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College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

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Section
BuyFindarrow_forward

College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

(a) If the average molecular mass of compounds in food is 50.0 g, how many molecules are mere in 1.00 kg at food? (b) How many ion pairs are created in 1.00 kg of food, if it is exposed to 1000 Sv and it takes 32.0 eV to create an ion pair? (c) Find the ratio of ion pairs to molecules. (d) If these ion pairs recombine into a distribution of 2000 new compounds, how many parts per billion is each?

(a)

To determine

The number of molecules present in 1.00kg of food.

Explanation

Given info:

The molecular mass of food

  m=50g

  M=1.00kg=1000g

  Na=6.023×1023molecules

Formula used: the number of molecules

  N=MmNa

Calculation:

Substituting the values

  N<

(b)

To determine

The number ion pairs are created

(c)

To determine

The ration of ion pair to molecule.

(d)

To determine

The number of parts per billion.

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