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A solution of thiosulfate ions has been prepared by dissolving 4.5g of Na2S2O3.5H2O in 250 ml of solution.
Calculate the
4 answers
asked by
vicky
1,029 views
Calculate the freezing- and boiling-point changes for a solution containing 12.0 g of naphthalene (C10H8) in 50.0 g of benzene.
4 answers
asked by
Mariah
1,635 views
What is the concentration in % (m/v) of a solution with 75 g K2SO4 dissolved in 1500 mL of solvent?
4 answers
asked by
Ty
1,832 views
A lab technician determines the boiling point elevation of an aqueous solution of a nonvolatile, nonelectrolyte to be 1.95°C.
5 answers
asked by
MaryJ
1,965 views
What is the (a) [H+], (b) [OH-], (c) pH, and (d) pOH of a 0.002 M solution of HNO3?
3 answers
asked by
YBB
945 views
how would you prepare 250 ml of 0.69m al2(so4)3 solution from a 2.0 al2(so4)3 stock solution
4 answers
asked by
Sam
1,061 views
The density of a 60% (m/m) ethanol solution 0.8937g/ml , calculate the molarity of the solution , step by step .
Molar mass of
5 answers
asked by
kaksha
3,522 views
how to make 750ml of 1.5 m solution of naoh
3 answers
asked by
Anonymous
667 views
How would you make .25 Liters of a .1 M MgCl2 solution?
3 answers
asked by
Mayson
549 views
The weight of a china dish with a saturated solution of sodium nitrate at 40°C is 80 g. After evaporating
the whole solution the
4 answers
asked by
Anonymous
1,874 views
What volume of distilled water should be added to 400cm3 of 2.0mol/dm 3 H2SO4 to obtain 0.20mol/dm3 of solution
3 answers
asked by
Joy
1,237 views
How many grams of sucrose are needed to make 875 mL of a 39.0% (w/v) sucrose solution?
4 answers
asked by
Chemistry
2,603 views
prepare 1M 100 ml H2SO4. 98% H2SO4, density 1.84
4 answers
asked by
Anonymous
2,446 views
Calculate the volume of solution of 3.6 M NH4CI needed to prepare 350.0ml of 1.24 M NH4CI.
How many grams of ammonium chloride
3 answers
asked by
Donna
1,025 views
Calculate the grams of solute required to make 2500mL of 90% saline solution?
3 answers
asked by
Morgan
961 views
Suppose your teacher ask you to prepare 250cm³ of 1 Mol dm -³ (1M) of sodium hydroxide for chemistry lesson . How would
4 answers
asked by
Thijien Chikot
285 views
An unknown nonelectrolyte and nonvolatile compound is dissolved in enough pure water to make 229 ml of solution. The vapour
4 answers
asked by
Carly
626 views
A is a solution of trioxonitrate(v)acid (nitric acid) HNO3 of unknown concentration.B is a standard solution of sodium hydroxide
4 answers
asked by
Andriana
1,539 views
15.2% by mass solution of h2o2, density is 1.01g/ml then find the molarity of the sulution.
3 answers
asked by
Upama
2,678 views
The concentration of a certain ionic compound in aqueous solution is 0.186mol/L . It is only solute in the solution. The
3 answers
asked by
Deepa
1,212 views
how would you classify a solution that contains 1.5g of lithium carbonate in 100g of water at 20 degrees
1 answer
asked by
kala
475 views
An unsaturated solution is made by completely dissolving 20.0 grams of NaNO3 in 100.0 grams of water at 20.0°C. (the gram
4 answers
asked by
R
1,535 views
the dencity of 3 molal solution of NaOH is 1.110g/mL calculate the molarity of the solution
4 answers
asked by
anant
1,806 views
Is it always apparent in a solution which component is the solute, for example, in a solution of liquid in a liquid?
2 answers
asked by
Tyran
866 views
Every morning, students across town leave their homes an hour before school begins. Traffic in the area surrounding our school
1 answer
asked anonymously
163 views
Which example accurately describes a solution? (1 point) Responses Polar sugar molecules dissolve in water, which is polar.
1 answer
asked anonymously
92 views
what mass of ammonium chloride can be added to 100g of water at 20 degrees C before the solution becomes saturated
3 answers
asked by
kate
521 views
How much distilled water must be added to .85% solution Of NaCL to make a 70% solution of NaCl
4 answers
asked by
Joan
461 views
Suppose you have a sample of table salt (NaCl) that has a mass of 100.0 grams. If this amount of salt is added to a large beaker
1 answer
asked anonymously
35 views
If you are solving the equation: x3=−2764
and the equation x2=2564 , check all statements that are true about the solutions to
1 answer
asked by
@~@
32 views
Which is true of a solute dissolved in a solvent?
The solute raises the freezing point of the solvent. The solute raises the
1 answer
asked anonymously
24 views
What volume (cm³) of concentrated HI(5.51M)should be used to prepare 125.0cm³of a 0.100M solution
1 answer
asked by
Koleta miriama vurai
6 views
Which action would most likely reduce water pollution?(1 point)
Responses promoting the use of oil and gas promoting the use of
11 answers
asked anonymously
15 views
A solution of LiCl in water is 18.0 wt% LiCl. What is the mole fraction of LiCl?
6 answers
asked by
gaby
7,294 views
A 46.2-mL, 0.568 M calcium nitrate [Ca(NO3)2] solution is mixed with 80.5 mL of1.396 M calcium nitrate solution. calculate the
5 answers
asked by
Michael
6,294 views
A chemist has 10% acid solution and 60% acid solution. HOW many liters of each solution does the chemist need to make 200 L of a
3 answers
asked by
Francisco Ayala
1,778 views
If I want to prepare 5.0 liters of a 0.25 M solution of NH4Cl, how many grams of the salt should I weight out?
5 answers
asked by
Krew
2,277 views
2.78g NaHCO3 dissolve in enough water to make 200.0ml of solution
4 answers
asked anonymously
982 views
A technician measures 1.75 L of a standard solution of hydrochloric acid, HCl(aq), with a concentration of 9.00 mol/L. Determine
4 answers
asked by
Anonymous
969 views
1. How many mL of acetone are needed to prepare a 10% v/v solution in 500 mL of methanol?
2. If a 500mL solution of n-propanol in
4 answers
asked by
double checking
1,692 views
1) The molecular mass of a substance was determined by the freezing point depression technique. The minimum data required for
6 answers
asked by
Hannah
1,979 views
how do you calculate the mole fraction of HCl in an acqueous solution that contains 33.6% HCl by mass?
4 answers
asked by
franco
1,929 views
You have 100 mL of a solution of benzoic acid in water; the amount of benzoic acid in the solution is estimated to be about 0.30
4 answers
asked by
Camille
3,435 views
What volume of ethylene glycol (C2H6O2), a nonelectrolyte, must be added to 13.7 L of water to produce an antifreeze solution
4 answers
asked by
?
981 views
The molarity of a sodium hydroxide solution is 0.2 M. The molar mass of NaOH is 40 g/mol.
If 20 g of sodium hydroxide (NaOH) is
3 answers
asked by
Summer
1,100 views
Match the term with its corresponding definition.
Suspension 1.a chemical formed by the joining of two or more elements while
2 answers
asked by
fe
112 views
1. How many solutions does the equation have? 4x+3=2(2x+9)
a.one solution b.no solution c. infinite number of solutions d.
19 answers
asked by
Anonomys
10,040 views
A solution is prepared by dissolving 5.00 g of ferric chloride in enough water to make 500.0 mL of stock solution. A 50.0 mL
2 answers
asked by
Anonymous
568 views
Show that 𝑞(𝑡) = 𝑞0*(𝑒−𝑡/𝜏) is a solution to this differential equation (𝑅 *(𝑑𝑞/𝑑𝑡) =
2 answers
asked by
Hannah
113 views
how many litres of a solution containing 18 percent sulfuric asid and how many litres of another solution containing 25 percent
3 answers
asked by
Saiful
549 views
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