Answer:
3.125% will remain after 125 days
Explanation:
Given data:
Half life of Th-234 = 25 days
Percent of thorium remain after 125 days = ?
Solution:
Number of half lives = T elapsed / half life
Number of half lives = 125 days / 25 days
Number of half lives = 5
At time zero =100%
At 1st half life = 100%/2 = 50%
At second half life = 50%/2 = 25%
At third half life = 25%/ 2 = 12.5%
At 4th half life = 12.5% /2 = 6.25%
At 5th half life = 6.25% /2 = 3.125%
Answer:
Heat is the transfer of energy. During energy transfer, the energy moves from the hotter object to the colder object. This means that the hotter object will cool down and the colder object will warm up. The energy transfer will continue until both objects are at the same temperature.
Explanation:
It only takes mercury 88 days to go around the sun, and if the man is 50 years old he would be 18,250 days old, so he would've gone around the sun 207.39 times.
<h3><u>Answer;</u></h3>
Two glucose molecules
<h3><u>Explanation;</u></h3>
- Maltose is a disaccharide that is made up of two glucose molecules joined with an alpha(1-4) bond.
- <em><u>Maltose is produced by the enzymatic hydrolysis of starch, a polysaccharide, catalyzed by the enzyme amylase. Maltose is then hydrolyzed by the enzyme maltase to produce two molecules of d-glucose.</u></em>
- <em><u>The enzyme maltase efficiently catalyses the hydrolysis of maltose into 2 glucose molecules. </u></em>
Answer:
1.009 atm is the total pressure for the mixture
Explanation:
To determine the total pressure in atm, of the three gases (N₂, O₂ and Ar) we have to sum all the values.
Sum of partial pressures in a mixture = Total pressure
First of all, we need to convert the values from mmHg to atm
604.5 mmHg . 1atm / 760 mmHg = 0.795 atm
162.8 mmHg . 1atm / 760 mmHg = 0.213 atm
0.500 mmHg . 1atm / 760 mmHg = 6.58×10⁻⁴ atm
Partial pressure N₂ + Partial pressure O₂ + Partial pressure Ar = Total P
0.795 atm + 0.213 atm + 6.58×10⁻⁴ atm = 1.009 atm
