Saturday

July 26, 2014

July 26, 2014

Number of results: 17,026

**pre-calculus**

solve the following inequality 16(x^2-1) >16x the solution set is? or there is no solution.
*September 22, 2012 by ladybug*

**math **

is it true that you only have to check your solution in a rational equation if the solution is 0?
*September 27, 2012 by Matt*

**Chem help please**

A solution is found to contain 1 x 10-4 OH− ions, determine the pH of this solution.
*November 16, 2012 by Trevor*

**chemistry**

Calculate the molarity of a solution containing 58.5mg of NaCl in 2.50mL of solution.
*November 30, 2012 by Emmanuel*

**algebra**

Does the system of equations have no solution, one solution, or infinitely many solutions? y = x + 4 y – 4 = x
*December 21, 2012 by Laura*

**algebra**

Does the system of equations have no solution, one solution, or infinitely many solutions? y = 2x – 3 y = –x + 3
*December 21, 2012 by Laura*

**chemistry**

What is the molarity of an HCl solution if 38.5 mL of it is titrated to the equivalence point with 41.6 mL of a 1.41 M NaOH solution?
*January 13, 2013 by Megan*

**math**

tell wheter the system has one solution, infinitely many solutions, or no solution: y=3x-14 y-x=10
*January 14, 2013 by Taylor*

**math**

tell whether the system has one solution, infinitely many solutions, or no solution: y=3x-14 y-x=10
*January 14, 2013 by Taylor*

**math**

Identify the solution(s) of the system of equations, if any. -2x-4y=1 12y=-6x-3 a) no solution b) (0,-1) c) (-1,0) d) infinitely many solutions
*January 27, 2013 by monet*

**chemistry**

Calculate the molarity of a solution that contains 48g of NaCl in 250ml of solution.
*February 7, 2013 by James*

**chem**

A weak acid HA is 1.0% dissociated in a 1.0 M solution. What would its percent dissociation be in a 5.0 M solution?
*February 25, 2013 by ston*

**Chemistry**

Calculate the morality of a solution that contains a 4.0 mol of a solute dissolved in 12.0L of solution
*March 4, 2013 by Francesca*

**algebra**

I need to find the solution or no solution or infinite solutions to these two equations. x + 2y =4 9x - 4y = 3
*March 5, 2013 by DJDiamond*

**Chemistry**

.012 mol of solid NaOH is added to a 1 L solution of HCl 0.01 M. What is the pH of the solution?
*May 13, 2013 by scilover*

**Math 116**

identify the solution (s) of the system of equations, if any. -3x-4y=2 8y=-6x-4 a. infinitely many solutions b. (-16/9, 5/6) c.(-2/3,0) d. no solution
*June 21, 2013 by Queta*

**Solution Set**

The Y-coordinate of the solution of the system {x+y=3 {-3x+2y=-19 the answer is -2 how? I've done everything to try to solve!
*July 18, 2013 by Sara*

**Chemistry **

9. A solution has 48 grams of LiOH dissovled In 100 L of water. What is its [OH-]? 10. What is the pH of the solution in question 9?
*February 26, 2014 by Emma *

**AP Chemistry**

50.0 mL of an HCl solution with a pH of 3.5 neutralizes 200.0 mL of a Ca(OH)2 solution. What is the molarity of the Ca(OH)2 solu- tion?
*March 3, 2014 by Anonymous*

**chemistry**

8.22 g of CuNO3 is dissolved in water to make a 0.590M solution,what is the volume of the solution
*March 17, 2014 by Nicholas*

**Chemistry**

Calculate the volume of 2.00 M solution of KOH that is required to neutralize 30.0 mL of 1.00 M solution of HNO3.
*May 6, 2014 by Chemistry*

**Chemistry**

Calculate the volume of 2.00 M solution of KOH that is required to neutralize 30.0 mL of 1.00 M solution of HNO3.
*May 6, 2014 by Tina*

**Chemistry**

if you dissolve 25.5 g of KBr in enough water to make 1.75 L of solution, what is the molarity of the solution
*May 13, 2014 by Lori*

**Algebra**

What is the solution to the system of equations that contains –3x + y = 3 and 2x – y = –1? A. no solution B. (–1, 3) C. infinite number of solutions D. (–2, –3)
*June 16, 2014 by Emma*

**Chemistry**

What is the molarity of a solution that contains 0.50 mole of NaOH in 0.50 liter of solution? a-0.50 b-0.25 c-2.0 d-1.0
*March 5, 2008 by John*

**Chemistry**

What is the molarity of a solution that contains 0.50 mole of NaOH in 0.50 liter of solution? a-0.50 b-0.25 c-2.0 d-1.0
*March 5, 2008 by denny*

**algebra**

I need help with these please. What is the solution for 0.7x+5¡Ü1.1x-8? What would be the solution for, 15a+5b-12a-8b=
*June 2, 2008 by C*

**Chemistry**

How many millimeters of a 15.0%, by mass solution of KOH(aq)(d = 1.14 g/ml ) are required to produce 26.0 L of a solution with pH = 11.40?
*February 14, 2009 by Raj*

**chem**

How many milliliters of a 15.0%, by mass solution of {KOH}(aq) (d = 1.14 g/mL) are required to produce 25.0 L of a solution with pH = 11.60?
*February 16, 2009 by help!!!*

**college biology**

What solutions were hyptonis to egg? solution 15% 25% 30% 40% 50% sucrose solution
*March 21, 2009 by saleem*

**chemistry help**

What is the molarity of a solution that contains 125 g NaCl in 4.00 L solution? a.8. 56 M b.31.3 M c. 2.14 M d/ 0.535 M
*May 21, 2009 by chris*

**Algerbra1**

Does the equatin y=5x and 2x+3y=34 have one solution, no solution or infineitely many solutions?
*October 20, 2009 by Tyrone*

**chemistry**

Calculate the molality of a 2.50 molarity NaCl solution. Density of solution = 1.08 g/ml.
*March 4, 2010 by Anonymous*

**Chemistry!!!**

Is the molarity of a solution that contains 6 moles of solute in 2 liters of solution 12 M????
*May 1, 2010 by Tiffany*

**chemistry**

calculate the molarity of each of the following solution: 2.00 mol glucose in 4.00 L solution.
*June 25, 2010 by Ana*

**chemistry**

calculate the molarity of each of the following solution: 2.00 mol glucose in 4.00 L solution.
*June 25, 2010 by Ana*

**college chemistry**

How would you prepare a 250 mL solution of 0.45 M from a stock solution of 5.5 M?
*September 26, 2010 by Latroy33*

**chemistry**

calculate the molarity of a solution in which 22.6g C6H12O6 is dissolved in 1.08L of solution
*October 13, 2010 by Stacy*

**chemistry**

What is the molarity of an aqueous solution containing 31.7 g of glucose (C6H12O6) in 1.2 L of solution?
*November 3, 2010 by MaryBeth*

** chemistry**

How many moles of solute are contained in a 150ml solution of a 0.25 M NaNO3 solution?
*November 4, 2010 by Ed*

**Chemisty **

Kaochlor, a 10% (m/v) KCl solution, is an electrolyte solution. How many milliequivalents of K+ are in a 30 ml dose.
*November 17, 2010 by Susie *

**College Chemistry**

What is the molarity of 7.52 ml of HCL solution and 5.393 of HC2H3O2 solution?
*December 17, 2010 by Anonymous*

**Chemistry**

To what volume should you dilute 50.0 mL of a 4.50 M KI solution so that 28.5 mL of the diluted solution contains 2.75 g of KI?
*January 21, 2011 by Heidi*

**chemistry**

What volume of 25% solution is needed to make 500mL of a 10% diluted solution?
*February 15, 2011 by Gabby*

**Chemistry**

The Molarity of a solution that contains 50.0g BaF2 in 700.0ml solution is: A. 0.41 B. 0.29 C. 2.5
*March 5, 2011 by Eric*

**Chemistry**

What is the concentration of OH- in a solution that contains 0.225g of NaOH in 0.250L of solution?
*April 2, 2011 by allison*

**chemistry**

Calculate the molarity of a solution prepared by dissolving 25.0 g NaCl in 1.0 L solution.
*April 6, 2011 by Marilyn*

**Chemistry**

Explain how t make 1.5L of a 2.25M solution of H2SO4 from 6.0M stock solution.
*April 11, 2011 by Kayla*

**Chemistry**

how many grams of a solution are present if the solution contains 12.5g of KCL and is 43% by mass?
*April 13, 2011 by Ryan hawkins*

**Chemistry**

A solution has a volume of 2L and contains 36g of glucose, what is the molaritiy of the solution?
*April 19, 2011 by Bobbi*

**chem 100**

What is the [H3O^+] in a solution that contains 1.44 g HNO3 in 0.520 L of solution?
*May 10, 2011 by yesi*

**science**

when a reaction in solution produces energy, what happens to the temperature of the solution?
*June 9, 2011 by harold*

**science**

cslculate the molarity of a solution of 10.0g MgCl2 in a 300.0ml of solution
*June 21, 2011 by marcus*

**chemistry**

the molarity of a solution containing 40 grams of NaOH in 100 ml of solution is
*July 13, 2011 by willie*

**Math 116a**

solve by elimination 5r-6s=18 6r-5s=46 The solution is There are infinitely many solutions there is no solution
*September 26, 2011 by Katie*

**chemistry**

Calculate the morality of the solution 0.450 mol of Na2S in 1.75 L of solution
*November 7, 2011 by Betty*

**chemistry**

A solution contains 33.3 g H3PO4 in 448 mL of solution. Calculate its molarity.
*November 16, 2011 by Anonymous*

**chemestry**

what is the molarity of a solution made by dissolving 3.86 moles of NaCl in 2.50 L of solution?
*November 22, 2011 by Anonymous*

**chemistry**

What volume of a 7.00 M solution of Ca(OH)2 is needed to neutralize 37.2 mL of a 3 M solution of nitric acid? 1. 15.9 mL 2. 37.2 mL 3. 7.97 mL 4. 24.2 mL
*November 29, 2011 by katie*

**chemistry**

What is the molarity of an aqueous solution containing 43.7 g of glucose (C6H12O6) in 1.1 L of solution?
*February 9, 2012 by jessica*

**chemistry**

If you have 2 moles of glucose in 8 liters of solution, what is the molarfity of this solution?
*March 11, 2012 by idk *

**chemistry**

what is the molarity of a solution if 255g AgNO3 is dissolved in 1500 mL of solution
*April 3, 2012 by ron*

**chemistry**

What is the molarity of a solution if 255g NaNO3 is dissolved in 1500 mL of solution
*April 3, 2012 by paige*

**Chemistry**

A saturated aqueous solution of calcium hydroxide has a pH of 12.25. What is the [Ca 2+] of such a solution?
*April 14, 2012 by Andy*

**aglebra 2**

determine whether the equation has one solution, no solution, or is an identity. 5y+3=26
*September 6, 2012 by jess*

**Science**

A solution has a density of 3/mL. How many grams are needed to obtain 10.0mL of solution?
*September 24, 2012 by Sammi*

**chemistry**

Calculate the normality of a 15% H2SO4 (MW=98g/n) solution. The density of the solution is 1.21 g/mL
*November 22, 2012 by jhanica*

**AP Chemistry**

The pH of a solution of Sr(OH)2 is 12.42. What is its pOH? What is its [H3O^+]? What is its (OH^-)? What is its [Sr(OH02]? Is the solution acidic or basic?
*January 9, 2013 by Lizzy*

**chemistry**

To what volume should you dilute 50.5 of a 4.60 solution so that 30.0 of the diluted solution contains 3.30 of
*January 12, 2013 by Nicole*

**chemistry**

To what volume should you dilute 50.5 of a 4.60 solution so that 30.0 of the diluted solution contains 3.30 of KI?
*January 12, 2013 by Tata*

**clinical chemistry**

how many militers of a 2.0M solution is required to prepare 50ml 0f a 0.3M solution
*January 21, 2013 by Anonymous*

**chemistry**

Tell how to make a 1 M solution of Mg3(PO4)2 and a 0.1 M solution of CaSO4.
*January 25, 2013 by Shannon*

**math**

Identify the solution(s) of the system of equations, if any. -3x -4y = 2 8y = -6x – 4 a) infinitely many solutions b) (-16/9, 5/6) c) (-2/3, 0) d) no solution
*January 27, 2013 by monet*

**Chemistry**

A solution has a mass of 95.00g and a density of 2.147 g/mL. What is the volume of the solution?
*March 14, 2013 by Alice*

**Chemistry**

What is the molarity of an aqueous solution containing 27.3 g of glucose (C6H12O6) in 1.7 L of solution?
*April 4, 2013 by Shawn*

**Chemistry**

What is the normality of a solution which contains 4.03-g of sodium carbonate in 300.-mL of solution?
*May 22, 2013 by Megan*

**Chemistry- Please Help!!**

If a 0.10 M solution of an acid has a pH of 4.5, what would be the predicted pH of a .10 M solution of the conjugate, and why?
*July 31, 2013 by Kelly*

**Chem**

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 Answer 1.00 mL 3.00 mL 5.00 mL 7.50 mL 33.3 mL
*September 3, 2013 by Kristen*

**Chemistry**

At 25 °C, the density of a 40.0% (m/m) solution of sucrose, C12H22O11, in water is 1.18 g/mL. What is the molarity of this solution?
*February 16, 2014 by Michael*

**science**

What is then volume in mL of then solution 3.04g of sodium chloride from a 0.110 M solution?
*September 29, 2013 by samantha*

**chemistry**

How would you prepare 2.25L of a 3.00M solution from a 15.0M stock solution?
*October 18, 2013 by mona*

**math**

Identify the solution(s) of the system of equations, if any. -4x - 4y = 4 4y = -4x - 4 A) no solution B) (0, -1) C) (-1, 0) D) infinitely many solutions
*October 20, 2013 by sam*

**Math 6**

Identify the solution(s) of the system of equations, if any. -3x-4y=2 8y=-6x-4 A) infinitely many solutions B) (-16/9, 5/6) C) (-2/3, 0) D) no solution
*October 20, 2013 by sam*

**Chemistry **

A solution is 3.00M NaCl. The solution density is 1.05 g/mL. Calculate the molality?
*February 4, 2014 by Camilo*

**chemistry help~~~~ Please!!!**

how should the ph of a 0.1 m solution of nac2h3o2 compared with that of a 0.1 m solution of kc2h3o2?
*April 10, 2014 by Ali*

**Chemistry**

Calculate the molarity of an HCI solution, if 20.0 mL of it were neutralized by 10.0 mL of 2.00 M solution of NaOH.
*May 6, 2014 by Help me!!!!!!*

**Chemistry**

How many moles of KF are contained in 244 mL of 0.135 m KF solution? The density of the solution is 1.22 g/mL.
*May 31, 2014 by Veronica*

**Chemistry**

if 50 ml of a solution of ph 3 is mixed with 50 ml of a solution of 5, explain why the resulting ph is still about 3 and not 4?
*June 17, 2014 by Abdulhafiz*

**Chemistry 101**

A student needs to run an experiment to determine the amount of substance in the solution. As more of the substance is dissolved, the more red the solution becomes. He is planning on using an absorption spectrometer to measure how much of a wavelength would be absorbed when ...
*June 1, 2009 by Gweedo8*

**Honors Chemistry 101**

Do my answers look correct for these? Thanks Calculate the mass percent of a solution containing 45.6 grams ethanol (C2H6O) in 245 grams of water. 15.7% You are asked to make 500.0 mL of a 4.5M solution of HCl, but the only HCl you have available to dilute is 18.0M. Describe ...
*December 7, 2009 by Matt *

**Chemistry**

Calculate the pH of the following buffer solutions: a) a solution made by dissolving 2.733g KH2PO4 and 4.508g K2HPO4 in water to give 250 ml of solution. b)a solution made by mixing 35.00 ml 0.24 M C6H5NH2 with 15.00 ml 0.19 M C6H5NH3CL. The base dissociation constant Kb is 4....
*February 8, 2012 by Karie*

**Chemistry**

Glutamic acid is triprotic amino acid with pKa values of 2.23, 4.42, and 9.95. You are given a 0.100 M solution of it in its fully protonated form (H3A). How many moles of KOH must be added to 100 mL of this solution to make a solution with a pH of 5.00. I used 2.23 as the pka...
*March 2, 2013 by Angelyka*

**biology (Help please!!!)**

1. If a student pours a solution of salt water on an elodea leaf, what is it an example of? 2.A child pours salt crystals on the body of a slug he finds in the backyard. Options are: high concentration, low concentration, osmosis, diffusion, hypertonic solution, and hypotonic ...
*October 20, 2013 by Samantha*

**Chem II**

Find the a) % solution, b) molality and c) mole fraction of the acid 16.0 M H2SO4 d = 1.634 g/ml for the solution
*February 5, 2008 by Ken*

**Chemistry**

What is the molarity of a solution containing 20 grams of NaOH in 500 milliliters of solution? a-0.04M b-0.5M c-1M d-2M
*March 5, 2008 by John*

**Chemistry**

What is the molarity of a solution containing 20 grams of NaOH in 500 milliliters of solution? a-0.04M b-0.5M c-1M d-2M
*March 5, 2008 by Jena*

**chemistry**

if 24.25 mL of a standard M NaOH solution is required to neutralize 26.00 mL of H2SO4, what is the molarity of the acid solution?
*November 3, 2008 by james*

**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)
*November 7, 2008 by mikey123*

**Chemistry**

The density of a 22.0% by mass ethylene glycol (C2 H6 O2) solution in water is 1.03 .Find the molarity of the solution.
*February 11, 2009 by HELP PLEASEEE*

**AP Chem**

A 0.23 M sodium chlorobenzoate (NaC7H4ClO2) solution has a pH of 8.68. Calculate the pH of a 0.23 M chlorobenzoic acid (HC7H4ClO2) solution
*February 15, 2009 by Jake*

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