Question

indicate whether the following are acidic, basic, or neutral solution
A. [H2O+]=6.0x10^-12
B. [H3O+]=1.4x10^-9
C. [OH-]=5.0x10^-12
D. {OH-]=3.5x10^-10

Answer 1

Check out their pH.
from these formula's
pH=-log [H+]
pOH=-log[OH-]
pH=14-pOH
of 1st and 2nd use the formula pH=-log[H+] to calculate pH.
for 3rd and 4th use pOH=-log[OH-] to calculate pOH, then from it calculate pH. i.e pH=14-pOH

pH > 7 = Basic
pH=7=Neutral
pH<7=Acidic

Answer 2

I feel like i am doing something wrong putting the formula in the calculator for A I keep getting .0004

Answer 3

-log(6.0x10^12)

Answer 4

A.
pH=-log(6.0X10^-12)=11.2 i.e Base
B.
pH=-log(1.4X10^-9)=8.8 i.e Base
C.
pOH=-log(5.0X10^-12)=11.3
pH=14-pOH = 14-11.3= 2.7 = Acidic
D.
pOH=-log(3.5X-10)=9.45
pH=14-pOH=14-9.45=4.55=Acidic

Answer 5

thank you

Answer 6

welcome