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*