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Concentration calculations
Page 10
Questions (747)
hey drbob222, where did u get 500ml from? question is: 1.00 mL of a 0.0500 M sucrose solution is transferred to a 100 mL
2 answers
asked by
selina
856 views
how do i prepare a 500g/L solution of ethylene glycol
2 answers
asked by
chidi
794 views
A student must make 500 mL of a 1.5 M HCl solution. The student has plenty of water and a stock solution of 6.0 M HCl to use.
4 answers
asked by
Katie
822 views
A lab assistant wants to make 5 liters of 27.2% acid solution. If solutions of 30% and 16% are in stock, how many liters of each
2 answers
asked by
annie
807 views
An experiment requires 0.3 M NH3(aq). The
stockroom manager estimates that 15 L of the base is needed. What volume of 15 M
2 answers
asked by
Madi
1,309 views
A chemist makes 460 mL of magnesium fluoride (MgF2) working solution by adding distilled water to 20.0 mL of a 18.8 umol/L stock
1 answer
asked by
Nadia
45 views
How do I do this problem
Assume you dissolve 2.56 g of malic acid, C4H6O5, in half a liter of water (500.0 g). Calculate the
1 answer
asked by
Ann
1,091 views
How many grams of hydrogen peroxide (H2O2) must be added to 1,500 ml of water to produce a concentration of 1.33 m (molal
2 answers
asked by
Damon
831 views
Calculate normality of 27% H2SO4
4 answers
asked by
Akshay
796 views
250-mL volumetric flask, 125 mL of a 6.0 M hydrochloric acid was added. This was then diluted with more water to reach the
2 answers
asked by
Kally
815 views
I have two that I can not figure out:
#1: calculate the MOLALITY of 10.00 g/L of the salt, if its molar mass is 100.0 g/mol and
1 answer
asked by
sam
821 views
A chemist has one solution of 20% acid and another of 50% acid. how many millimeters of each are needed to obtain 30 ml of 30%
2 answers
asked by
TJ
791 views
Hello, I need help with calculations for lab. I prepared excess NaOH and HCL solutions (unknown conc., ~0.1M). Then I
5 answers
asked by
Pavel
857 views
My prelab is telling me to find the initial concentrations of I(^-) and S208(^2-) given the following reaction:
25 mL of 0.2 M KI
3 answers
asked by
Louise
801 views
At 25°C, K = 0.090 for the following reaction.
H2O(g) + Cl2O(g) equilibrium reaction arrow 2 HOCl(g) Calculate the
1 answer
asked by
Ann
804 views
How many mL of 6.00 M alcohol are needed to prepare 200. mL of 2.50 M alcohol solution?
2 answers
asked by
Finn
773 views
It takes 62 mL of 0.124 M KOH to neutralize
46.7 mL of H2SO4 solution. What is the concentration of the H2SO4 solution? Answer in
2 answers
asked by
cheri
775 views
An aqueous antifreeze solution is 40.0% ethylene glycol (C2H6O2) by mass. The density of the solution is 1.05 g/cm3. Calculate
1 answer
asked by
Kyle
801 views
A lab tech had accidentally set out 16M HCl for this experiment. How much ( in mL) 16M HCl is needed to make 450mL of a 3M HCl
3 answers
asked by
Christina
779 views
a 7.50 by mass aqueous ammonia, NH3,solution has a density of 0.973 g/mol. Calculate molality and molarity? Need your ASAP
2 answers
asked by
Yesh
768 views
You need to make an aqueous solution of 0.233 M magnesium nitrate for an experiment in lab, using a 125 mL volumetric flask. How
2 answers
asked by
Ashley
787 views
Calculate the sodium ion concentration when 50.0 mL of 2.0 M sodium carbonate is added to 100.0 mL of 3.0 M sodium bicarbonate.
2 answers
asked by
Will
777 views
A sample of 7.83 grams of NaOH is dissolved
into 620 mL of aqueous 0.250 M NaOH (as- sume no volume change). This solution is
2 answers
asked by
Anonymous
780 views
If 33.7 grams of LiOH dissolve in enough water to make a 231-gram solution, what is the concentration in percent by mass?
2 answers
asked by
Josh
767 views
a drug is supplied as a 20 mg/ml solution in a 50 ml vial. you need to make 15 ml of a 10 mg/ml solution. how much concentrate
2 answers
asked by
kate
734 views
20.0cm of H_{2}*S*O_{4} reacts with 25c * m ^ 3 of 0.200 mol/dm³ NaOH.
The equation for the reaction is shown. H_{2}*S*O_{1} +
1 answer
asked anonymously
35 views
Make up a 500mL solution of 4.8M solution HCl (HCl gmw= 36.5g)
3 answers
asked by
Dena
735 views
A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a
3 answers
asked by
Paul
771 views
Household vinegar is acqueous 5.00%,acetic acid solution(by mass),if its density is 1,01 g/ml.calculate the mole
2 answers
asked by
Marcia
755 views
What volume of 17 M sulfuric acid must be used to prepare 0.15 L of 1.78 M H2SO4?
3 answers
asked by
Ken
735 views
To make 250 ml of a 5%(w/v) calcium carbonate solution, how many grams of calcium carbonate will I need?
3 answers
asked by
Chris
744 views
how many milliliters of 5.5M H2so4 must you use to prepare 500ml of 0.2M sulfuric acid solution? Please hurry!!!!!!
2 answers
asked by
grant
731 views
C(s) + H20(g)↔ CO(s) + H2(s)
the equilibrium constant for this reaction is 4.251 x 10^-2 at 800 K. if the equilibrium
1 answer
asked by
Someone
748 views
How many mL of a 0.90% (m/v) NaCl stock solution will you need to to prepare 250 mL of a 0.225% m/v NaCl solution?
3 answers
asked by
nate
738 views
An ice-bath made with sodium chloride will be 9 ± 1 oC when the solution is about 23% sodium chloride by mass. The density of
5 answers
asked by
Jamie
866 views
The standard solution of FeSCN2 (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance
4 answers
asked by
Blair
723 views
Use two concentration tables to calculate the concentrations of the species present in a 0.0400 M solution of CsBrO.
a.[HBrO]
2 answers
asked by
J
714 views
My prelab is telling me to find the initial concentrations of I(^-) and S208(^2-) given the following reaction:
25 mL of 0.2 M KI
2 answers
asked by
Louise
715 views
a solution formed by mixing 50ml of 10.0 M NaX with 50ml of 2.0x10^3M CuNO3.Assume that Cu(l) forms complexions with X asn
1 answer
asked by
Tat
687 views
indicate the concentration of each ion presentin the solution formed by mixing 20mL of .1M HCL and 10mL of .22 M HCL
2 answers
asked by
fdg
707 views
If 14.50mL of 0.25M sodium hydroxide reacts completely with 25.0 mL of hydrochloric acid, what is the concentration of the
2 answers
asked by
mo
712 views
Calculate the mass percent concentration of a solution made by dissolving 5.00g of NaCl in 25.0g of water?
I got 5.00g/25.0g=0.2
4 answers
asked by
Sarah
718 views
Using the data collected for part c on your data sheet and assuming the density of the vinegar is 1.00g/mL,
1) calculate the
2 answers
asked by
Josh
693 views
You want to prepare 500 ml of 1.0M acetic acid from a
17.4 M stock solution.What volume of stock solution is required?
2 answers
asked by
omar
684 views
An aqueous solution contains 2.0 % NaCl by mass.
(1) Calculate the molality (NOT molarity!) of the solution. (2) Calculate the
4 answers
asked by
.
722 views
25.0 mL of a NaCl solution (concentration unknown) was found to react with 20 drops of the chloride test solution from the PU
5 answers
asked by
kt
704 views
Calculate the grams of solute needed to prepare each of the following. 55.0 ml of a 6.50 hcl solution.
2 answers
asked by
mary
670 views
How many grams of NaOH would you dissolve in pure water to make 400 mL of a 2.5% NaOH solution ? MW of NaOH = 40 g/mol
5 answers
asked by
Jay
692 views
How much of a 6.0M sucrose solution should you use to make 77.0mL of a 0.055M solution?
2 answers
asked by
joe
653 views
An aqueous solution of NaCl is 270m. If the density of the solution is 1.20g/ml. Find a) % NaCl by mass b) Molarity of NaCl in
2 answers
asked by
Arwida
687 views
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