Calculate the solubility (in grams per 100 mL of solution) of magnesium hydroxide in a solution buffered at pH = 12.

81,268 results, page 62

Chemistry

If 7.83 g FeCl3(s) is dissolved in enough water to make 2.50 L of solution, what is the concentration of Fe3+ in the solution?

chemistry

1.)An aqueous solution is 34.0% H3PO4 by mass and has a density of 1.207 g/mL. What is the molarity of the solution? AND what is the molality?

Honors Chemistry

Will a base + H2O ALWAYS from a basic solution? (not a neutral or acidic solution)

chemistry

How many milliliters of .50 M NaOH solution are required to titrate 40.0 mL of a 0.10 M H2SO4 solution to an end joint?

chemistry

What is the osmotic pressure of a solution containing 25.7 g of sugar (C12H22O11) in one liter of solution at 20°C?

Chemistry

What is the concentration, in percent (v/v) of a solution containing 50mL of diethyl ether (C4 H10 O) in a 2.5L of solution?

Algebra 1a

Solve by the substitution method. 5x + 8y=0 x=2 2y Type ordered pair if there is a solution, or indicate no solution

chemistry

when 0.50 L of a 1.0 M solution of Pb (No3)2 is mixed with 0.50 L of a 1.0 M solution of KI, how many moles of lead (III) iodide are formed?

Chemistry

True or False? A solution made from NaCl and HCl will act as a buffer solution.

chemistry- thank you

How much of a 0.23 M NaOH solution is needed to neutralize 27 mL of a 0.85 M sulfuric acid solution? The units are mL

MAT117

SOLVE ^Y+6-1=4 A) The solution to Y=_ OR B)Solution is not a real number Can't figure this one out... This is what I came up w/ Y=^5

MAT117

SOLVE ^Y+6-1=4 A) The solution to Y=_ OR B)Solution is not a real number Can't figure this one out... This is what I came up w/ Y=^5

Chemistry

3.13g if CuNO3 is dissolved in water to make a 0.270 M solution. What is the volume of the solution?

chemistry

If 40 mL of a 6 {\rm M} \;{\rm NaOH} solution is diluted to a final volume of 200 mL, what is the resulting concentration of the solution?

chemistry

A solution of acetic acid, CH3COOH, has a concentration of 0.201 M and a density of 1.00 g mL-1. What is the molality of this solution?

mcckc.edu

A 0.10MNaCl solution is blank (iso/hypo/hypertonic) to a 0.10M glucose solution

College Chemistry

A solution of sulfuric acid is 40.0% by mass and it has a density of 1.30g/mL, what is the molarity of the solution?

chemistry

what volume of water must be added to dilute 5.0 L of .50 M HCl solution into a .10 M solution?

chemistry

what final volume in liters of a 2.5 m solution of sodium nitrate can be made using 25.0g of solution

chemistry

In order to dilute 1L of 6M solution of NaOH to .5M solution, how much water must be added?

chemistry

If you have 200.0 mL of a 30.0% aqueous solution of isopropyl alcohol, what volume of water is in the solution?

Chemistry

Can you show me the calculation? How many ml of a 2 M solution of HCL would be needed to neutralize 2 ml of a 5 M solution of KOH?

dav

determine the concentrated of mohrs salt solution with the help of supplied n/10 kmno4 solution preparred?

Chemistry

If 3.5 mL of distilled water is added to 1.5 mL of 0.280 M CoCl2 solution, what is the concentration of the resulting solution

chemistry 101

What is the pH of a solution in which 296 mL of HCl g, measured at 28.0 C and 1.02 atm, is dissolved in 1.5 L of aqueous solution?

Biochem

What is the pH and pOH a solution that was made by adding 400 mL of water to 350 mL of 5.0 x 10^-3 M NaOH solution?

science

You have 10 ml of a 1:10,000 solution of hydrogen peroxide (H2O2). What is the molar concentration of the solution?

Chem112

Compute pH of the saturated solution of La(OH)3 in ther 3x10^-5 M aqueous solution of La(NO3)3xKsp(La(OH)3).

ALGEBRA-Help please

Find the solution to the following system of two linear equations, if it has a solution. x+3y=4, 3x+9y=12

chemistry

The reasons why copper dissolves in AgNO3 solution but remain insoluble in Pb(No3)2 solution.help me.thank you

chemistry

A solution that holds the maximum amount of solute under the solution conditions is said to be

Math

Tell whether the linear system has ONE SOLUTION, NO SOLUTION, or INFINITELY MANY SOLUTIONS. 4x-y=2 -x+3y=9

chemistry

What is the volume of stock solution of 51 g/L AgNO3 required to make a 50 mL solution of 0.03 M final concentration?

chemistry

When 26 mL of a 120 mL stock solution containing 3.23 M CaF2 is diluted to 35 mL, how many moles of F- are in the new solution

chemistry

When 26 mL of a 120 mL stock solution containing 3.23 M CaF2 is diluted to 35 mL, how many moles of F- are in the new solution

chemistry

How many milliliters of a 155 mL solution of 1.7 M AlCl3 must be used to make 70 mL of a solution that has a concentration of 0.21 M Cl-?

chemistry

When Zn(OH)2 was added to 1.00 of a basic solution, 1.24×10−2 of the solid dissolved. What is the concentration of in the final solution?

chemistry

what is the mass of aluminum phosphate needed to create a .25M solution with 650 mL solution?

Chemistry

Codeine is added to 100ml of water until the solution concentration is 0.800M. What is the pH of this solution?

Science

If you have a 500 mL of a 0.4M Nacl solution. How much water is needed to make is 0.1M solution?

Chemistry

What is the concentration of a solution if I dissolve 42g of NaOH in a total volume of 375ml of solution

Chem Scc

5.82 g of CuNO3 is dissolved in water to make a 0.240 M solution. What is the volume of the solution?

Chemistry

What happens when red blood cells are placed in a solution that contains 0.99% (m/v) NaCl solution?

Differential Equation

Find the general solution of t^2y"-3ty'+4y=0 on (0, infinity sign, given that Y1=t^2 is a solution

Chemistry

I have a 40 ml solution of pH 4.36. I need to make this solution at pH 8.5 by adding extra 10 ml of HCl and NaOH. Thanks

ODE

if the DE x^2.y"+xy'-y=0 has a general solution c1x+c2.x^-1, use the variation of parameters to find the particular solution x^2.y"+xy'-y=2-2/x

Chemistry (science)

I don't know how to answer this. An aqueous solution of glucose has a freezing point of -0.37. What is the concentration of the solution?

chemistry

To what final volume should you dilute 60.0 of a 5.20M KI solution so that 40.0 of the diluted solution contains 3.15 of KI ?

Chemistry 3A

compute the molarity of a solution consisting of 2.0 moles of calcium chloride in 500mL of solution.

chemistry

What is the pH of a solution prepared by dissolving 1.533 g HCl in water to make 420 mL of solution

chemistry

A saturated solution of kno3 at 70°c is cooled to 10°c. What mass of a solid of precipitate out of solution.

math

tell whether the system has one solution, infine\itely many solutions, or no solution y=3x-14 y-x=10

Chemistry

1. I have 2% NaCl solution. From this I want to prepare a solution to contain 0.1 g of the sodium compound in 2 mL of water. Thanks

chemistry

What is the pH of the solution in which 241 mL of HCl gas measured at 28.0°C and 1.02 atm is dissolved in 1.5 L of aqueous solution

chemistry 2 college

explain how to find the mass of solute in the solution: 50.0g of solvent in a 10.0% NaCl solution?

chemistry

how can I find the Liters of solution. the solution is salt (NaCl) mixed in water (H20) ?

Math 116

Identify the solution(s) of the system of equations, if any. -6x-2y=12 4y=-12x-24 a. no solution b. (0,-2) c.(-2,0) d.infinitely many solutions

chemistry

If you dilute 27.0\({\rm mL}\) of the stock solution to a final volume of 0.460\({\rm L}\) , what will be the concentration of the diluted solution?

Calculus-HELP!!!

Find the complete general solution and a particular solution that satisfies the initial conditions: 2y'' + y' - 4y = 0 y(0)=0, y'(0)=1

Chemistry

What is the molarity of an aqueous solution that is 6.44% glucose (C6H12O6) by mass? (Assume a density of 1.03 g/mL for the solution.)

chemistry

What volume of a 0.500 M solution should be diluted to make 250 mL of a 0.400 M solution?

Math

A system of inequalities may have no solution, but is there a case where there might only be one solution?

Chemistry

A solution of acetic acid, CH3COOH, has a concentration of 0.218 M and a density of 1.00 g mL-1. What is the molality of this solution?

algerbra

Identify the solution(s) of the system of equations, if any. -4x - 4y = 4 12y = -12x - 12 no solution (0, -1) (-1, 0) infinitely many solutions

chemistry

How would you prepare 385 ml of a 0.856 m NaOH solution starting with a 4.93 m stock solution

chemistry

What is the volume of solution prepared when 6g of acetic acid is dissolved to prepare 0.25M solution

Chemistry

How much of a 5.2M sucrose solution should you use to make 81.0mL of a 0.040M solution?

chemistry

269 mL of a 0.2089 M sodium carbonate (Na2CO3) solution is prepared and labelled "Solution A".

chemistry

200 ml of h2o is added to 400ml (m/10) of hcl solution. Find the pH of final solution?

chemistry

How much of a 6.0M sucrose solution should you use to make 77.0mL of a 0.055M solution?

Chemistry

A solution contains 0.284 M sodium nitrite and 0.257 M nitrous acid. What is the pH of the solution?

chemistry

5.85gm of NaCl is dissolved in water and the solution is made up to 0.5 litre. what is the molarity of solution ????

science

How much water must be added to 200 g of a 10% NaOH solution to obtain 8% solution

Chem

In the aqueous solution of H2SO4 its mole fraction is 0.2 then closest value of molality of solution is (1) 13.9 (2) 9.8 (3) 10.2 (4) 11.2

Chemistry

50 L of your 0.05M sodium. chloride solution, what volume of 1.25M solution would be necessary?

science

6.025*10^20 molecules of acetic acid are present in 500 ml of its solution .What is the concentration of the solution?

Math

How much pure antifreeze must be added to 18 liters of a 20% solution to make a 40% solution ?

Chemistry

Determine the volume of a 0.1 M solution of HCl, necessary to titrate 20 mL of a 0.5 M solution of NH3. The value of Kb is 1.8 x 10-5.

Chemistry

In the aqueous solution of H2SO4 its mole fraction is 0.2 then closest value of molality or solution is a)13.9 b)9.8 c)10.2 d)11.2

Math

In what proportion should you combine 2:5 soaking solution and distilled water to create 1:20 solution?

Chemistry

If you dilute 19.0 mL of the stock solution to a final volume of 0.350 L , what will be the concentration of the diluted solution?

Chemistry

For a chemistry lab the experiment was to carry out an acid-base titration to determine the exact concentration of a sodium hydroxide solution. Two trials were completed and the data collected was: mass of weighing paper, mass of weighing paper + KHP, mass of KHP, initial ...

Chem

consider the equilibrium reaction: pbcro4(s) <--> pb^2+ (aq) +cro4^2- (aq). A saturated solution of lead chromate, pbcro4 has a lead ion concentration of 1.4 x 10^-7 m. what is the value of the solubility product ksp for lead chromate?

pH???+chem!

7. A few drops of bromothymol blue indicator are placed into 250 mL of 0.20 mol/L HCl(aq). A sample of 1.8 g of NaOH(s) is then dissolved into this solution. The final colour of the solution is predicted to be How can I do this one? What is the pH of the HCl solution? THen, ...

Chemistry

If a precipitation reaction occurs when a solution of one species is added to a solution of the other, enter the formula, including the state, of the soluble product. If there is no reaction, enter the formula and state of all ions in solution, separate by comma. CoCl2(aq) + ...

Chemistry

If a precipitation reaction occurs when a solution of one species is added to a solution of the other, enter the formula, including the state, of the soluble product. If there is no reaction, enter the formula and state of all ions in solution, separate by comma. CaBr2(aq) + ...

Chemistry

You have 1liter buffer solution containing 0.1 M HF and 0.05 M NaF. Now you add 0.055 moles of HCl to it. A) Do you think that the solution still retains it's effectiveness? B) Explain rationally how you came to the conclusion. I do not think that the solution would retain it'...

science

Calculate the buoyant force in air on a kilogram of gold (whose density is about 19 grams per cubic centimeter). The density of air is 1.3 ✕ 10-3 grams per cubic centimeter. Remember that the buoyant force is equal to the weight of a volume of air that is equal to the ...

Algebra

A coffee merchant has coffee beans that sell for $9 per pound and $12 per pound. The two types are to be mixed to create 100 lb of a mixture that will sell for $11.25 per pound. How much of each type of bean should be used in the mixture? My problem is that I can't figure out ...

chemistry

Indicate whether each solution is acidic, basic, or neutral. a. [H3O+] = 6.9 x 10-1 M This solution is acidic. b. [H3O+] = 8.2 x 10-13 M This solution is basic. c. [H3O+] = 3.2 x 10-1 M This solution is acidic.

chemistry

ndicate whether each solution is acidic, basic, or neutral. a. [H3O+] = 6.9 x 10-1 M This solution is acidic. b. [H3O+] = 8.2 x 10-13 M This solution is basic. c. [H3O+] = 3.2 x 10-1 M This solution is acidic.

chemistry

Solutions of sulfuric acid and lead acetate react to form solid lead sulfate and a solution of acetic acid.5.80 of sulfuric acid and 5.80 of lead acetate are mixed. Calculate the number of grams of acetic acid present in the mixture after the reaction is complete.

Chemistry

A solution is made by mixing 12.0 g of NaOH and 75.0 ml of 0.200 M HNO3 a) write a balanced equation for the reaction that occurs between the solutes. b) Caclulate the concentration of each ion remaining in solution. c) Is the resultant solution acidic or basic? O.k. I am ...

CHEMISTRY

A solution is made by mixing 12.0 g of NaOH and 75.0 ml of 0.200 M HNO3 a) write a balanced equation for the reaction that occurs between the solutes. b) Caclulate the concentration of each ion remaining in solution. c) Is the resultant solution acidic or basic? O.k. I am ...

IR chemistry - instrumental anaylsis

my last instrumental analysis lab was basically about becoming familiar with using an IR spectrometer. I used a salt solution with a sodium chloride salt plate although it was not stated in the procedure to do so. the IR spectra seems to have come out fine however I'm not sure...

chemistry 101

How many grams of oxygen are in 40.1 g of calcium hydroxide? options: 17.3 g 8.64 g 20.1 g 0.541 g 11.2 g

Chemistry

An acetic acid buffer solution is required to have a pH of 5.27. You have a solution that contains 0.01 mol of acetic acid. How many moles of sodium acetate will you need to add to the solution? The pKa of acetic acid is 4.74. Show all calculations in your answer.

Math Help PLEASE

Solve the system of equations by graphing then classify the system as consistent and the equation as dependent or independent. 4x-y=26 4x+5y=-10 What is the solution of the system of Equations? (type am ordered pair Type N if there is no solution Type R if the solution is all ...

Chemistry

If you have 200 ml of a 0.1M solution of acetic acid (pka=4.75), 1. How many ml of a solution of 1.O M NaOH would you need to adjust the pH to 5.2? 2. How many ml of water would you then add to make the solution of 0.05M in total acetic acid (ie., acetic acid + acetate ion)

Math

Professor Baird wants to mix a solution containing 10% acid with one containing 15% acid to obtain a 20 ounce solution containing 12% acid. How many ounces of the 10% solution should the professor use? Translate the word problem into an equation.

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