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1. ### How many mLs of Methanol, Acetone, IPA, ethyl acetate would I need?

ppm is equal to 0.001g/1,000mL so you will need 0.0001g of each for 100mL of ethanol. 1 mL=10^3 µL 0.0001g/density= volume of each to add Methanol=0.0001g/0.791g/mL=1.26 x 10^-4mL=1 x 10^-4 mL=0.1 µL Acetone=0.0001g/0...

1 Answers · Science & Mathematics · 15/12/2013

2. ### How would I estimate how many mLs of a 0.5 M NaOH solution will be required to titrate 1.2 g of potassium hydr?

1.2g/204.22 (MW of KHP) = .00588 moles KHP = .00588 moles NaOH at endpoint M=mol/L 0.5 M = 0.00588 moles NaOH/x L = .01175 L = 11.75 mL

1 Answers · Science & Mathematics · 18/11/2009

3. ### how many mLs of EDTA are needed to titrate the Ca2+ in the aliquot?

a. n = m/M = 0.4935/(40.08+12.011+3*15.9994) n = 4.9306E-3 moles were weighed out b. v = 250 mL = 0.25 L c = n/v = 4.9306E-3 mol / 0.25 L = 1.9722E-2 mol/L is molarity c. 25 mL = 0.1*250 mL so aliquot...

1 Answers · Science & Mathematics · 26/10/2008

4. ### How many teaspoons are in 11 MLs?

a level teaspoon is generally around 5ml. .

1 Answers · Science & Mathematics · 13/11/2013

5. ### mLs of concentrated acid needed to prepare 2.70 pH nitric acid solution?

1420 g/L x 69.5 / 100 =986.9 g/L of HNO3 986.9 g/L / 63.012 g/mol =15.7 M is the concentration of the acid = concentration H+ we need pH = 2.70 => [H+] = 10^-2.70 = 0.00200 M M1V1 = M2V2 15.7 V1 = 0.00200 x 5.50 L...

1 Answers · Science & Mathematics · 16/03/2008

6. ### mLs of concentrated acid needed to prepare 2.70 pH nitric acid solution?

The pH of the required acid is 2.70, that is, [H+] = 10^-pH = 10^-2.70 = 1.99 x 10^-3 M ≈ 2x10^-3 M Since HNO3 is a strong acid, it ionizes completely; HNO3(aq) ------> H^+(aq) + NO3...

1 Answers · Science & Mathematics · 15/03/2008

7. ### How many grams of NaOH is needed to make 500.0 mLs of a 0.450 molar solution?

NaOH is 39.99 g/mol In order to make 500mL of a 0.450M solution, you need 0.225mol NaOH 0.225*39.99 =8.99775 grams NaOH

4 Answers · Science & Mathematics · 25/04/2011

8. ### You need 100 mLs of a 1.0 M HCL solution. You have a stock solution of 6.0 M HCL.?

since the mmoles never change ( mass ) only the concentration will so M1V1= M2V2 M1= 6 M Vol 1 = ? vol 2 =100 M2 = 1 M so Vol1 = (100 x 1 )/6M = 16.667 mL take 16.667 mL of the 6 M dilute to exactly 100...

1 Answers · Science & Mathematics · 29/11/2010

9. ### Estimate how many mLs of NaOH it will take to reach the bromothymol bluen endpoint for 10 ml of 1.2HCl.?

It is a 1:1 reaction. So 1 mL of HCl will react with 1.2/0.516 mL of NaOH. Since we are estimating this is somewhat less than 2.4 mL, so it will take somewhat less than 24 mL of the NaOH to react with 10...

1 Answers · Science & Mathematics · 02/11/2012

10. ### How many mLs of cyclohexane are required to make 677 mL of a 2.96% (v/v) solution?

2.96 : 100 = x : 677 x = 20.0 mL

1 Answers · Science & Mathematics · 11/12/2007