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March 30, 2017

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Number of results: 78,194

Chemisrty
How many milliliters of a 2.0M NaOH solution are needed to neutralize 20.0 ml of a 2.5M CH3COOH solution? How do I begin to figure this out?
October 9, 2011 by Shelly

chemistry
how many millimeters of a 2.0M NaOH solution are needed to neutralize 20.0ml of a 2.5M CH3COOH solution? How do I figure this out?
October 9, 2011 by Anonymous

chemistry
12 mL of 0.0100 M HCl are added to 25.0 mL of a buffer solution that is 0.010 M HC2H3O2 and 0.08 M C2H3O2-. What is the pH of the resulting solution?
October 21, 2011 by tim

7th grade Algebra
4w-9(6-5w)=44;w=3 decide whether the given value is a solution of the equation if not find the solution
October 26, 2011 by Maria

chemistry
How many milliliters of a 110mL solution of 1.5 M AlCl3 must be used to make 70mL of a solution that has a concentration of 0.2M Cl–?
November 3, 2011 by Dave

Chemistry
What is the mass percent of NaCl in a solution obtained by mixing 50g of this solution with 215g of H20?
November 26, 2011 by Kristi

chemistry
What is the pH of a solution in which 378 mL of HCL, measured at 27.5 degrees celcius and 1.02 atm, is dissolved in 1.5 mL of aqueous solution?
December 4, 2011 by Anonymous

Math; PLEASE HELP.
Tell whether the linear system has ONE SOLUTION, NO SOLUTION, or INFINITELY MANY SOLUTIONS. 4x-y=2 -x+3y=9
January 9, 2012 by Izzy

Chemistry
If 38.33 mL of a standard 0.1667 M Ba(OH)2 solution is required to neutralize exactly 52 mL of H2SO4, what is the molarity of the acid solution?
February 12, 2012 by Beatriz

Chemistry
A saturated solution at 25 C contains 10g of kclo3 in 50 ml of water. At what temperature does the solution become unsaturated?
February 13, 2012 by Mingma

Chemistry
a 0.250 mol sample of HX is dissolved in enough water to form 655mL of solution. If the pH of the solution is 3.44, what is the Ka of HX.
March 19, 2012 by ken

algebra
use elimination method to solve. A+6b=14 A+2b=2 does it have (a)one solution (b)Infin. many sol (c)no solution
March 30, 2012 by scott

chemistry
What is the pH of a solution prepared by dissolving 12.2 g of benzoic acid in enough water to produce a 500 mL solution?
May 13, 2012 by Andrea

chemistry
detail how to dilute a stock solution of nitric acid, 81 m HNO3, to prepare 675 ml of a 2.5 M solution
June 29, 2012 by Jenny

Chemistry pls help!!
A 32mL solution of 2.7M NaCL is mixed with 83mL of 1.8M HCL. What is the molaritt of the CL in the new solution. Thank you for your help
September 6, 2012 by Kate

Biology
If a solution A has 10,000 times as many H+ ions as solution B, what is the difference in pH units between the two solutions?
September 10, 2012 by Alex

science
If a solution A has 10,000 times as many H+ ions as solution B, what is the difference in pH units between the two solutions?
September 10, 2012 by Alex

chemistry
what is the molarity of a solution prepared by dissolving 63.0 g NaF in enough water to make 250.0 mL of solution?
October 16, 2012 by Gloria

chemistry
explain why a precipitate forms when silver nitrate solution is added to sodium chloride solution?
October 21, 2012 by vicky

pharmacy math
if 500 ml of a 15% solution is diluted to 1500 ml, how would you label the final strength of the solution?
December 7, 2012 by cleondra

Chem 111
Why would NaOH solution need to be added when preparing the K2CrO4 stock solution
January 31, 2013 by Bandar

Math: PLEASE HELP
3. Which of the following is a solution of x² + 14x + 112 = 0? If necessary, round to the nearest hundredth. A.) x = –0.24 B.) x = –4.24 C.) 4.24 *D.) no solution Thank you
February 28, 2013 by cassie

Algebra
Which of the following is a solution of x² + 14x + 112 = 0? If necessary, round to the nearest hundredth. A.x = –0.24 B.x = –4.24 C.4.24 D.no solution I think it is D...?
February 28, 2013 by Cassie

science
10 mL of 0.0100 M HCl are added to 25.0 mL of a buffer solution that is 0.010 M HC2H3O2 and 0.1 M C2H3O2-. What is the pH of the resulting solution?
March 15, 2013 by Erik

chemistry
1L of a .2M solution of Ethanoic acid is altered by adding 5.00g of sodium butanoate. what is the pH of the new solution
April 8, 2013 by Lana

achem
1L of a .2M solution of butanoic acid is altered by adding 5.00g of sodium butanoate. what is the pH of the new solution?
April 8, 2013 by Lana

Chemistry
What is the molarity of a sucrose solution that contains 76.7 g of C12H22O11 (342.34 g/mol) dissolved in 138.2 mL of solution
April 8, 2013 by Linzy

Analytical Chemistry
calthe culate mass of 10% stock solution required to prepare 0.8kg of 4%solution
July 21, 2013 by Shewa

chemistry
Mole fraction of NaOH is aquous sol 0.15 Find molarity of the solution, %w/w, if the density of solution is 1.25 g/ml
August 4, 2013 by shivani

chemistry
If you dilute 10.0mL of the stock solution to a final volume of 0.350L , what will be the concentration of the diluted solution?
September 30, 2013 by lissette

AP Chemistry- Acids
What is the pH of a solution obtained by adding 145mL of 0.575M HCl to 493mL of a HNO3 solution with a pH of 1.39?
February 12, 2014 by franny

algebra
Solve the inequality graph the solution set 26+6b>2(3b+4) answers are all real numbers, b<1 1/2, b>1 1/2,, no solution
February 22, 2014 by toby

algebra
Solve the inequality graph the solution set 26+6b>2(3b+4) answers are all real numbers, b<1 1/2, b>1 1/2,, no solution
February 22, 2014 by toby

chemistryyyy
a. What is the pH of a 6.1 ✕ 10-5 M Ca(OH)2 solution? b. What is the H3O+ concentration of the solution? I just cant figure out the ionic equation.
February 23, 2014 by Ana

algebra
Solve the inequality graph the solution set 26+6b>2(3b+4) answers are. All real numbers, b<11/2, b>11/2, no solution thanks
February 23, 2014 by Lucky

Algebra
Which of the following is a solution of x² + 14x + 112 = 0? If necessary, round to the nearest hundredth. (1 point) • x = –0.24 • x = –4.24 • 4.24 • no solution
March 18, 2014 by Sandra

chemistry
What volume of a 0.610 M NH4I solution is required to react with 525 mL of a 0.300 M Pb(NO3)2 solution?
June 23, 2014 by marie

chemistry
In what proportion should you combine a 2:5 soaking solution and distilled water to create a 300 ml of a 1:20 solution
July 21, 2014 by Kill

chemistry
In what proportion should you combine a 2:5 soaking solution and distilled water to create a 300 ml of a 1:20 solution?
July 21, 2014 by Kill

chemistry
In what proportion should you combine a 2:5 soaking solution and distilled water to create a 300 ml of a 1:20 solution?
July 21, 2014 by cham

chemistry
a student measures the conductivity of a KNO3 solution and determines it to be a strong electrolyte.what species are in solution?
November 12, 2014 by Anonymous

Chemistry
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 solution?
November 16, 2014 by Alex

Chemistry
Is the boiling point of 0.01 m potassium fluoride solution higher or lower than that of 0.01 m glucose solution? Explain
December 8, 2014 by Sean

chemistry
You have 14.0mL of a 0.12M NaOH solution. How many moles of HCl will it take to neutralize this solution?
March 1, 2015 by Savannah

Calculus
Find the general solution for the differential equation. Leave your solution in implicit form. dx/dt=(2-x)sqrt(1-x)
March 5, 2015 by Anonymous

chemistry
If a solution is made 0.080 M in Mg(NO3)2, 0.075 M in aqueous ammonia, and 3.5 M in NH4NO3, will Mg(OH)2 precipitate? What is the pH of this solution?
April 3, 2015 by Anonymous

Chemistry
What volume (in mL) of 0.55 M Na2SO4 solution is needed to precipitate all the barium, as BaSO4(s), from 15.5 mL of 0.25 M Ba(NO3)2 solution?
April 16, 2015 by john

chemistry
10 mL of 0.0100 M HCl are added to 25.0 mL of a buffer solution that is 0.010 M HC2H3O2 and 0.1 M C2H3O2-. What is the pH of the resulting solution?
June 5, 2015 by Renata

Hindu Vidyapeeth
Find the molarity of solution in which 69g nitric acid is present in 500ml of solution ?
July 21, 2015 by Aman Dhankhar

Chemistry
6.00 g of NaOH are dissolved in water to make 4.00 L of solution. What is the concentration of hydronium ions, [H3O+], in this solution?
July 25, 2015 by Serge

Engineering
For what values of (¢ belongs to R) the following system of equations has (1)no solution (2)a unique solution (3)infinitely many solutions? (5-¢)x+4y+2z=4 4x+(5-¢)y+2z=4 2x+2y+(2-¢)z=2
August 2, 2015 by Edward

Chemistry
What is the concentration of lead ions in a solution if they are completely precipitated from 36.3 mL of solution by 29.6 mL of 0.35M potassium iodide.
November 16, 2015 by Sam

Chemsitry
You are given a colored solution that is labeled 1M. You need to prepare a solution from this that is 0.5 M. Describe your procedure in detail.
November 17, 2015 by Rucha

chemistry
a 10.0 ml sample of a hcl solution is titrated with 32.6 ml of a 0.155 m naoh solution. what is the equation for the neutralization reaction?
November 22, 2015 by lakeisha

Chemistry
A concentrated H2SO4 solution is 10.5 M. You have to make 255 mL of 0.650 M solution. How would you prepare it?
November 27, 2015 by Neishia

Chemistry
An aqueous solution of a molecular compkind freezes at -0.086 degrees Celsius. What is the molality of the solution?
February 9, 2016 by Dalli

Chemistry
Please sir solve this... 6.3 gm of oxalic acid (eq. Wt.=63) is dissolved in 500 ml solution what will be the normality of the solution?
March 1, 2016 by Pradeep

chemistry
1.20 L of a solution that is 15.0 % of Pb(NO3)2 by mass (the density of the solution is 1.16 g/mL), starting with solid solute. how would you prepare this?
April 15, 2016 by Anonymous

Chemistry- Dr.Bob222
Determine [H30+], [OH-], and pH. A solution that is 0.655% HNO3 by mass (assume a density of 1.01 g/ mL for the solution).
April 20, 2016 by Nevaeh

Chemistry
Determine the pH of a solution made by diluting 25mL of 6.0 M HCl until the final volume of the solution is 1.75 L
April 21, 2016 by Dylan

chem
What volume of a 0.430 M NH4I solution is required to react with 289 mL of a 0.560 M Pb(NO3)2 solution?
May 20, 2016 by mee

Algebra
-2(y-3)=2y-6 A. One Solution B. No Solution C. Infinite Solutions ____________________________ Also Need help on these 2 prntscr/cpbo66
October 3, 2016 by Anonymous

Chemistry
If 0.0365 mol of CaCl2 is dissolved in water to make a 0.640 M solution, what is the volume of the solution?
October 5, 2016 by Tsomo

Chemistry
Prepare 0.03 mole fraction solution of NaOH in water Total volume of solution is 100ml
October 21, 2016 by Faisal

Applied chem
What is the molality of a 30.0% by mass hydrochloric acid solution ? The density of the solution is 1.0980g/mol.
October 30, 2016 by Trish

Chemistry
A sample of 76 g of NaCl is dissolved to make 1 L of solution. What is the morality of the solution? How do I get started solving this problem?
December 19, 2016 by Alice Keign

algebra
Graph the system of inequalities (shade each half-plane solution,not only the overall solution). y<= 3/2x+3 2x + y<10 y>-1
December 26, 2016 by Anneliese

chemistry
5. Compound A has a MW of 283. 0.423g of Compound A is dissolved in 13.5mL of water and 1mL of the solution added to 5mL of water to produce “solution A”. What is the concentration of Compound A in “solution A”?
December 8, 2011 by jenny

science
Compound A has a MW of 283. 0.423g of Compound A is dissolved in 13.5mL of water and 1mL of the solution added to 5mL of water to produce “solution A”. What is the concentration of Compound A in “solution A”?
December 9, 2011 by jake

math
Explain how to solve: A chemist has one solution containing 30% insecticide and another solution containing 50% insecticide. How much of each solution should the chemist mix to get 200 L of a 42% insecticide?
December 30, 2011 by Jane

Chemistry
how do I find the pH of a buffer solution given that 0.010M NH3 mixed with 0.0030M NH4Cl. Also... a 0.010M HF solution is mixed with 0.030M KF. FIND THE pH of this mixed solution.
March 25, 2012 by Declan

chem
If 5.35 g of KMnO4 are dissolved in a liter of solution, what is the normality of the solution?
January 5, 2010 by desperate

chemistry
If you have a 8M solution of H2SO4 how do you produce 105 ml of .25 M solution?
January 25, 2010 by Lilian

Algebra
Solve by the substitution method 9x+8y=-5 x=40-9y The solution is _______ or there is no solution
March 21, 2010 by Liz

chemistry
Determine the of a solution that is 1.75% by mass. Assume that the solution has density of 1.01
April 3, 2010 by Anonymous

chemistry
Determine the of a solution that is 1.75% by mass. Assume that the solution has density of 1.01
April 3, 2010 by Anonymous

chemistry
what is the molarity of a 50% by mass solution of NaOH id the density of the solution is 1.05 g/ml
April 19, 2010 by Rob

chemistry
what is the molarity of a solution with 150g of KNO3 dissolved in 1 L solution?
May 19, 2010 by chelsea

Algebra
Process of eliminiation method ? Is there a solution, infinity or no solution. I don't get it. Can anyone help me? 3r - 5s = -27 5r + 3s = 23
May 26, 2010 by Alfred

algebra
Process of eliminiation method ? Is there a solution, infinity or no solution. I don't get it. Can anyone help me? 3r - 5s = -27 5r + 3s = 23
May 26, 2010 by

Chemistry
What is the H3O+ in a solution that contains 1.48 g HNO3 in 0.560 L of solution?
June 7, 2010 by Angela

Math
5/8x + 1/6x = 11/16 + x the solution is x= enter solution as integer or simplified fraction.
July 9, 2010 by Lorri

Chemistry
How would you prepare a 250 mL solution of . 45 M from a stock solution of 5.5 M?
September 26, 2010 by Jrich

10th grade
scientist needs 5L of 12% solution. She has on 10% and 17% solution. How much of each does
October 1, 2010 by darren

algebra
Please help!!! Determine whether -10 is a solution of the equation 6(x-2)= -70 Is -10 a solution? Thanks for your help
November 8, 2010 by thawk

ap chemistry
what is the molarity of a solution in which 80g of CaCl2 is dissolve in 2.5 L of solution?
December 12, 2010 by cassie

chemistry
Describe how to make 20 mL of a 6.0 % solution from a stock solution with a concentration of 10 %.
February 22, 2011 by amber

chemistry
if you have 2 mol of glucose in 4L of solution, what is the molarity of the solution?
April 28, 2011 by lilly

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

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