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Helen [10]
2 years ago
10

I need some help with with question:

Chemistry
1 answer:
defon2 years ago
8 0

Answer:

C1V1=C2V2

C1 is 2.0mol/l

V1=?

C2=.4mol/L

V2=100ml or for this 0.1L

V1 is 20ml

Best way to prepare this is to measure out 20ml of the 2 molar solution and add 80mL to it to get to 100mL

Explanation:

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6 0
2 years ago
(08.04 MC)
Veronika [31]

Answer:

Both have a pH greater than 7, but NH₃ has a lower pH than KOH.

Explanation:

  • Both of NH₃ and KOH are bases (can produce OH⁻), so both have a pH greater than 7.
  • NH₃ is considered as a weak base (not completely ionized), while KOH is a strong base (completely ionized).
  • If both NH₃ an KOH has the same concentration, KOH produces OH⁻ higher than that of NH₃.
  • So, NH₃ has a lower pH than KOH.

  • Thus the right choice is:

<em>Both have a pH greater than 7, but NH₃ has a lower pH than KOH.</em>

<em></em>

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