Questions LLC
Login
or
Sign Up
Ask a New Question
Science
Chemistry
Calculate the molar conc. Of ethanoate acid needed to prepare ethonoic buffer of ph 6.8 using 0.5 molar solution of sodium ethanoic.pka of acid 0..127
1 answer
Use the Henderson-Hasselbalch equation.
You can
ask a new question
or
answer this question
.
Similar Questions
Calculate the molar concentration of ethanoic acid needed to prepare ethanoate buffer of PH 6.8 using 0.5m solution of sodium
Top answer:
Do you mean 0.5M. M means molar. m means molal. pH = pKa + log (base)/(acid) 6.8 = 0.127 + log
Read more.
Calculate the molar ration needed to prepare a CH3COOH buffer with a desired pH of 5. The pKa of the weak acid at 25C is 4.76
Top answer:
The Henderson-Hasselbalch equation is pH = pKa + log (base)/(acid) 5 = 4.76 + log (acetate)/(acetic
Read more.
Calculate the mass of potassium hydrogen phthalate needed to prepare a buffer solution containing 15.7ml of 0.2 molar
Top answer:
Paul, don't we need to know what you want as the pH of the buffered solution? Also it would be nice
Read more.
I have been told that to prepare 1L of 70% H2SO4 from concentrated sulphuric acid (96% with density 1.84g/ml), I should use the
Top answer:
Use the equation: V1C1 = V2C2 (V1)((0.96) = (1000mls)(0.70) Solve for V1
Read more.
calculate the mass of the species required to prepare a phosphoric acid buffer with a voncentration of 0.34M ,volume of 500ML
Top answer:
Look up the pKa values for H3PO4. K1 = 7.1E-3 which makes pK1 = about 2 K2 = 6,3E-8 which makes pK2
Read more.
How do I prepare 90% formic acid from conc. formic acid (98%-100% of density 1.22g/ml)?
Please help me check if my calculations
Top answer:
(0.99)(1.22g.soln/ml) = 1.2078 g pure acid / mL original soln. To get 100.0 g of pure acid: (100.0g)
Read more.
You are asked to prepare 500. mL of a 0.150 M acetate buffer at pH 5.00 using only pure acetic acid, 3.00 M NaOH, and water.
Top answer:
Well, well, well, it seems you're grappling with the complexities of buffer preparation. Don't
Read more.
30.00cm3 Hcl acid of conc. 6.4g/dm3 neutralised 25. 00cm3 of an unknown alkali (XOH),whose conc. was 4.85gdm3 calculate,
a. the
Top answer:
a. Alright, let's do some chemistry calculations, but I'll sprinkle in some humor for good measure.
Read more.
Calculate the volume of 2 M acetic acid needed to prepare 50 ml of 0.1 M acetate buffer.
Top answer:
Are you adding NaOH to acetic acid or are you adding sodium acetate to acetic acid.
Read more.
calculate the volumes of 0.10 M acetic acid and 0.20 M sodium acetate that are needed to prepare
48-mL buffer solution with pH =
Top answer:
To calculate the volumes of 0.10 M acetic acid and 0.20 M sodium acetate needed to prepare the
Read more.
Related Questions
(a) What is the pH of a 2.0 molar solution of acetic acid. Ka of acetic acid = 1.8 x 10¯5
(b) A buffer solution is prepared by
how can i calculate the volume of 3 M HCl needed to change the ph of 75 ml of undiluted buffer by one ph unit (buffer capacity).
"Use a 10% w/v nitric acid solution."
How to prepare 10% w/v nitric acid solution? Do I just weigh 10g of conc nitric acid (65%)
25cm3 Of 3g Of Hydrated Sodium Trioxocarbonate(iv) Solution (NaCO3XH2O)Per 250cm3 Was Neutralized By 13.20cm3 Of 0.16m
A buffer solution is prepared by adding 0.10 liter of 2.0 molar acetic acid solution to 0.1 liter
of a 1.0 molar sodium hydroxide
prepare a phosphate buffer with pH= 7 from solid NaH2PO4 (pKa =7.21) and Na2HPO4.
1) calculate the ratio of [CB]/[acid] I got the
Buffer capacity is a measure of a buffer solution\'s resistance to changes in pH as strong acid or base is added. Suppose that
Calculate the formal concentrations of acetic acid and sodium acetate necessary to prepare a buffer solution of pH 5 that is
You are asked to prepare 500. mL of a 0.250 M acetate buffer at pH 4.90 using only pure acetic acid (MW=60.05 g/mol, pKa=4.76),
1) A buffer solution was made by adding 6.56g of sodium ethanoate to 1dm3 of 0.02moldm-3 ethanoic acid.
a) What is the