104 Answered Questions for the topic Solutions

08/14/16

#### Completely dry raisins do not absorb water from a solution because.......

Completely dry raisins do not absorb water from a solution because.......

Solutions Ordered Pair

07/28/16

#### find the ordered-pair solution of y=3x-9 corresponding to x=4

please help me I cant figure out this answer I have tried to summit my answer 5 times and its incorrect

#### 250g of water were added to 150g of 30% salt solution. What is the new concentration of the mixture?

250g of water were added to 150g of 30% salt solution. What is the new concentration of the mixture?
PLEASE HELP :D

02/17/16

#### Among all rectangles that have a perimeter of 144. find the demensions of the one whose area is largest

I don't know how to set this up and I am needing help. My professor did not tell me how to do this nor does my book

02/09/16

#### Stain remover solution word problem

katy runs a dry cleaning business and needs 6% phosphoric acid solution to remove a stain from a suit. Katy has on hand 14% phosphoric acid solution and a 2% phosphoric acid solution. How many...
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01/27/16

#### Calculate the vapor pressure of a solution? CHEMISTRY - Please check my answers??!!

Calculate the vapor pressure of water above a solution made by adding 15.0 g of lactose (C12H22O11) to 100.0 g of water at 338 K. (vapor pressure of pure water at 338 K is 187.5 torr) P (vapor...
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01/27/16

#### Calculate the vapor pressure of water above a solution. Please check my work??? General Chemistry

Calculate the vapor pressure of water above a solution made by adding 15.0 g of lactose (C12H22O11) to 100.0 g of water at 338 K. (vapor pressure of pure water at 338 K is 187.5 torr)
P (vapor...
more

01/27/16

#### Determine how many moles of particles are present in 1.0 L of the following solution? Please check my answer? Chemistry

0.02 M CuSO4
Can you check my work?
Since CuSO4 is a m + nm, it is an ionic compound and will break up into ions in a polar? solution.
(0.02 mol CuSO4 / 1.0 L soln)(2 ions/1 mol CuSO4) =...
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01/27/16

#### CHEM HELP PLEASE? Solution problem involving mass percent? What is the mass % of ammonium chloride in the solution?

At 20°C, a 3.54 M aqueous solution of ammonium chloride has a density of 1.0512 g/mL. The formula weight of NH4Cl is 53.50 g/mol.options:6.953.360.2974.1018.00I know mass % = mass of solute/mass of...
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#### Solve the equation...

Solve sin(2θ) = cos(θ) for 0 ≤ θ < 2π (Hint: there will be a total of 4 solutions!)

11/29/15

#### The antibiotic in dry form is contained in 10ml vial. The label written is 1g = 1ml; 2g = 5,000,000 units. There is 8g of antibiotic in the bottle. how many mg?

how many mg are there in one dose?

#### 2sin(pi/3x) =sqrt2

Find all solutions on the interval 0< (or equal to) theta < 2pi
Help! Show steps please.
thanks

11/22/15

#### cos^3(t) = -cos (t)

Find all solutions on the interval [0,2pi)
Please help and show steps!!
Thank you!

#### 2cos (3t) = -1

Help!!
Find all solutions.
Please show steps.
Thank you!

#### application problem

You have two solutions one contains 40% acid, the other 10% acid. You require 10 gallons of a 20% solution. How much of the 10% should you use? I have to write an equation and solve.

10/26/15

#### application problem

one solution contains 40% alcohol. A second contains 60%. You need 20 L of 45% solution. How many L of the 40% should be used. I have to write an equation and solve

#### Inequalities

On my math paper I had the following equation:
5/4(x+4) ≤ ½(x+8) -8
This is my work:
5/4(x+4) ≤ ½(x+8) -8
4(5/4(x+4) ≤ ½(x+8) -8)
5(x+4) ≤ 2(x+8) -32
5x+20 ≤ 2x+16-32
-2x ...
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#### Which of the following is the solution to the equation 25^2c = square root of 5^(4c + 16) ?

Which of the following is the solution to the equation 25^2c = square root of 5^(4c + 16) ?Select one:A. c = -5 over 2B. c = 7 over 2C. c = 4D. c = -7/2

#### Which of the following is the solution to the equation 25(z + 4) = 125 ?

Which of the following is the solution to the equation 25(z + 4) = 125 ?Select one:A. z = 5.5B. z = 3.5C. z = -2.5D. z = -0.5

Solutions

06/04/15

#### Can you please help me

A biologist has a 25% acetic solution and a 40% acetic solution. How many cubic centimeters of the 40% solution should be mixed to obtain 240 cc of a 30% solution?

05/13/15

#### math help????????

Write a system of three linear equations in three variables that has (2,1,5) as a solution. (There are many possibilities.) Explain the process you used to write an equation.

Solutions

04/21/15

#### what is the solution set for 0=x^2-4.75x+3

I am looking for a solution for this problem

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