a density of 1.0 M solution of NaCL
29,680 results, page 65

chemisttry
how many ml of a 1 M NaOH solution do you need to add to a 250 ml flask and bring it to volume with deionized water to make a 0.12 M NaOH solution 
chemistry
What volume of solution would be needed to deliver the stated amount of solute? 39.0 grams of solute from a solution that is 16.0 % m/v? (anwser in milliliters 
MATH
A provider orders 90 ml of a 2.5% mannitol solution. How much of a 25% mannitol solution should be added to water to achieve the appropriate strength? 
Chemistry
75.0 mL of a 1.80 M solution is diluted to a volume of 258 mL. A 129mL portion of that solution is diluted using 187 mL of water. What is the final concentration? 
Chemistry
75.0 mL of a 1.80 M solution is diluted to a volume of 258 mL. A 129mL portion of that solution is diluted using 187 mL of water. What is the final concentration? 
chemistry
It takes 62 mL of 0.124 M KOH to neutralize 46.7 mL of H2SO4 solution. What is the concentration of the H2SO4 solution? Answer in units of moles/liter 
chemistry
It takes 62 mL of 0.124 M KOH to neutralize 46.7 mL of H2SO4 solution. What is the concentration of the H2SO4 solution? Answer in units of moles/liter 
Chemistry
67.0 mL of a 1.50 M solution is diluted to a volume of 258 mL. A 129mL portion of that solution is diluted using 163 mL of water. What is the final concentration? 
Chemistry 103
To what volume should you dilute 50ml of a 13M stock HNO3 solution to obtain a 0.131M HNO3 solution? 
Chemistry
How many milliliters of a 0.20 M of glucose (C6H12O6) solution are needed to provide a total of 25.0 g. of glucose? Molarity(M)= Moles of Solute/Liters of Solution 
chemistry
How would student make 500mL of .08500 M solution of iron using stock solution of .3180 M in iron(III)? 
chemistry
what is the concentration of the hydroxide ion in a solution if .12 mol of strontium hydroxide are dissolved in water and the final solution volume is 500. mL? 
chemistry
If you made up a solution of NaOH by adding 0.010 mole of solid NaOH to 1.0 liter of distilled water, what would be the pH of the solution? 
Chemisty
74.0 mL of a 1.80 M solution is diluted to a volume of 248 mL. A 124mL portion of that solution is diluted using 135 mL of water. What is the final concentration? 
GEN CHEM
A solution of CaCl2 is prepared by dissolving 1.004 g of the solid in approximately 30 mL of water. How many moles of CaCl2 does this solution contain? 
Chemistry
the hydronium ion concentration of a 0.050 M solution of a weak acid is 5.9 X 10^3 M. the aciddissociation constant is 1.37 X 10^4 at 25 celsius. what is the pH of this solution? A. 0.077 B. 1.30 C. 2.23 D. 3.86 E. 5.13 
Chemistry
Suppose that 10.9 mL of HNO3 is neutralized by 83.9 mL of a 0.0021 < solution of KOH in a titration. Calculate the concentration of the HNO3 solution. Answer in units of M 
Chemistry
Suppose that 10.9 mL of HNO3 is neutralized by 83.9 mL of a 0.0021 < solution of KOH in a titration. Calculate the concentration of the HNO3 solution. Answer in units of M 
Chemistry
An aqueous solution containing 10.50 g of a compound in 100.0 ml of solution has an osmotic pressure of 0.0187 atm. at 25°C. What is the molecular weight of the compound? 
chemistry
A 337\rm mL sample of unknown \rm HCl solution reacts completely with \rm Na_2CO_3 to form 17.1g \rm CO_2. What was the concentration of the \rm HCl solution? 
chemist
What is the concentration of the hydroxide ion in a solution if 0.12 mol of strontium hydroxide are dissolved in water and the final solution volume is 500. mL? 
science
A solution is prepared by mixing 100.0 mL of 0.0500 M AgNO3 with 75.0 mL of 0.0500 M CaCl2. What is the equilibrium concentration of Ag+ in solution? Ksp for AgCl is 1.6 x 10^10 
Chemistry
Hard ball candy is prepared from boiling an aqueous sugar solution that has a boiling point of 260.°F. What is the molality of this solution? 
math
The equation: T= 2* pi* sqrt(2/3L/9.8) Solve for L. Please show the solution step by step. The square root is giving me trouble in my solution. Thanks for your help. 
chemistry
osmotic pressure of a solution containing 7g of protein in 100ml of solution is 20mmhg at37celsius calculate molecular mass of the protein 
College Algebra
Please, I need your help!How much water must be evaporated from 16oz of a 2% salt solution to make a 4% salt solution? 
pre algebra
Check whether (4, 12) is a solution of the system of equations. y = 6x + 12 2x  y = 4 When the graphs of two equations are parallel, there are infinitely many solutions. y = x + 4 y = 3x solution: ( , ) 
Chemistry
A 495mL sample of unknown HCl solution reacts completely with Na2CO3 to form 18.1g CO2. What was the concentration of the HCl solution? 
science
if a solution is made by adding 83 grams.of soduim hydroxide to 750 ml.of water what is the percent by mass of sodium hydroxide in the solution? 
algebra
A lab assistant wants to make 5 liters of 27.2% acid solution. If solutions of 30% and 16% are in stock, how many liters of each must be mixed to prepare the solution? 
Chemistry
c) How many grams of each matter is in 2,0 litres of the following water solutions i) 8,6 til% ethanol solution ii) 22,6 til% glycol solution (1,2ethanediol) 
Chemistry
75.0 mL of a 1.40 M solution is diluted to a volume of 248 mL. A 124mL portion of that solution is diluted using 165 mL of water. What is the final concentration? 
Chemistry
What is the pH of the resulting solution when 25.0mL of 0.100 HNO3(aq)are reacted with 20.0 mL of 0.175M NaOH(aq)? Is the resulting solution acidic or basic in nature? 
AP Chemistry
A student titrates 25.0 mL of a 0.100 M solution of acetic acid with a 0.100 solution of sodium hydroxide. Calculate the pH at the equivalence point. 
Chemistry
If you take 3 mLs of a solution that is 4M acetic acid and add enough water to it to make 50 mLs, what is the molarity of the final solution? Thank you! 
Chemistry
Calculate the pH of the resulting solution if 50 cm3 of 0.045mol dm3 solution of C5H5N is mixed with 100 cm3 of 0.035 mol dm3 of C5H5NH+ 
Chemistry
Calculate the pH of the resulting solution if 50 cm3 of 0.045mol dm3 solution of C5H5N is mixed with 100 cm3 of 0.035 mol dm3 of C5H5NH+ 
Science
If one third of 100 g of 27% aqueous sugar solution is taken in a beaker and 10 g of sugar is added to it, the concentration of the resulting solution will be 
Biology/ Chemistry
You want to prepare 0.5 L (500mL) of a 0.250M Na2SO4 solution. How many grams of do you need to measure out for the solution? [MW of Na2SO4 = 142 g 
chem
Calculate the pH of the buffer that results from mixing 50.8 mL of a 0.493 M solution of HCHO2 and 13.0 mL of a 0.646 M solution of NaCHO2. The Ka value for HCHO2 is 1.8×10−4 
chemistry
what volume of .1 M solution of NaOH is required to precipitate all of the nickel 2+ ions from 250 mL of a .273 M solution of nickel (II) nitrate? 
Chemistry
using a 6.0M stock solution and a 2.5M stock solution, create two 0.01M solutions of hydrochloric acid with a 250mL volume 
AP Chem
Determine the amount of a precipitate produced when 10mL of a 0.1M silver nitrate solution is mixed with 10mL of a 0.1M calcium chloride solution. 
Algebra
Solve the system by substitution. State whether the system has one solution. Infinite solutions, or no solution. 2x+y=10 x3y=2 I believe that the answer is x=4 y=2 
Chemistry
If you have 1911.9 g of a bleach solution. The percent by mass of the solute sodium hypochlorite NaOCl is 3.62. How many grams of NaOCl are in the solution 
chemistry
You have 1683.8 g of a bleach solution. The percent by mass of the solute sodium hypochlorite, NaOCl, is 3.62%. How many grams of NaOCl are in the solution? 
chemistry
A sample of solid ammonia chloride NH4Cl, is dissolved in water...the solution found is acidic...explain why the solution is acidic? 
Math
A sample of seawater contains 0.000245 g of sodium chlorate per mL of solution How much sodium chloride is contained in 50.0 mL of this solution 
chemistry
For a 0.50 molal solution of sucrose in water, calculate the freezing point and the boiling point of the solution. Please list each step.? 
Chemistry
49.0 mL of HClO3 is completely titrated by 68.4 mL of a Sr(OH)2 solution whose concentration is 0.3893 M. What is the molarity of the HClO3 solution? Sr(OH)2 + 2HClO3 = 2H2O + Sr(ClO3)2 
Math check
Decide whether each equation has one, no solutions, or infanatly many solutions 1.) 2(x  3) = 2x One solution no solutions many solutions infinatly many solutions 2.) 3(y  3?) = 2y  9 + y One solution no solutions many solutions infinatly many solutions 3.)10x  2  6x = 3x... 
chemistry
A quantity of 12.75 mL of a KOH solution is needed to neutralize 0.5109 g of KHP. What is the concentration (in molarity) of the KOH solution? 
math
The IV dose of mannitol is 1.5g/kg, administered as a 15% solution. How many mls of the solution should be administered to a 150 pound patient? 
chemistry
Calculate the volume of a 9.00 M HNO3 stock solution that must be used to prepare 450 mL 0f a 1.80 M HNO3 solution. 
Math 116 algebra please check
Solve the following system of equations x + 6y =4(1) x = 96y (2) What is the solution of the system N There is no solution 
chemistry
Ammonia acts as a base in aqueous solution; Kb is equal to 1.8 x 105. What is the Ka for the ammonium ion NH4+ in aqueous solution? 
algebra
Solve each inequality. State the solution set using interval notation and graph the solution set. 1x<6 or 5+x<1 
math
is each ordered pair a solution of the given system? write yes or no. 1. y=6x+12 2xy=4 (4, 12) 2. Y= 3x x=4y+1/2 (1/2,3/2) 3.x+2y=2 2x+5y=2 (6,2) 4. Solve the system by graphing. Check your solution. x + y=3 x  y=1 
chemistry
A saturated solution of Mg(OH)2 is prepared having a large excess of Mg(OH)2. Sn(NO3)2 is added to the solution. Ksp = 1.9 1011 for Mg(OH)2 and Ksp = 6.0 1026 for Sn(OH)2. 
Math
The following equation has a positive and a negative solution. z1/z+1 = 2/z+4 I need to find the positive solution, any ideas please? 
chemistry
To what final volume should you dilute 50.5ml of a 4.75 M KI solution so that 27.5ml of the diluted solution contains 3.10g of KI 
science
If you have 0.50M Ca(NO3)2 solution, how many mL of this solution must be evaporated to obtain 32.8 grams of solid Ca(NO3)2? 
chemistry
A stock solution is prepared by adding 26 mL of 1.1 M K3PO4 to enough water to make 30 mL. How many moles of K+ are in 21 mL of the stock solution? 
Chemistry...Help!!
To what volume should you dilute 131 mL of an 8.20 M CuCl2 solution so that 49.0 mL of the diluted solution contains 4.53g CuCl2 ? 
chemistry
explain why you get two different pH values for same solution when calculating and using pH meter of same solution? 
chemistry
A sample containing .187 g cl is dissolved in 50.0 mL water. How many moles of cl ion are in the solution? what is the molarity of the cl ion in the solution? 
Anatomy and Physiology
calculate the percent KBr in a solution containing 0.88 grams KBr per 800 mL solution. 
chemistry
I is converted into I2 by the addition of an aqueous solution of KMnO4 to an aqueous solution of KI. What is the oxidation number assigned to I2?? 
chemistry
25cm3 of a solution of 0.1mol dm3 NaoH reacts with 50cm3 of a solution of hydrochloric acid.What is the molarity of the acid 
Chemistry
Exactly 23.6 ml of a 0.131 N HCl solution was required for complete neutralization of 25.0 ml of an NaOH solution.What was normality of the NaOH? 
Chemistry
A solution of HCL (.1053 M) is added to a solution of NaOH (50.0 mL) It takes 28.31 mL if the acid to neutralize the base (naOH). 
algebra
how many mls of pure water does a pharmacist have to add to 50mls of a 15% minoxide solution to get a 10% minoxide solution? 
Math
Solve two solutions. If there is a solution write it or I there isn't any write no solution. 3ly3l = 9 (l l is absolute value sign) 
chem
What volume of a 8.50M Na2CO3 solution would be required to prepare 220.00mL of a 8.20%w/v Na2CO3 solution? 
chemistry
i need to prepare 25.00 mL of a solution of a certain vitamin at a concentration of 2.00 mg/ml. how do i find the weight of the vitamin needed in the solution 
chemistry
what is the molarity of a HCl solution that contains 13.0 g of HCl in 125 mL of solution? Answer in units of M is it 3791.944 ? 
chemistry
A solution of NaOH with pH 13.68 requires 35.00 mL of 0.128 M HClO_4_ to reach the equivalence point. What is the volume of the NaOH solution? 
CHEMISTRY
How many grams of dry need to be added to 1.90 of a 0.800 solution of ammonia, , to prepare a buffer solution that has a of 9.00? Kb for ammonia is 1.8*10^5. 
Chemistry
what volume, in L, of a 10.0M HCL solution is needed to make 2.00L of 2.00m HCL solution by dilution with water. Thank you 
Chemistry
a solution is 0.0300 m in Sodium. How many grams of sodium carbonate are necessary to prepare 900.0 ml of this solution? I don't know where to start on this. 
Chemistry
A solution of NaOH was obtained by dissolving 5.6g of NaOH pellets in 100cm^3 of water. What is the concentration of resulting solution? 
chemistry
Suppose you have 0.500 M sucrose stock solution. How do you prepare 250 mL of 0.348 M sucrose solution ? 
Chemistry105
A 10.00 mL volume of sulfuric acid required 23.65 mL of NaOH solution for complete neutralization. What is the molarity of the acid solution? 
Linear Algebra
Consider the system x2y=k1 4x+(1k^2)y=8 For what values of k does the system have a. unique solution? b. infinitely many solutions? c. no solution? 
Algebra
X2y=1 2x+y=4 solve each system using elimination. Tell whether the system has one solution, many solutions, or no solution. 
Chemistry
Enough of a monoprotic acid is dissolved in water to produce a 1.47 M solution. The pH of the resulting solution is 2.64. Calculate the Ka for the acid. 
Chemistry
A 50mL solution of NaOH is neutralized by adding 37.5 mL of 0.045 M HCL. What was the original concentration of the NaOH solution? 
Chemistry
What is the % ( m/ v) concentration of the calcium chloride solution 1000.00 grams which was dissolved in water to make 1000.00 mL of the solution 
chemistry
Calculate the volume of solution needed to obtain 0.320 mol of KCl from a solution with a concentration of 0.64 mol dm3 
chemistry
calculate the concentration of a solution when 35.0g of k2so4 is dissolved in enough water to make to make 125.0g solution. 
Math! URGENT
Describe the number of solutions for the equation. 5(x9)=5x A. No solution B. One solution C. Infinite solutions Is the answer B? Thank You for any help. 
Math! URGENT
Describe the number of solutions for the equation. 2(x1)=2x2 A. Infinite solutions B. One solution C. No solution Is the answer B? 
chemistry
100 mL of a 0.1 mM buffer solution made from acetic acid and sodium acetate with pH 5.0 is diluted to 1 L. What is the pH of the diluted solution? 
Science
what is the concentration (M) of a MgCl2 solution prepared by dissolving 7.2 g of MgCl2 in sufficient water to give 362 mL of solution? 
chemistry
By titration, 26.7 mL of aqueous H2SO4 neutralized 26.2 mL of 0.028 M LiOH solution. What was the molarity of the aqueous acid solution? 
chemistry
25.0 ml of 15% NH4NO3 solution is diluted to 300.0 ml. What is the concentration of the diluted solution? .15% x 25=3.75ml Do I divide by 300ml and that's my answer? 
chemistry
A mixture is made using A 50.0 mL sample of a 0.20 M aqueous solution of NAOH was added to 50.0 mL of a 0.20 M aqueous solution of HCl.What is its pH at 25.0 °C? 
chemistry
If 2.29 mL of a stock solution of acetic acid with a concentration of 0.723 M is mixed with 15.75 mL of water, what is the concentration of the diluted solution? 
linear systems
for what values of k does the linear system below have: a) infinite solutions? b) one solution? c) no solution? 2/3x+y=16 kx+3y=48 
Chemistry
A is a solution of hcl containing 7.30gdm^3 and B is a solution of X2CO3 containing 10.6gdm^3.calculate the concentration of A in Moldm^3