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Alenkinab [10]
3 years ago
15

What kingdom would be the best option when classifying the organism

Chemistry
1 answer:
klasskru [66]3 years ago
7 0

Organisms can be classified into seven levels. You've read about species and genus, the most specific levels of the classification system most scientists use today.

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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:

pKb = 10.96

Explanation:

Tartaric acid is a dyprotic acid. It reacts to water like this:

H₂Tart  +  H₂O  ⇄  H₃O⁺   +  HTart⁻         Ka1

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

When we anaylse the base, we have

Tart⁻²   +  H₂O  ⇄  OH⁻  +  HTart⁻       Kb1

HTart⁻  +  H₂O  ⇄  OH⁻  +    H₂Tart          Kb2

Remember that Ka1 . Kb2  = Kw, plus pKa1 + pKb2 = 14

Kb2 = Kw / Ka1  →   1×10⁻¹⁴ / 9.20×10⁻⁴  = 1.08×10⁻¹¹

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

7 0
3 years ago
Read 2 more answers
To prevent tank rupture during deep-space travel, an engineering team is studying the effect of temperature on gases confined to
uranmaximum [27]

Answer: 63.88 atm

Explanation:

To answer this, we use the formula PV = nRT since the asumption is that the gas has an ideal behavior

where number of mole = 2.60 mol, R(gas constant) = 0.08205746 L atm/K mol,

T = 251 ∘C = (251 + 273) K = 524 K, Volume = 1.75 L

Making Pressure the subject of the formula, we have

P = nRT/V = 2.6 * 0.08205746 * 524/2.75 = 63.88 atm

6 0
3 years ago
Is tin a transition metal? How do you know?
musickatia [10]

Answer:

No it is not because it is not in group 3 or 12.

Explanation:

6 0
3 years ago
What are bonds? <br> stocks <br> dividends <br> certificates of deposit <br> loans
tatuchka [14]

loans would be the answer



6 0
4 years ago
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Complete the chemical equation related to the formation of sodium chloride​
son4ous [18]

Answer:

sodium + chlorine --> sodium chloride

3 0
3 years ago
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