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January 22, 2017

Search: Calculate the solubility (in grams per 100 mL of solution) of magnesium hydroxide in a solution buffered at pH = 12.

Number of results: 76,855

chemistry
How many mL of a 4.7 M HNO3(aq) solution are required to make 500 mL of a solution with pH=2.10
June 12, 2011 by amanda

Chemistry
How many mL of a 6 M HCl solution are required to prepare 200 mL of a 0.2 M solution?
June 20, 2011 by Brea

Chemistry
What volume of 0.867 M solution is required to make 3.50 L of a solution with pH of 12.5?
March 16, 2012 by stephanie

Chemistry
A solution contains 0.400 g of NaOH in 20.0 mL of solution. What is its molarity
April 24, 2012 by Urgent

chemistry
What is the molarity of a solution containing 18.0 g of KCl in 354 mL of solution?
July 12, 2012 by Amanda

chemistry
What volume of 2.50 x 10-4 M CV+ solution should be diluted to 10.0 mL to prepare a 7.50 x 10-5 M CV+ solution
September 3, 2012 by Jordan

Algebra 1A
I am so lost! Solve the equation and check the solution -6(t-2)-(t+3)=2 The solution to t is ??
September 23, 2012 by Austin

Chemistry
A solution has a %T value of 75.4% at 600 nm. What is the absorbance of this solution at this wavelength?
November 14, 2012 by Gabby

Chemistry
A solution has a %T value of 75.4% at 600 nm. What is the absorbance of this solution at this wavelength?
November 14, 2012 by Gabby

chemisty
How many mL of a 0.5M Ca(OH)2 solution are needed to neutralize 38mL of a 2M HNO3 solution?
November 24, 2012 by Boo Boo

Chem
If the pH of a solution at 25.00 degrees celsius is 2.37, the pOH of the solution at that temp is:
December 12, 2012 by Dawn

chemistry
what is the [OH-] in a solution that contains 0.225g of NaOH in 0.250 L of solution
January 25, 2013 by sofia

Chemistry
A solution contains 314 mg/L of Ca2 . What is the solution in nmol/m3?
February 15, 2013 by Tiffany

Chemistry
What volume(ml) of 8.0 M solution is required to make 134.3 ml of 1.2 M solution
April 8, 2013 by Linzy

Chemistry
what is the hydronium ion concentration in a 0.55 M HNO3 solution ? what is the pH of this solution? Thank You!!!
May 1, 2013 by David

Chemistry
what is the hydronium ion concentration in a 0.55 M HNO3 solution ? what is the pH of this solution? Thank You!!!
May 1, 2013 by David

chemistry
what volume of water is required to make 0.20 M solution from 16 ml of 0.5 M solution?
May 26, 2013 by prateek

chemistry
How much 9% solution can you make by diluting 350ml of a 15% solution?
July 14, 2014 by Ki

Math
4(2x + 3) = 2(3x - 4) one solution *my answer* infinite solutions no solution
September 30, 2014 by Anonymous

chemistry
What mass of solution contains 15.0g of sulfuric acid in a 20.0% solution
December 12, 2014 by Anonymous

Algebra 1
Find the solution of x^2+14x+112=0 I don't think that there is a solution
February 11, 2015 by Steve

Chem/bio question
HA is an acid that ionizes in 10% in solution. what is the [h+] of a 0.01 m solution of ha?
September 16, 2015 by Karina

science
how many ml of 6M HCl solution are required to bring the pH of 10 ml of a 4M NaOH solution to 2.0
January 21, 2016 by Razakou Maman

chemistry
how many ml of 6M HCl solution are required to bring the pH of 10 ml of a 4M NaOH solution to 2.0
January 21, 2016 by Razakou Maman

Chemistry
I have a .01 M solution of N2, and the concentration of H2 in the same solution is .02. What is the Ksp.
April 24, 2016 by Elizabeth

chemistry
0.01 mol of H2SO4 is present in its solution. Find the pH of the solution
July 5, 2016 by answer please

Science
Which is the molarity of a solution containing 20 g of CH3 OH in 300 mL of solution
November 10, 2016 by Victor

Chemistry 1
What is the minimum amount of a 6.0 M solution of sulfuric acid necessary to produce 25 grams of hydrogen gas if the molar ratio in the chemical reaction is a 1:1
October 21, 2010 by Jordan

Chemistry
How many grams of sodium carbonate must be added to 2.50 kg of water in order to lower the freezing point of the resulting solution to 258 Kelvin?
December 6, 2010 by sfs

chemistry
How many grams of Na2CO3 are required to completely react with 35.6mL of a 0.315M HCl solution? Na2O3(s) + 2HCl(aq) --> 2NaCl(aq( + CO2(g) + H2O(I)
July 2, 2011 by ashley

chemistry
How many grams of Na2CO3 are required to completely react with 35.6mL of a 0.315M HCl solution? Na2O3(s) + 2HCl(aq) --> 2NaCl(aq( + CO2(g) + H2O(I)
July 2, 2011 by ashley

Chemistry
How many grams of nickel (II) chloride must be added to 1.50 L of a 0.500 M sodium sulfide solution to precipitate out all of the product of interest?
February 21, 2012 by Bella

chemistry
How many grams of sucrose (C12H22O11) must be dissolved in 200 g water to make a solution in which the mole fraction of su- crose is 0.1? Answer in units of g
September 16, 2012 by cheri

chemistry
how many liters of hydrogen gas can be formed at 722 mmHg at 15 degress C when 5.5 grams of zinc metal with 150 mL of 1.25 molarity HCl solution?
November 10, 2012 by Missy

chemistry
if you want a solution that is .1m in ions what mass of na2so4 must you dissolve in125 grams of water assume total dissolution of ionic solid.
March 23, 2013 by rich

chemistry
If i have 12 grams of potassium chlorate dissolved in 100g of water at 65 celsius how much would i need to make the solution saturated
June 16, 2014 by adri

chemistry
What weight of lead nitrate in grams would need to be dissolved in 400 mL of water to prepare a 270 ppm solution of Pb2+?
October 12, 2014 by niks

Chemistry
Calculate the aqueous solubility (in milligrams per liter) of the following. The temperature is 20.°C in each case, the pressures are partial pressures of the gases. (a) air at 2.4 atm (b) He at 1.7 atm (c) He at 11 kPa There's also a table giving Henry's Constants for air ...
December 10, 2010 by Daiyo

CHEMISTRY
A 21g SAMPLE OF SULFURIC ACID IS DISSOLVED COMPLETELY IN SUFFICIENT WATER TO MAKE A .025 LITRE OF FINAL SOLUTION. CALCULATE THE HYDROGEN ION CONCENTRATION (IN mol1-1)IN THIS SOLUTION. GIVE YOUR ANSWER IN SCIENTIFIC NOTATION TO AN APPROPRIATE NUMBER OF SIG. FIGS. SHOW THE ...
March 8, 2007 by Desmond

Chemistry
hen excess Ag metal is added to 0.246 L of 1.290 M Fe3+(aq) at 298K, the following equilibrium is established: Ag+(aq) + Fe2+(aq) Ag(s) + Fe3+(aq) (1) If the equilibrium concentration of Ag+ is 0.504 M, what is the value of K? K = (2) Using the value of K from part (1), ...
November 27, 2016 by Shipaz

Science
How much heat is absorbed by a persons hand if 100 grams of steam at 100°C is first converted to liquid water at 100°C and then cooled to normal body temperature?
July 13, 2011 by Anonymous

chemistry
The amount of lactic acid, HC3H5O3, produced in a sample of muscle tissue was analyzed by reaction with hydroxide ion. Hydroxide ion was produced in the sample mixture by electrolysis. The cathode reaction is given below. 2 H2O(l) + 2 e ‾ → H2(g) + 2 OH ‾ (aq...
May 3, 2010 by Long

science
during the experiment, the students were asked to prepare a 10% (mass/mass) solution of sugar in water . ramesh dissolved 10g of sugar in 100g of water while sarika prepared it by dissolved 10g of sugar in water 100g of the solution a) Are the two solution of the same ...
September 6, 2011 by irsha

chemistry
Calculate the change in internal energy of the system in a process for which 100J of heat is absorbed by the system from surroundings and does 85J of work. (I want to learn the solution on how to calculate it... pls. help thank you... )
January 23, 2011 by jaycab

chemistry
25 ml of SHW containing CaCO3 1 g/L consumes 12 ml of EDTA. 25 ml of hard water consumes 8 ml of standard EDTA solution. After boiling the sample, 25 ml of the boiled hard water consumes 6 ml of standard EDTA solution. Calculate the total, permanent and temporary hardness
August 15, 2016 by priyanka

Please Help CHEM
Can you please tell me if these are right? Determine the pH for the following solutions A [OH-] = 1.0 X 10^-7 M I got 7 B. [H3O+ = 4.2 X 10 ^-3M I got 2.4 C. [H3O+]= 0.0001M I got 4 D. [OH-] = 8.5 X10^-9M I got 5.9 What are the [H3O+] and [OH-] for a solution with the ...
December 7, 2010 by Jessica

acid-base titrations
what is it important to keep the NaOH solution covered at all times? How will the molarity of the NaOH solution be affected by its continued exposure to the atmosphere? The pale pink color of the titration solution at the end point will fade to colorless after several minutes ...
April 21, 2008 by natash

Chemistry
a chemist wanted to make 100 grams of SO2. She had only 12 grams of sulfur and 4 grams of oxygen. Unfortunately, the amounts of reactants were not enough to make the desired product. How much S and O2 would she need in order to obtain the desired grams of product with no ...
November 3, 2011 by jermain

Chemistry
Cobalt and nickel can be simultaneously determined by formation of their coloured complexes with 8-quinolinol in solution. Molar extinction coefficients are: εCo = 3529, and εNi = 3228 cm-1 M-1 at 365 nm; and εCo = 428.9 and εNi = 0 cm-1 M-1 at 700 nm. ...
April 28, 2015 by FilthyF

Chemistry pH, acids, and bases
Trichloroacetic acid (CCl3CO2H) is a corrosive acid that is used to precipitate proteins. The pH of a 0.050 M solution of trichloroacetic acid is the same as the pH of a 0.040 M HClO4 solution. Calculate Ka for trichloroacetic acid. I just don't know where to start. How can ...
October 24, 2016 by Ryan

Chemistry
metal hydrides react with water to form hydrogen gas and the metal hydroxide. How do you calculate the mass of hydrogen gas that can be prepared from 3.78 g of SrH2 and 3.5 g of H2O? a) how many moles of H2 can be produced from given mass of SrH2? b) How many grams of H2? ...
October 26, 2009 by Brittany

chemistry repost
What is the boiling point of an aqueous solution that freezes at -6.7 degress C. Please help. I feel retarded because it seems like its something real easy but Im still not getting it. I did 100 + 6.7 and got 100.67 and are you sayin to divide 1.86 by .52 which is 3.576. the ...
November 5, 2011 by swtnblk

Chemistry
How to make 100 mL of 100mM of Tris HCl and 100 mL of 100mM of Tris Base. Follow the pH of the resulting combined solution as it is heated from 4 to 50 degrees Celsius. I did not use the HH equation in this problem. I started with just converting to moles needed and then to ...
January 15, 2017 by Aarya Singh

Solubility Rules
Using the solubility rules, predict the solubility of each of the following compounds in water: (S= Soluble, I= Insoluble) a)CaCO©ý _______ b) Al(OH)©ý ______ c) Hg©üCl©ü _______ d) Pb(NO©ý)©ü _______
March 17, 2013 by Annette W

math
The scientists Verhulst (1828) where is the natural growth rate of the population when resources are limited and is a positive constant called carrying capacity of the environment. (a) Using sign analysis, find all constant solution and discuss the general behavior of solution...
November 6, 2008 by josh

Chemistry
A solution of iodine (I2) in carbon tetra-chloride(CCl4) is used when iodine is needed for certain chemical tests. how much iodine must be added to prepare a 0.480 m solution of iodine in CCl4 if 100.0g of carbon tetra-chloride is used?
June 15, 2012 by punk480

Math
A 100 gallon tank is filled with a salt solution containing 10 lbs of salt. Pure water is pumped in at a rate of 5 gallons per minute and pumped out at the same rate. How many minutes will it take the amount of salt to drop to 8 lbs? Round to one decimal place.
December 5, 2016 by Molly

Pre-Algebra Calculus
NEED HELP PLEASE Mixture Problems 1.Joe created a metal containing 40% platinum by combining two other metals. One of these other metals weighed 12 lb. and contained 45% platinum. If the other weighed 3 lb. then what percent of it was platinum? 2. 12 gal. of a saline solution ...
January 23, 2016 by michele

chemistry
When 50.0mL of 1.20 M of HCl (aq)is combined with 50.0mL of 1.30 M of NaOH (aq) in a coffee-cup calorimeter, the temperature of the solution increases by 8.01 Degrees C. What is the change in enthalpy for this balanced reaction? HCl(aq) + NaOH(aq) --yields-- NaCl(aq) + H20(l) ...
November 14, 2012 by marcus

Physical Science
Calculate the number of grams of ice at 32 celsius that can be melted by 1g of 100 degrees celsius steam
March 10, 2013 by Asia

science chemistry
1000g of a 55%(mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution.how many liters of water should be added to the starting solution?
November 5, 2012 by Muhammad

science chemistry
1000g of a 55%(mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution.how many liters of water should be added to the starting solution?
November 5, 2012 by Muhammad

Chemistry
A sodium chloride solution has a density of 1.22 g/mL. How many moles of NaCl are dissolved in 10.0 mL of the solution? The density of water is 1.00 g/mL. My solution: ? mol NaCl = 10 mL*1.22 g/1mL*1mL/58.5g The correct answer is 3.76*10^2 mol. Please help!
March 22, 2015 by Anonymous

math
clearly define variables. set up the equations.How many gallons of a 30% alcohol solution must be mixed with 60 gallons of a 14% solution to obtain a solution that is 20% alcohol? x represents? y represents? equation 1? equation 2?
March 1, 2016 by jiya

(Math) PLZ CHECK ANSWERS
1. Which number is a solution of the inequality? 10.6<b A)-18 B)-9 C)7 D)14*** 2. Which number is a solution of the inequality? y+2>8 A)-5 B)-6 C)6 D)7*** 3. Which number is a solution of the inequality? 6>z(10-z) A)0 B)1 C)2 D)3*** 4. What are all the subsets of the ...
October 28, 2016 by Katrina

Chemistry
I posted this question on Thursday April 12 and received some help..but need more.. thanks Use the following information to identify element A and come pound B, then answer questions a and b. An empty glass container has a mass of 658.572 g. It has a mass of 659.452 g after it...
April 16, 2007 by Julia

DrBobb222 : Chemistry HElp...Please Check
Standardization of the Sodium Thiosulfate Solution Make up a standard solution of potassium iodate by accurately “weighing by difference” about 0.1 g of KIO3 and placing it in your 100 mL volumetric flask. Fill the flask to mark with distilled water. Potassium iodate ...
October 21, 2008 by Sara

Math help asap!!!
5(x – 9) = 5x no solution one solution infinite solutions –2(x – 1) = 2x – 2 infinite solutions one solution no solution
January 21, 2014 by Princess Anna

chemistry
What is the proper name for MgSO4/H2O? A. Manganese sulfate hexahydrate B. Magnesium sulfite dihydrate C. Magnesium sulfite heptahydrate D. Magnesium sulfate heptahydrate
August 23, 2014 by Yui

Chemistry
To titrate the acetic acid in 10.0 mL of vinegar sample, 25.5mL of 0.5M sodium hydroxide solution is needed. What is the concentration of acetic acid in the vinegar?
April 30, 2015 by Anonymous

chemistry
A student determined the chloride content of a commercial salt by using the Mohr method. A 0.5324 -g sample of the salt was dissolved in distilled water and diluted to a final volume of 250. mL. A 25.-mL aliquot of the analyte solution was then titrated against a standard 0....
April 4, 2011 by tara

Economics
Suppose the production function is Y = 100(K3/10)(EN)7/10 and capital lasts an average of fifteen years. The rate of population growth is 0.5%. The rate of technological progress is 2.5%. The saving rate is 5%. A. Derive the equation for output per effective worker y = Y/EN = ...
November 22, 2011 by Matty

Chemistry
At room temperature, 80.0 ml of 0.125 M AgNO3(aq) and 20.0 ml of 0.500 M Fe(NO3)2(aq) are mixed together, generating the following equilibrium system Ag+ (aq) + Fe2+(aq) Ag(s) + Fe3+(aq). At equilibrium, the concentration of Fe3+ is 0.00505 M. (a) (4 pts) Calculate the initial...
September 27, 2013 by Anonymous

chemistry
A solution is prepared by dissolving 17.1grams of sucrose, c12h22o11, in 275grams of h20. what is the molality of that solution? how would i do this???
April 5, 2008 by Miley

Math 116 algebra please check
Solve the following systems of equations x + 6y = (1) x+ 9 - 6y (2) What is the solution of the system? I get N for no solution
July 16, 2008 by jay jay

chem
Find the percent by mass of sodium chloride in a 1.15M NaCl solution. The density of the solution is 1.07g/mL.
October 1, 2008 by natash

Math
solve by the elimination method. what is the solution of the system? type a pair, an integer or a fraction, N if no solution, and I for many solutions. Q: x + 8y = 17 -x + 2y = 3 A: N?
November 2, 2008 by Carmen

math
solve by the substitution method 3x + 6y = 27 -2x + y = 12 what is the solution of the system..(type an ordered pair, or N if there is no solution) has to be like (3,5)please help me
November 8, 2008 by mikey123

Math
Please help! They are asking for 2 solution sets and I don't know where to start. Thanks in advance! Solve and write interval notation for the solution set. 3 – 8x < –5 or 3 – 8x > 19
July 7, 2009 by Katrina

Chemistry
A solution is prepared by dissolving 10.0 moles of Na2SO4 solid in 0.500 kg H2O. what is the vapor pressure of the solution at 30 C?
September 5, 2009 by Tammy

Chemistry
The pH of a solution is 11.30. In order to find the concentration of H+, wouldn't I simply take the pH of the solution and plug it into the formula 10^-pH?
September 16, 2009 by Anonymous

Algebra 2 URGENT
How much water must be evaporated from a 300 L tank of 2% salt solution to obtain a 5% solution?
October 19, 2009 by Trisan

Chemistry
What is the molarity of a solution that contains 0.30 moles of KBr in 400 mL of solution. Please show all work
April 30, 2010 by MEGAN!!!!

Chemistry
what would the freezing point be for a solution of 0.87M aqueous ammonia? The density of this solution is 0.992g/cm3
May 3, 2010 by Chem

math
if an iv dose of mannitol is 1.5g/kg,administrated as 15% solution.how many mls of the solution should be administered to 150 pound patient
June 25, 2010 by kim

chemistry
An aqueous solution containing 12.0% MgCl2 by mass has a density of 1.105g/ml. What is the mol fraction of water in this solution?
June 26, 2010 by jimbo

Chemistry
A solution is made by diluting 18.2 g glucose (C6H12O6) in 0.150 kg water. What is the mass percentage of solute in this solution?
August 3, 2010 by Jake

chemistry h/w help
The concentration of lead nitrate (Pb(NO3 )2 ) in a 0.726 M solution is __________ molal. The density of the solution is 1.202 g/mL.
September 15, 2010 by john

chemistry
a solution of sulfiric acid is 40% H2SO4 by mass and it has a density of 1.30g/ml at 25 degrees Celcious. the molarity of this solution is....?
October 3, 2010 by lizza

Chemistry
If you take a 10.0-{mL} portion of the stock solution and dilute it to a total volume of 0.700 L, what will be the concentration of the final solution?
October 7, 2010 by Veronica

chemistry
Hydrochloric acid (68.0 mL of 0.037 M) is added to 249.0 mL of 0.062 M Ba(OH)2 solution. What excess ions are left in the solution?
October 28, 2010 by Anonymous

chemistry
How much of a 0.23 M NaOH solution is needed to neutralize 27 mL of a 0.85 M sulfuric acid solution? The units are mL. Can you please explain why you did what did Thank you
October 29, 2010 by Jazmin

chemistry
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 do I go about doing this question thanks!
December 4, 2010 by Stacy

chemistry
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 do I go about doing this question thanks!
December 6, 2010 by wade

chemistry
If you were given an unknown solution, write the steps that would be needed to prove that a solution contained phosphate.
January 5, 2011 by AJ

chemistry
A solution of acid was found to have a pH of 1.60. What is the hydrogen ion concentration of the solution? (3 sig.fig) [H+(aq)] = ? mol dm–3
January 8, 2011 by James Holland

Chem
How many moles of NaOH would you need to add to 800 ml of a 0.4 M H2CO3 solution in order to bring the pH of the solution to 10.5?
February 6, 2011 by Roger

Chem
How many moles of NaOH would you need to add to 800 ml of a 0.4 M H2CO3 solution in order to bring the pH of the solution to 10.5?
February 6, 2011 by Roger

Chem
How many milliliters of concentrated hydrochloric acid solution (36.0% HCl by mass, density = 1.18 g/mL) are required to produce 20.0 L of a solution that has a pH of 2.13?
February 28, 2011 by Anonymous

chemistry
Determine how many milliliters of 0.102M NaOH solution is needed to neutralize 35.0mL of 0.125M H2 SO4 solution.
March 1, 2011 by jane

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