Chemical energy turns into heat and light energy.
There’s energy stored(potential) in the log, so when it burns, that energy is released as light and heat
<span>The formula for the volume of a sphere is: V = (4/3)π r^3
But you only know the diameter that being 24 cm.
The easiest thing to do is to divide by 2 to get the radius. r = 12
Then plug that in: V = (4/3)π 12^3
:)
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Answer:
80.2L
Explanation:
Given parameters:
Initial volume of oxygen = 47.2L
Initial pressure of oxygen = 1240torr
Final pressure = 730torr
Unknown:
Final volume = ?
Solution:
To solve this problem, we apply the Boyle's law proposed by Robert Boyle. It states that "the volume of a fixed mass of a gas varies inversely as the pressure changes if the temperature is constant".
Mathematically;
P₁V₁ = P₂V₂
P and V are pressure and volume
1 and 2 are initial and final states
1240 x 47.2 = 730 x V₂
V₂ = 80.2L
It is easier to determine this if we draw the structural formula of lactic acid as shown in the attached picture. There are three functional groups in lactic acid: carboxyl group, hydroxyl group, and the parent alkane chain. Any of the hydrogens in the alkane chain is the least acidic. Then, it is followed by the H in the hydroxyl group. The most acidic is the H in the carboxyl group.