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sveta [45]
4 years ago
13

Is it possible for parents whose alleles for a dominant trait are homozygous dominant to have offspring with a homozygous recess

ive trait? True or False?
Chemistry
1 answer:
Fynjy0 [20]4 years ago
8 0
The right answer for the question that is being asked and shown above is that: "TRUE." It is <span>possible for parents whose alleles for a dominant trait are homozygous dominant to have offspring with a homozygous recessive trait. This is true.</span>
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A 25.0 ml sample of 0.723 m hclo4 is titrated with a 0.27 m koh solution. the h3o+ concentration after the addition of 80.0 ml o
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 the balanced equation for the acid base reaction is 
KOH + HClO₄ ---> KClO₄ + H₂O
stoichiometry of KOH to HClO₄ is 1:1
The number of HClO₄ moles - 0.723 M / 1000 mL/L x 25.0 mL = 0.0181 mol
Number of KOH moles - 0.27 M/ 1000 mL/L x 80.0 mL = 0.0216 mol
KOH is a strong acid and HClO₄ is a strong base therefore complete dissociation takes place.
acid reacts with base in 1:1 molar ratio, there's excess base remaining.
excess OH⁻ ions - 0.0216 - 0.0181 = 0.0035 mol
concentration is calculated as number of moles/volume
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pH = -log [H₃O⁺]
[H₃O⁺] = antilog(-12.52)
[H₃O⁺]  = 3.0 x 10⁻¹³ M
Answer is 3 x 10⁻¹³ M
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