# What happened if you put the Elodea leaf cells in a solution of 0.5% NaCl,1.8% NaCl and 0.9%NaCl?

36,754 questions, page 172-
## Chemistry

what is the PH of a solution of .1 M NAN3 that disassociates into HN3

*asked by Molly on March 4, 2015* -
## Math

which ordered pair is a solution of the inequality y≥4x - 5 A. (3,4) B. (2,1) C. (3,0) D. (1,1)

*asked by I need helppppp on April 19, 2018* -
## chemistry

0.0386mol glucose in 88.0ml of solution

*asked by cynthia on December 8, 2012* -
## Algebra

Which ordered triple is a solution of this system? 2x+y-z=7 -x-2y+4z=-15 x+2y=5z=17 (-2, 6, -5) (1, 3, 2) (2, 5, -2) (3, 1, 0)

*asked by Mary on October 4, 2013* -
## Math 116

9/10th (3+8x)+3greater or equal to 15 what is the solution to this?

*asked by Allison on September 22, 2011* -
## math

solve using multiplication -6x>1/13 The solution is < -1/78 is this correct?

*asked by jason on June 29, 2009* -
## Chemistry

What is the pH of a solution with a concentration of 4.7 × 10-4 molar H3O+?

*asked by Jamie on June 19, 2011* -
## math help asap

what is the solution to 2x+9greater or less then 5 and 2x-13greater or equal to -9.

*asked by Allison on September 22, 2011* -
## Anatomy and Physiology

If one solution is 1000 x as acidic as another, how many pH units would there be between the two?

*asked by Molly on July 26, 2012* -
## math

the ph of a solution is 3.6 what is it hydrogen ion concentration

*asked by i need help on December 9, 2012* -
## chemistry

How much ethanol is required to make a 2L of a 70%ww solution?

*asked by Larry on July 28, 2012* -
## College Chemistry

Determine the pH of a solution that contains 5.3*10^-2 M in HClO4 and 3.0*10^-2 M in HCl?

*asked by Mickey on February 26, 2011* -
## chemistry

If 16.0 mL of 8.5 ✕ 10-2 M HClO4 is added to 22.0 mL of 7.6 ✕ 10-4 M KOH, what is the pH of the solution?

*asked by Elizabeth on February 23, 2014* -
## Algebra

Is (1,-4) a solution to the equation y=-2x? I need help finding the answer.

*asked by learner on October 16, 2015* -
## Math 120

Graph the solution set to the inequality. 2x+3y>12

*asked by Kim on July 15, 2012* -
## math

x+5y - 6z = 2 kx +y -z = 3 5x -ky +3z =7 For what values of k does the system have a unique solution

*asked by Anonymous on August 13, 2012* -
## Math

What is the solution to the system of equations shown below? 2x-y+3z=8 x-6y-z=0 -6x+3y-9z=24

*asked by Rachelanne on August 27, 2012* -
## Chemistry

Calculate the concentration of all species in a 0.15 M KF solution. Ka = 6.4 x 10-4 for HF.

*asked by Brian on February 27, 2011* -
## math

what is the value of the cordinate of the solution to the system of equations x-2y=1 and x+4=7

*asked by Rolando on February 1, 2010* -
## CHEM

Calculate the pH of a .7 M solution of ammonium chloride

*asked by Heather on September 22, 2011* -
## CHEM

Calculate the pH of a .7 M solution of ammonium chloride

*asked by Heather on September 22, 2011* -
## Chemistry

How do you find the [OH-] of a 1x10^-3 M solution of NH4Cl?

*asked by Linda on February 20, 2014* -
## math

dy/dx+(1/x)y=3x^2y^3 find the solution using Bernoulli equation

*asked by tish on January 24, 2017* -
## Math

which ordered pair is a solution of the inequality y≥4x - 5 (3,4) (2,1) (3,0) (1,1)

*asked by I need helppppp on April 30, 2018* -
## chemistry

What would be the pH of 0.568 g of HClO4 per 250 mL of solution?

*asked by Vaneza ASAP on February 26, 2011* -
## algebra with trig

how do you solve an inequality and graph it's solution?

*asked by Anonymous on September 29, 2008* -
## Chemistry

A solution in which [H+] is 1000 times greater than [OH-] [OH-] = ?M

*asked by Matt D on February 26, 2012* -
## trigonometry

Determine the general solution of 8cos^2x-1=0

*asked by OwamIIi on October 3, 2013* -
## chemistry

Calculate the pH of a 0.0019 M HNO3 solution. 2.7

*asked by krystal on February 29, 2012* -
## chemistry

50 mL of 1.50* 10^-2 M HI(aq) is mixed with 75.00 mL of 1.10* 10^-2 M KOH(aq). What is the pH of the Final solution

*asked by reena on February 16, 2009* -
## differential Equations

Find general solution [t - sqrt(ty) ] dy/dt = y

*asked by George on February 14, 2018* -
## Math

Is ordered pair a solution to the equation? y = -5;(-3,1)

*asked by KGK on November 22, 2013* -
## algebra

Solve the inequality. Graph the solution. 2|x+1/3|

*asked by allexelle on April 10, 2015* -
## Math

What's the difference between one solution and infinitely many solutions?

*asked by Humanoid on January 29, 2015* -
## Math

solution to (4 x 10^3) x (6 x 10^6) written in scientific notation 24 x 10^9 2.4 x 10^9 THIS ONE 24 x 10^18 2.4 x 10 ^10

*asked by Someone on October 6, 2018* -
## algebra

-3x-4y =20 x-10y= 16 If x,y is the solution to the system of equations above what is the value of x? A. -14 B. -12 C. -4 D. 16

*asked by Anonymous on October 6, 2018* -
## Algebra

use substitution to determine if (5,1) is a solution to the inequality 2x+6y

*asked by Melesa Engram on December 2, 2016* -
## Math

What is the solution to (4 x 10^3) x (6 x 10^6) written in scientific notation? 24 x 10^9 2.4 x 10^9 24 x 10^18 2.4 x 10^10

*asked by Cody on November 12, 2016* -
## chemistry

what is the [H3O+] of a solution that is .01 M in HOCl and .03 M in NaOCl?

*asked by Audrey on November 13, 2010* -
## Algebra

Determine if (-4/5,3) is a solution to -5x+7y=25. Show work

*asked by Rand on April 25, 2012* -
## math

What is the molarity of a 15%w/v HCl solution (GMW=36.46)?

*asked by tiffany on June 17, 2013* -
## chemistry

Calculate the concentration of all species in a 0.20 M KF solution.

*asked by karen on March 7, 2017* -
## Science

0.02mole of the HCL and in 2leter of the pH solution

*asked by Anonymous on August 20, 2018* -
## math

Solve the equation and check your solution 2/5+1/y-5=y-7/5y-25.

*asked by glen on June 18, 2013* -
## science

What can particles in solution NOT do because ther are so small

*asked by Katherine on November 17, 2009* -
## Algebra

Solve for x using the addition principle. x+10=-8 The solution x=

*asked by Lisa on May 13, 2011* -
## trigonometry

Find the general solution for f(x) = 27 tan^2 x-9=0

*asked by lindsay on April 23, 2012* -
## chem

what is the pH of an aqueous solution that is 0.123M NH4Cl

*asked by help!!! on February 16, 2009* -
## calculus

if f(x)=Inx, find: f(2)+f(3) solution pls

*asked by gen on November 12, 2010* -
## Economics

Can anyone walk me through the solution of this problem? 1/2(1600/E)^1/2*50=? Thank You

*asked by Math on February 14, 2018* -
## Vectors

If ∣x∣=8, ∣y∣=13 and ∣x+y∣=15, determine ∣x-y∣. You may want to draw a diagram to help with your solution.

*asked by Jacob on October 3, 2018* -
## Differential Equations

Find general solution. 2ty dy/dt = 3y^2 - t^2

*asked by George on February 14, 2018* -
## Chemistry

What is the pH of a 2.5 x 10-2 M HCl solution? I'm so confused how to find this :(

*asked by Jess on April 24, 2012* -
## Science

Is toothpaste a mechanical mixture or a solution?

*asked by Dana on September 25, 2010* -
## algerbra

Identify the solution(s) of the system of equations, if any. 3x+2y=4 5x-4y=3

*asked by robert on September 1, 2014* -
## bio

How many grams of MgCl2 do you need to make 2 L of a 0.2 M solution?

*asked by K on February 8, 2016* -
## CHEMISTRY

What is the [H+] in a 0.10 M solution of ascorbic acid,C6H8O6?

*asked by James on April 25, 2012* -
## maths

using buttons of different colours ,find the solution of 5x-6=9

*asked by abhigyan on June 17, 2013* -
## Chemistry

Calculate the [h30+] in a 0.010M solution of Sr(OH)2

*asked by Saphire on April 25, 2012* -
## Math

Which of the following equations has an infinite number of solution? A. 3x - 3 = 4 -4x B. 2y + 4 - y = 16 C. 7x + 5 = 4x + 5 +3x D. 6y - 2 = 2 (y-1)

*asked by SandpitTurtle on January 17, 2014* -
## Chemistry

How many grams of drug X are in 10 mL of a 1:200 solution of X?

*asked by James on October 23, 2015* -
## chemistry

How many grams of NaOH are there in 2.5L of a 0.343M solution?

*asked by twynna on February 13, 2011* -
## chemistry

calculate pH of 0.1M CH3COOH of 100ml of that solution?

*asked by kabelo on February 13, 2011* -
## algerbra

Identify the solution(s) of the system of equations, if any. -3x-4y=2 8=6x-4

*asked by robert on September 1, 2014* -
## Math

If the quadratic equation x^2 + bx +c=0 has exactly one solution r, then find b/c.

*asked by Henry on October 2, 2012* -
## algerbra

Identify the solution(s) of the system of equations, if any. x=1 y=1

*asked by robert on September 1, 2014* -
## chemistry

calculate pH of 0.1M NH4^- of 100ml of that solution?

*asked by kabelo on February 13, 2011* -
## algerbra

Identify the solution(s) of the system of equations, if any. -3x-4y=2 8y=-6x-4

*asked by robert on September 1, 2014* -
## Math

Determine which ordered pair is a solution of y=x2 -2. (-2,6) (5,21) (-1,-1) (-5,24)

*asked by Lost on April 15, 2015* -
## Math

Find the solution or solutions of the equation: 3^x=3/2x+6 Thank You ;)

*asked by Sal on February 3, 2016* -
## math

Evaluate:24(12)-9/3. Find the answer and the solution.

*asked by Erica Anne C. Arellano on July 25, 2011* -
## Algebra

Graph the system below and write its solution. =3x+y−6 =y−1/2x-1

*asked by Anonymous on October 9, 2014* -
## math

Solve system of equations x+3y=7 (1) x=8-3y (2) no solution

*asked by deedra on January 7, 2009* -
## Chemistry

Calculate the concentration of OH-(aq) in a solution which [H+] = 100 x [OH-]. Thank you.

*asked by Simone on February 18, 2011* -
## help me plz math

which ordered pair is not in the solution set of y>2x+1? 1: (1,4) 2: (3,8) 3: (1,6) 4: (2,5)

*asked by Anonymous on January 11, 2009* -
## Math 20-1

What is the solution for 2x^2-7x>-3? (2 marks) (Show your work)

*asked by Alex on January 29, 2015* -
## math

which ordered pair is not in the solution set of y>2x+1? 1: (1,4) 2: (3,8) 3: (1,6) 4: (2,5)

*asked by Anonymous on January 11, 2009* -
## MATH

Decide if the given number is a solution to the given equation. 24/X = 2; 3

*asked by Matt 2000 on November 23, 2009* -
## algebra

im really stuck on this one What is the solution to the linear inequality y ¡Ý 4x - 5 ?

*asked by Meredith Grey on March 25, 2015* -
## chemistry

0.450mol of Na2S in 1.50L of solution

*asked by cara on October 3, 2012* -
## Franklin High

4x - y = 2, 9x - 2y = 8 find solution by substitution method

*asked by liz on June 12, 2013* -
## Math

Tell Whethter the givin number is a solution of -5 < n. 3. 8 4. -8 5. -4 6. 4

*asked by Dejon on January 10, 2009* -
## Math

a and b are integers such that the polynomial f(x)=x^4−4x^3−8x^2+ax+b has 1+2i as a solution to f(x)=0. What is the value of 10a+b?

*asked by Crow on June 10, 2013* -
## chem 121

what is the volume of a 0.750Mmgcl2 solution containing 45.0g of mgcl2

*asked by ngugi on July 2, 2010* -
## math

Identify the solution(s) of the system of equations, if any. -2x - 4y = 8 8y = -4x - 16

*asked by robert on September 1, 2014* -
## Chemistry

How many mL of HCl solution are required to change pH from 2.67 to 9.25?

*asked by Rhonda on March 24, 2015* -
## Algebra

4. Compare the quantity in Column A with the quantity in Column B. Column A The solution of 2(x-3) = 6x Column B The solution of 3x + 2 + 5x + 6

*asked by lizzie on August 7, 2011* -
## Vector & Geometry

if A= i+j, B= 2i-3j+k and C= 4j-3k find: Ax(BxC) pls help with solution.

*asked by Mathwise on November 4, 2009* -
## Math

Without solving, explain how you can tell whether the solution to 0.5x= 10 is less than or greater than 1.

*asked by Maya on February 5, 2018* -
## Algebra 1

Find the solution to the system y=x^2-2x-2 My answer is (-1,1)(7,33)

*asked by Steve on March 30, 2015* -
## Algebra 1

Hi, What point is a solution to the system of inequalities y >4x and y >-2x-3 (1/2,2)?

*asked by Batman on June 26, 2013* -
## math

please help simplify (3y/x^4)^-3 1/(1+square root of a) what would be the best solution: (1)/(x-2) +8= (x)/(x-2)

*asked by haley on April 7, 2012* -
## Math

What does the solution of a system of equation mean? Give one example

*asked by s on May 17, 2011* -
## math

Determine if(3/8-1 is a solution to 8x-7y=10. Please show all of your work

*asked by christine on August 15, 2011* -
## algebra

Which ordered pair is a solution of y = x – 4? a. (−1, −5) b. (0, −3) c. (2, 6) d. (3, 1) my answer C (2, 6)

*asked by J J on November 28, 2016* -
## Calculus

Find the particular solution of the differential equation y"(x) - y(x) = 1+e^x Please help.

*asked by Jane on October 16, 2009* -
## Chemistry

Calculate the ph of a solution that is 0.157m HCI?

*asked by James on May 4, 2016* -
## Algebra

solve by elimination: 6a+2b = -48 -6a+b = 57 What is the solution set ( , )?

*asked by Richard on October 11, 2012* -
## math

Use quadratic formula (3x/x-1)+(2/x)=4 the solution set is ( , )

*asked by Anonymous. on August 23, 2014* -
## math

Find the solution set for the equation. |3m + 4| + 6 = 12

*asked by Sally123 on September 6, 2018*

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