Units are all fine. No need of conversion.
Just Use the formula:
V = mass / density
V = 76.2 / 13.6 = 5.6 mL
Answer:
a) 3.969
b) 3.489
Explanation:
a) Calculate the pk, value of the acid HA
PH of salt hydrolysis
P
= 1/2 ( pkw + pka + logC )
8.7 * 2 = 14 + log ( 0.27 ) + Pka
∴ Pka = 3.9686 ≈ 3.969
b) Calculate the PH of a solution containing 0.3 M HA and 0.1 M NaA
PH = Pka + log ( salt / acid )
= 3.9686 + log ( 0.1 / 0.3 )
= 3.9686 - 0.48 = 3.489
Answer:
Light years are the only practical unit for measuring the distance of space
Explanation:
Practical... aka logical.
Because a unexpected color change has taken place also a precipitate was formed