5 answers
asked by
~christina~
665 views
what mass of sodium hydroxide, NaOH, must be dissolved to make 460 ml of a 1.10 M solution
1 answer
asked by
erica
462 views
How would you make 300ml of a mixture of toluene and hexane in a ratio of 70:30 respectively?
~I really don't know how I would do
4 answers
asked by
~christina~
452 views
What is the average ion concentration in a 7.9 mL saturated solution of calcium hydroxide containing calcium chloride (CaCl2)?
1 answer
asked by
Erica
512 views
What is the mass percent of sucrose (C12H22O11, Mm=342 g/mol) in a 0.371-m sucrose solution?
3 answers
asked by
Cheyenne
1,901 views
A chemist must dilute of M aqueous magnesium fluoride solution until the concentration falls to M . He'll do this by adding
4 answers
asked by
jay
1,703 views
What is the vapor pressure at 23 degree C of a solution of 1.20g of naphthalene, C10H8 in 25.6 g of benzene, C6H6? The vapor
4 answers
asked by
Lauren
1,393 views
A sulfuric acid solution containing 571.6g of H2SO4 per of solution has a density of 1.329g/cm3. Calculate (a) mass percentage
(b
7 answers
asked by
Anonymous
1,225 views
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Parent Categories (6)
Chemistry
Concentration
Laboratory Materials
Science and Chemistry
Science/Chemistry
Stoichiometry