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zubka84 [21]
3 years ago
8

I NEED HELP PLEASE !!!!

Chemistry
2 answers:
iogann1982 [59]3 years ago
6 0

Answer:

the mean i believe sorry if im wrong

Explanation:

hope this helps ;)

inysia [295]3 years ago
3 0

Answer:

over 10 weeks the plant will grow 24 time longer than the the same hieght of the plant and the plant age will become 45 and so the plant is very much give hey man is my answer corecct

Explanation:

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6 0
2 years ago
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Tartaric acid, C4H6O6, has the first ionization constant with the value: Ka1 = 9.20 × 10-4. Calculate the value of pKb for the c
nirvana33 [79]

Answer:

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Explanation:

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H₂Tart  +  H₂O  ⇄  H₃O⁺   +  HTart⁻         Ka1

HTart⁻  +  H₂O  ⇄  H₃O⁺   +  Tart⁻²           Ka2

When we anaylse the base, we have

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HTart⁻  +  H₂O  ⇄  OH⁻  +    H₂Tart          Kb2

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so pKb = - log Kb2   → - log 1.08×10⁻¹¹ = 10.96  

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