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Concentration
Page 3
Questions (659)
In clinical lab reports, some concentrations are given in mg/dL. Convert a Ca2+ concentration of 3.5 mg/dL to weight/volume
4 answers
asked by
Jen
4,172 views
for the equilibrium 2H2S(g)=2H2(g)+S2(g) Kc=9.0x10^-8 at 700 degree cl the initial concerntration of the three gases are 0.270M
4 answers
asked by
manaf
1,717 views
calculate the percent concentration of each of the following solutions
1. 2.78g of NaHCO3 dissolved in enough water to make
4 answers
asked by
SHORNORA
920 views
A solution of NaOH (aq) contains 8.2 grams of NaOH(s) per 100.0 mL of solution. Calcualte Ph and POH at 25 degrees celsiuis
4 answers
asked by
Jason
1,607 views
Consider the following equation:
N2O4(g)+ 2NO2(g) Kc= 5.8 x 10^-3 If the initial concentration of N2O4(g)= 0.040 M and the
4 answers
asked by
Jim
2,245 views
how much sugar is dissolved in 500 grams of a solution if the solution is 70 percent sugar by mass?
Also, What is the
5 answers
asked by
Lisa
1,792 views
What quantities are compared when the concentration of a solution is measured?
3 answers
asked by
Lisa
904 views
15.00 mL of 0.200 M KI is combined with several other solutions (none of which contain K+) to produce a final solution with a
4 answers
asked by
lino
582 views
What volume of .225 M aluminum chloride solution contains 5.0 g solute?
4 answers
asked by
Susan
583 views
The concentration of ammonium phosphate, (NH4)3PO4, is 1.60 M. What is the concentration of
ammonium ions in solution?
4 answers
asked by
Anonymous
1,623 views
Silver nitrite, AgNO2 (47.8 mg), was dissolved in water to make 10.00 mL of solution. Then 3.00 mL of that solution was used to
4 answers
asked by
ODCA
3,098 views
what is the molarity of 275mL of a solution containing 23.83 mg of Mg Cl(2)<small 2
4 answers
asked by
melissa
454 views
A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of water. The density of the resulting
solution is 1.05 g/mL. The
4 answers
asked by
BenY
3,498 views
You wish to prepare a 10% CaCl2 solution. Only CaCl2 * 10H2O is availalbe. How many grams of the hydrated compound are required
4 answers
asked by
j
1,446 views
If you dilute 18.0 mL of the stock solution from part a) to a final volume of 3.00 L, what will be the concentration of the
4 answers
asked by
Anonymous
629 views
A solution contains 0.0390 M Pb2 (aq) and 0.0390 M Sr2 (aq). If we add SO42–(aq), what will be the concentration of Pb2 (aq)
5 answers
asked by
John
3,424 views
To prepare one liter of 2.5 M solution of HCl, what is the volume of concentrated HCl (37% p/p, d = 1.19 g/mL) to be used?
4 answers
asked by
Nadia
2,531 views
What is the percent concentration of 0.4 M K2SO4 solution? Atomic mass: K-39g,S-32g, O-16g
4 answers
asked by
mustafa
1,003 views
Calculate the volume of concentrated reagent required to prepare the diluted solution
17 M H3PO4 to prepare 939 mL of 6.7 M H3PO4
4 answers
asked by
X
1,642 views
What is the concentration, in parts per million (ppm), of an aqueous solution of copper sulfate II (CuSO4) at 12% by weight?
3 answers
asked by
damon
716 views
A solution contains 2.65g of anhydrous Na2O3 in 200cm³ of the solution. Calculate the concentration of the solution in g/dm³
4 answers
asked by
Sandra
837 views
Calculate the concentration of the initial nitrate stock solution (in ppm) if exactly 0.361 g of
KNO3 is dissolved in a 1 L
3 answers
asked by
Angel
932 views
if 5.00 ml of 1.66x10^-1 M HCl solution is diluted to exactly 250.0 ml with water, what is the concentration of the resulting
3 answers
asked by
Alex
2,556 views
25g of NaCl is deissolved in 100g of water. what is the concentration in percentage by mass?
4 answers
asked by
Riana
2,406 views
a sugar solution contains 26 g of sugar in 0.50 l of solution.waht is the concentration in g/l.
4 answers
asked by
vera
2,171 views
Part A
6.00×10−3 mol of HBr are dissolved in water to make 16.0L of solution. What is the concentration of hydroxide
3 answers
asked by
Deane
2,054 views
When 80.4 moles of calcium acetate are
dissolved in enough water to make 222.2 milliliters of solution, what is the molarity of
3 answers
asked by
Sarah
576 views
You have 250 mL of a 0.80 M solution of silver nitrate AgNO3 (169.87 g/mol) dissolved in water. How many grams of AgNO3 does the
4 answers
asked by
sara
1,154 views
The pH of a 0.10 M solution of ammonia is 11.1. Find the hydroxide concentration.
3 answers
asked by
Jazmin
661 views
1.)An aqueous solution is 34.0% H3PO4 by mass and has a density of 1.207 g/mL. What is the molarity of the solution? AND what is
4 answers
asked by
anonymous
4,640 views
An aqueous CaCl_2 solution has a vapor pressure of 82.1mmHg at 50C. The vapor pressure of pure water at this temperature is
4 answers
asked by
melissa
826 views
If ten drops of 0.3 M HCl are mixed with ten drops of 0.3 M Na2S2O3, what will be the concentration of each chemical in the
4 answers
asked by
Nancy
703 views
What concentration of Ag+ is in equilibrium with 3.0×10−6 M Co(CN)3−6 and Ag3Co(CN)6(s)?
1 answer
asked by
Jack
393 views
QUESTION 21
Sam weighed out 49.99g of sodium hydroxide (NaOH). The final volume of his solution is 750mL. What is the molarity of
2 answers
asked by
red
502 views
Calculate the concentration of a solution prepared by adding 15.00 mL of
1.92E−3M KMnO4 from a buret into a 50.00 mL volumetric
3 answers
asked by
Julie
555 views
Toxic chemicals in drinking water usually are reported and a safety level specified in units of parts per million (ppm) by mass.
3 answers
asked by
Tiffany
805 views
mole fraction of solute is 0.4 what is molality of solution
3 answers
asked by
Manish
569 views
At 2000 ∘C the equilibrium constant for the reaction
2NO(g)←−→N2(g)+O2(g) is Kc=2.4×103. The initial concentration of NO
3 answers
asked by
Braxten
2,440 views
Only 6M KOH was present on the reagent shelf- there was no 6M NaOH. explain what effect this substitution has on the test for
3 answers
asked by
hira
1,305 views
The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same thing as weight, but the
3 answers
asked by
jackson
2,699 views
An aqueous solution is 40.0% by mass hydrochloric acid, HCl, and has a density of 1.20 g/mL.
The molality of hydrochloric acid in
4 answers
asked by
yhea
1,685 views
Find the concentration of Ag+ in a saturated solution of AgBrO3 that also contains 0.02M LiNO3, 0.02M KClO4 and 0.01M NaF.
4 answers
asked by
Ashley
1,101 views
a solution of h2so4 (aq) with a molal concentration of 6.25 m has a density of 1.3 g/mL. what is the molar concentration of this
4 answers
asked by
Felicia
2,379 views
which of the following 0.10M solutions is basic?
A LiCl B K3Po4 C NaCLO4 D NH4NO3 Is it C?
3 answers
asked by
Shreya
839 views
What is the weight/ weight% of a solution made by dissolving 12.0g of NaC1 in 100.0 g of water?
3 answers
asked by
Mira
534 views
Calculate the mole fraction of acetic acid in vinegar, assuming that vinegar is 5.00% acetic acid(by mass) and that the density
6 answers
asked by
Anonymous
1,915 views
When a solution of 6M HCl is made from a stock of concentrated HCl by adding an equal volume of water, why is the concentration
3 answers
asked by
Kathleen
1,296 views
An aqueous solution of Na2SO4 has a molal concentration of 0.293 mol kg-1. Its density is 1.0350 g mL-1.
Calculate the molar
10 answers
asked by
write2khin
2,236 views
E is a solution of dibasic acid H2X containing 3.25g per 250cm^3 of solution F is 120mol/dm^3 of KOH solution ,calculate the
3 answers
asked by
Abisola
505 views
A solution of sodium carbonate contains 1.06g of Na2CO3 dissolved in 100ml of water. Calculate its concentration in normality.
3 answers
asked by
Thu
1,800 views
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