0
How do you get the pH of Butanoic Acid in a 0.250 M solution with pka of 4.83?
Wiki User
∙ 13y ago
By approximate calculation if you don't have a pH-electrode measuring device at hand.
At reasonable concentrations of acids, not too weak, there is an elegant short calculus formula saying pH is approximated by:
pH = 0.5*pKa - 0.5*log(Ca)[where Ca is the molar weak acid concentration]
So pH = 0.5*4.83 - 0.5*log(0.25) = 2.415 - 0.5*(-0.60) = 2.7 (Answer should always be rounded to 1st decimal).
Note: It is a reasonable approximation when pKa + log(Ca) > 1.4 and pHcalc< 6.5 (these premisses are both true: 2.4 - 0.3 > 1.4 and 2.7 << 6.5 )
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
How many centimeters are there in 483 millimetres?
There are 10 millimetres in one centimetre. Therefore, 483 millimetres is equal to 483/10 = 48.3 centimetres.
How many feet are there in 483 inches?
There are 12 inches in one foot. 483/12=40.25 40.25 feet = 40 feet and 3 inches
How far is equator to Bogota?
As the crow flies 483 Km or 300 Miles plus or minus 10 miles
Which planet is 483 million miles from the sun?
Jupiter 1 Orbit of Sun 4332.59 Days 1 Rotation 9 hour 55 min Mass 317 times more than Earth Volume 1318 times more than Earth Escape Velocity 214,203 km/h(133,100 mph) Distance From Sun 777 million kilometers(483 million miles) Average Temperature -153°C(-244° F) Atmosphere hydrogen, helium, methane Diameter 142,983 kilometers(88,846 Miles)
How many pints are in 453 grams?
A pint is a measure of volume, a gram is a measure of mass. There is no direct relationship (or conversion) between the two. 483 grams of different materials will occupy different volumes.
What is 483 percent as a fraction?
It is: 483/100
Are the songs on room 483 English?
Room 483 is the same as Scream, but has a different name, to tie it in with the Zimmer 483 album. So yes they are English. Zimmer 483 = German Room 483 = English
What fraction of 1kg is 483?
The answer depends on the units used for 483: ounces, grams, pounds ... ?
What is 483 percent of33?
483% of 33 is 159.39
What is the answer of 483 times 275?
483*275=132825
What is 483 plus 8236?
483 + 8236 = 8,719
Is 483 prime or composite?
483 is a Composite Number
What is the factorization tree for 483?
483 161,3 23,7,3
What is 6 divided by 483?
0.0124
What Is 483 divide by 2?
241.5
What is 483 g in kilograms?
483 grams is 0.483 kilograms.
What is the sum of 483 162?
The sum of 483 and 162 is 645.
