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Questions (4,270)
if 10 litres of a solution of na2co3 contains 21.2g of na2co3, what is its strength?
4 answers
asked by
brock
747 views
A student is making a salt water solution for a lab experiment. Which of the following would increase in the rate the salt
4 answers
asked by
help me keeps killing me lol haha poopie
308 views
What is the pH of a 0.41 M solution of pyridinium chloride (C5H5NH+Cl−)? (Kb for pyridine is 1.5×10−9.)
Answer in units of
4 answers
asked by
Gabriella
5,410 views
The following solutions are combined:
20 mL of 0.50 M TRIS buffer, pH 7.0 10 mL of 0.25 M KCl 10 mL of 0.30 M sucrose 150 mL dH2O
2 answers
asked by
anna
73 views
Identify the solute with the highest van't Hoff factor: Non-electrolyte, NaCl, MgCl2, FeCl3, MgSO4
4 answers
asked by
luz
3,538 views
I had posted a while back and still couldn't solve this is there anyway you could show me the steps on how u did this? thank you
3 answers
asked by
Dora
561 views
the lab keeps two acid solutions on hand. one is 20% and the other is 35%. how much 20% and how much 35% acid solution should be
3 answers
asked by
carry on
467 views
A 3.50 g sample of KCl is dissolved in 10.0 mL of water. The resulting solution is then added to 60.0 mL of a 0.500 M CaCl2(aq)
4 answers
asked by
Anna
2,379 views
Suggest practical solutions on how any Six of the risky behaviours which have been mentioned can be addressed
4 answers
asked by
Andrew
401 views
Suppose you had 5 gallons of sodium hydroxide solution which had a concentration of two pounds of soduium hydroxide per gallon.
3 answers
asked by
Kisha
746 views
I only need y'all to check my responses. Thanks in advance!
Is (0,3) a solution to the equation y=x+3 Yes**My choice No Is (1,-4)
5 answers
asked by
Derpy Pegasus
449 views
Show your work. Is (1, -7) a solution to the equation y = x - 8? Choose the correct answer.
a) yes b) no
2 answers
asked anonymously
49 views
1. Which value is a solution of the equation
5 - 4x = -3 0 2 -3 1/4 2. Which ordered pair is a solution of the equation y = x - 4
10 answers
asked by
Charlotte
4,685 views
2.which value is a solution of the equation 3-2x=-5?
a.2 b.4*** c.-2 d.1/5 NEED ANSWER ASAP
10 answers
asked by
THAT CAZY GIRL
2,628 views
A solution is prepared by dissolving 15grams of table salt in 70grams of water. Find (a) mass percent of solute (b) mass percent
4 answers
asked by
Araceli
3,003 views
1. In the lab, Deon has two solutions that contain alcohol and is mixing them with each other. Solution A is 40% alcohol and
4 answers
asked by
Amy
5,536 views
The pH of a Ba(OH)2 solution is 10.66. What is the hydroxide concentration? If the solution volume is 125ml, how many grams of
4 answers
asked by
ralph
3,649 views
to create a 0.25 M Potassium Chloride solution. Your mass is 5.00 grams of Potassium Chloride. How many liters of water is
4 answers
asked by
Daniel
2,981 views
Which of the following solutions will have highest freezing point?
A. 0.1M KCl B. 0.05M NaCl C. 1M AlPO4 D. 0.1MMgSO4 ? i need it
6 answers
asked by
Handsomehulk
3,682 views
What is the molarity of a solution prepared by dissolving 8 grams of BaCl2 in enough water to make a 450.0 mL solution?
5 answers
asked by
Anonymous
2,060 views
you have 100ml of water in a beaker. you add 20 ml of table salt. the water level rises to only 105 ml.
16 answers
asked by
Tee
5,245 views
What is the mole fraction of alanine in 0.314m CH3CH(NH2)COOH(aq)?
4 answers
asked by
Anonymous
1,396 views
14. Describe the number of solutions for the equation
-2(y-3) =2y-6 a. one solution b. no solution c. infinite solutions my
4 answers
asked by
meerandoi
1,039 views
An aqueous solution that is 10.0 percent sulfuric acid (H2SO4) by mass has a density of 1.143 g/mL. Determine the molality of
4 answers
asked by
tyler
4,105 views
Elisa adds blue food coloring to a beaker full of water. She watches as the food coloring slowly disperses throughout the water.
5 answers
asked by
NAV
640 views
If the density of a 40.0 mass % solution of ethylene glycol in water is 1.0514g/mL at 20 celcius what is the molarity
4 answers
asked by
RB
1,252 views
As the number of solute particles in a given volume of solution increase will:
freezing point increase, vapor press decrease? or
4 answers
asked by
Thomas
2,436 views
In the question Consider a 0.90 M Al(NO3)3 solution. This solution has a nitrate ion concentration of . . . .
How do you figure
4 answers
asked by
Ken
4,142 views
2mL of a 10M solution of Compound A is taken and 48mL added. 1mL of this solution is then taken and dried to dryness before
4 answers
asked by
jake
810 views
A 5M solution is diluted 1/10 and again 1/5. What is the concentration of each dilution?
4 answers
asked by
T
812 views
what is the concentration of a solution made by mixing 22.0 g of salt with 200 mL of water? assume that the volume of the water
13 answers
asked by
Gina
2,950 views
if you dissolve 350 g of K(2)CrO(4)in 2.4 kg of water, what is the molality of the solution?
4 answers
asked by
crystal
869 views
how much salt must be added to how much water to create 10ml of a
10% saline solution.
4 answers
asked by
amy
1,243 views
You have 67.0 mL of a 0.400 M stock solution that must be diluted to 0.100 M. Assuming the volumes are additive, how much water
4 answers
asked by
Anonymous
2,279 views
In a 1.0x10^-6 M solution of HNO3(aq) at 25 degrees C, identify the relative molar amounts of species from most to least.
HNO3
5 answers
asked by
Mer
13,643 views
How Would 250ml Of 0.15M kno3 solution be preared
6 answers
asked by
Anonymous
2,592 views
How much of each starting material would you use to prepare 2.00 L of each of the following solutions?
0.240 M NaOH from 1.00 M
4 answers
asked by
lyne
1,854 views
What is the molality of an aqueous solution that is 10.0% ethanol, C2H5OH, by mass?
26 answers
asked by
Marcus
4,139 views
When 2.25 g of sodium hydroxide (NaOH) was dissolved in 150.00 g of water a value of 11.00oC was obtained for ΔT.
1. Calculate
5 answers
asked by
Kales
5,603 views
Which of the following solutions has a molarity different from the rest?
a. 6 N H3PO4 b. 4 N Ca(OH)2 c. 8 N HC2H3O2 d. 2 N NH40H
4 answers
asked by
Peabody
3,167 views
If you take a 15.0-mL portion of the stock solution and dilute it to a total volume of 0.700L , what will be the concentration
4 answers
asked by
meaghan
7,036 views
density of 20% by mass C2H6O2 solution in water is 1.03 g/mL. find the molarity of the solution.
6 answers
asked by
lily
3,310 views
A student placed 19.0g of glucose (c6h12o6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then
4 answers
asked by
Heather
8,073 views
What is the concentration of a solution made by diluting 95 mL of 6.0 M HCl to a final volume of 750 mL
5 answers
asked by
Tish
6,330 views
Find the percent by mass of sodium chloride in a 1.35 M NaCl solution. The density of the solution is 1.06 g/mL..............how
4 answers
asked by
wade
4,682 views
In a solution prepared by mixing CH3OH with H2O the major species pesent are
1. a. CH3+, OH, and H2O 2. b. CH3O, H+, and H2O 3.
7 answers
asked by
Mark
13,941 views
In a 1.0x10^-4 M solution of HClO(aq), identify the relative molar amounts of these species:HClO, OH-, H3O+, OCl-, H2O
6 answers
asked by
karla
12,816 views
An aqueous stock solution is 85.0% H2SO4 by mass and its density is 1.83 g/mL. What volume of this solution is required to make
4 answers
asked by
Wes
2,075 views
You have a stock solution of 15.8 M NH3 . How many milliliters of this solution should you dilute to make 1350 mL of 0.300 M NH3
4 answers
asked by
Jennie
3,564 views
Calculate the grams or milliliters of solute needed to prepare the following solutions.
1.)75. g of a 7.0 % (m/m) KCl solution
4 answers
asked by
maria
7,041 views
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