On a hot day, a student places a glass of cold lemonade on a table outdoors. After a few minutes, water droplets have formed on
the outside of the glass. Is energy absorbed or released by the cold lemonade? Explain your answer.
Compare average kinetic energy for the air molecules and lemonade molecules when the student first places the lemonade outdoors. Explain your answer.
Explain how and why the water droplets form on the outside of the glass.
If there are 2 electrons in the same orbital, the spin numbers would be different for both of these 2 electrons. One would have an up spin and the other a down spin.
The sample contains 38.7 g of Ca, 19.9 g of P, and 41.2 g of O as the proportions show.
Then we can calculate the number of moles of each component (n = m/atomic mass).
The number of moles of Ca = 38.7/40.078 = 0.96 mol.
The number of moles of P = 19.9/30.97 = 0.64 mol.
The number of moles of O = 41.2/15.99 = 2.75 mol.
Now, we can get the molar ratios of different components (Ca, P, and O) in the sample by dividing the number of moles of each component by the lower number of moles, that we should divide the number of moles by (0.64).
