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1. ### How many mLs of 18.0 M H2SO4 must be added to 100mL H2O to give soln of 5.00M H2SO4?

... ADDITIVE, but assuming that they were, how many mLs of 18.0M H2SO4 must be ADDED to 100mL of H2O...

3 Answers · Science & Mathematics · 18/08/2013

2. ### in 380 mLs of 0.109 M NaClO4, how many atoms of oxygen?

... 0.109 moles of NaClO4 in 1 L. With 380 mLs you can find the number of moles of that molecule. (0.109 moles...

2 Answers · Science & Mathematics · 06/02/2013

3. ### How many mLs of cyclohexane are required to make 508 mL of a 5.37% (volume %) solution?

...or even volume/weight? If it's volume/volume then the answer would be 27.3 mLs. You divide 508 by a hundred then multiply by 5.37. After you get that...

1 Answers · Science & Mathematics · 20/01/2012

4. ### How many mLs are needed in this reaction?

17.0 ml. first you find your moles of SnCl2: .00618 then you do the 2 to 5 stoichiometric ratio of MnO4 to SnCl2: =.00247 moles Mno4 then you plug those moles into your molarity: .145M=.00247/?L =.017034L = 17...

1 Answers · Science & Mathematics · 17/03/2010

5. ### How many mLs are required to change the pH to 4?

[H+] of 0.1M HCl = 0.1M [H+] of solution with pH = 4.0 = 10^-4 = 0.0001M Use dilution equation: M1V1 = M2V2 0.0001*40 = 0.1 *V2 V2 = (0.0001*40)/ 0.1 V2 = 0.04 Add 0.04mL of 0.1M...

1 Answers · Science & Mathematics · 01/11/2011

6. ### What volume (in mLs) of 0.100 M sodium hydroxide solution must be added to 20.0 mL of 0.13 M sulfuric acid ..?

moles H2SO4 = 0.13 M x 0.0200 L=0.0026 H2SO4 + 2 NaOH = Na2SO4 + 2 H2O moles NaOH required = 0.0026 x 2 =0.0052 V = 0.0052/ 0.100 L=0.052 L => 52 .0 mL

2 Answers · Science & Mathematics · 25/05/2010

7. ### What volume (in mLs) of 0.100 M sodium hydroxide solution must be added to 20.0 mL of 0.13 M sulfuric acid ..?

moles H2SO4 = 0.0200 L x 0.13 M=0.0026 the balanced equation is H2SO4 + 2 NaOH = Na2SO4 + 2 H2O the ratio between H2SO4 and NaOH is 1 : 2 moles NaOH required = 2 x...

1 Answers · Science & Mathematics · 16/05/2010

8. ### 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

9. ### 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

10. ### 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

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