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frutty [35]
3 years ago
10

A couple is planning to have a child. The father -to-be has six fingers, a dominant trait. His genotype is Ff. His wife has five

fingers. What are the odds that their child will have six fingers?
a. There is not enough information.
b. 1/2
c. 7/8
d. 1/4
Chemistry
1 answer:
Vinvika [58]3 years ago
5 0
A. There’s not enough info
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sure

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What would happen if the lid of a jar filled with helium gad was removed?
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I hope this helps!
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(6 points) Alice owns 20 grams of a radioactive isotope that has a half-life of ln(4) years. (a) Find an equation for the mass m
Cloud [144]

<u>Answer:</u> The equation to calculate the mass of remaining isotope is [A]=\frac{20}{10^{-0.217t}}

<u>Explanation:</u>

The equation used to calculate rate constant from given half life for first order kinetics:

t_{1/2}=\frac{0.693}{k}

where,

t_{1/2} = half life of the reaction = \ln 4=1.386yrs

Putting values in above equation, we get:

k=\frac{0.693}{1.386yrs}=0.5yrs^{-1}

Rate law expression for first order kinetics is given by the equation:

k=\frac{2.303}{t}\log\frac{[A_o]}{[A]}

where,

k = rate constant = 0.5yr^{-1}

t = time taken for decay process

[A_o] = initial amount of the sample = 20 grams

[A] = amount left after decay process =  ? grams

Putting values in above equation, we get:

0.5=\frac{2.303}{t}\log\frac{20}{[A]}

[A]=\frac{20}{10^{-0.217t}}

Hence, the equation to calculate the mass of remaining isotope is [A]=\frac{20}{10^{-0.217t}}

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3 years ago
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-Hope this helps.

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3 years ago
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