Mathewcastillo88
02.08.2019 •
Chemistry
Determine the ph of a buffer solution comprised of a 1.41 m hf and 0.623 m naf. the ka of hf = 7.20 x 10-4
Solved
Show answers
More tips
- S Society and Politics Skoptsy: Who They Are and How They Perform Castration?...
- H Health and Medicine How to Calculate Your Ideal Weight?...
- S Style and Beauty Discover the Art of Nail Design: How Do You Paint Your Nails?...
- P Philosophy How to Develop Extrasensory Abilities?...
- O Other Everything You Need to Know About Kudyabliks...
- C Computers and Internet The Twitter Phenomenon: What it is and How to Use it...
- C Computers and Internet How to Choose a Laptop: Expert Guide and Tips...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
Answers on questions: Chemistry
- C Chemistry Which phrase best describes the outer planets? rocky with few moons gaseous with slow rotations dense with few moons gaseous with low density...
- C Chemistry Can someone please help me with this I have until 9:50 show you work Lindy is going to New England to visit her brother for spring break and wants to know what the weather will...
- C Chemistry Calculate the heat change in joules for condensation of 7.10 g of steam at 100∘C? . Express your answer as a positive value using three significant figures and include the appropriate...
- C Chemistry Help i will give brainlaist...
- C Chemistry When testing for blood alcohol concentration, the _ test may not be conclusive...
- C Chemistry 3 com relação a formação dos solos, assinale a placas tectónicasalternativa corretab) solo é formado a partir de processos internos do planeta Terra, como o movie wasa) solo se...
- C Chemistry so basically there s this movie called The World According to month Montecito it s a CER thing and it says the claim is over the years Monticello has demonstrated numerous times...
- C Chemistry 9. Challenge yourself: Suppose you wanted to make 200 grams of water. A. What is the molar mass of water (H2O)? I B. How many moles of water are in 200 grams? C. How many moles...
- C Chemistry HELP WILL GIVE BRAINLIEST NO WEIRD ANSWERS...
- C Chemistry The following three solutions are mixed together. 58.0mL of 0.40M HCl 26.0mL of 0.65M HNO3 40.0mL of 1.2M LiOH Calculate the final pH of the solution....
Ответ:
PH = Pka + log[conjugate base]/[weak acid]
when we have here the conjugate base is NaF
and the weak acid is HF.
so, we are going to use the Ka value to get the value of Pka.
when Pka = -logKa
= -log7.2 X 10^-4
= 3.14
then we will substitution on H-H equation:
∴PH = 3.14 + log (0.623)/(1.41) = 2.99
Ответ:
D
Explanation: