Friday
December 9, 2016

# Posts by roshan

Total # Posts: 21

CHEMISTRY
HOW TO PREPARE 1 M GUAICOL FROM LIQUID GUAICOL SOLUTION MOLECULAR WEIGHT 124.14 DENSITY 1.11
November 27, 2016

Physics
The ratio of velocities of sound in hydrogen and oxygen at stp is???
June 19, 2015

chemistry
g)How many grams of agarose are needed to make 100 ml of 2.5% agarose solution?. h) Calculate the volume of buffer to which 500mL of 40 mM potassium chloride solution must be diluted to make a new concentration of 0.001M.
September 13, 2011

chemistry
How would you dilute a 2 mg/mL NaCl stock standard to make 100 ml of a 50 mg/dl standard?
September 13, 2011

chemistry
In performing an immunological procedure, you add 2 mL of serum to 8 mL of saline. Two 1:2 serial dilutions are then made. What is the dilution of serum contained in the final tube?
September 13, 2011

chemistry
require 400 mL of a 0.4 M NaOH solution and you have a 1.2 M stock solution. How would you make up the solution?
September 13, 2011

calculus
Lim Tan^2(3x)/2x^2 X-0 Find the Limit?
September 8, 2011

chemistry
Balance the following equation: K2CrO4+Na2SO3+HCl>>>>>>Na2SO4+CrCl3+H2O Enter the coefficients for eachcompound, separated by commas, in the order in which they appear inthe equation (e.g., 1,2,3,4,5,6,7
April 4, 2011

chemistry
would you expect lead chloride to dissolve in dilute HNO3? Explain
March 24, 2011

chemistry
100ml of 0.05M of NaOH is added to 0.5g of Ca(OH)2. find the [OH] (from Ca(OH)2)
March 23, 2011

chemistry
25ml of 0.05M of NaOH and the average volume of HCl is 17.7ml after titration and the concentration of HCl is 0.1028M. Find the [OH] eq (from titration). How do u solve this...
March 23, 2011

chemistry
the solubility of BaF2 is 6.29x10^-3M and the solubility of barium fluoride in 0.15M NaF is 4.4x10^-5M. Compare the solubility and explain?
March 22, 2011

chemistry
what is the molar solubility of barium fluoride in 0.15M NaF at 25 degrees C?
March 21, 2011

chemistry
calculate the molar solubility of barium fluoride in water at 25 degrees C. The solubility product constant for BaF2 at this temperature is 1.0x10^-6
March 21, 2011

chemistry
What concentration of the barium ion,Ba^2+ ,must be exceeded to precipitate BaF2 from a solution that is 1.00*10^-2M in the fluoride ion,F-? Ksp for barium fluoride is 2.45*10^-5.
March 16, 2011

chemistry
Aluminum Chloride has a universal indicator color of red and the Ph of 4.0 b) Sodium Carbonate has a universal indicator color of violet and the Ph of 9.5. c) Ammonium Acetate has a universal indicator color of green and the Ph of 7.5 ....For the following salts AlCl3, Na2CO3...
March 15, 2011

chemistry
Aluminum Chloride has a universal indicator color of red and the Ph of 4.0 b) Sodium Carbonate has a universal indicator color of violet and the Ph of 9.5. c) Ammonium Acetate has a universal indicator color of green and the Ph of 7.5 ....For the following salts AlCl3, Na2CO3...
March 15, 2011

chemistry
Aluminum Chloride has a universal indicator color of red and the Ph of 4.0 b) Sodium Carbonate has a universal indicator color of violet and the Ph of 9.5. c) Ammonium Acetate has a universal indicator color of green and the Ph of 7.5 For the following salts give an ...
March 15, 2011

chemistry
) Aluminum Chloride has a universal indicator color of red and the Ph of 4.0 b) Sodium Carbonate has a universal indicator color of violet and the Ph of 9.5. c) Ammonium Acetate has a universal indicator color of green and the Ph of 7.5 For the following salts give an ...
March 15, 2011