1) One of only two elements that are in a liquid state at room temperature
2) High coefficient of expansion allows even slight changes in temperature to be detected
3) Has a high boiling point allowing it to measure higher temperatures
Answer: 0.5 moles
Explanation:
Based on Avogadro's law:
1 mole of any substance has 6.02 x 10^23 molecules
So, 1 mole of caffeine = 6.02 x 10^23 molecules
Z moles = 3x10^23 molecules
To get the value of Z, cross multiply:
(3 x 10^23 molecules x 1mole) = (6.02 x 10^23 molecules x Z moles)
3 x 10^23 = (6.02 x 10^23 x Z)
Z = (3 x 10^23) ➗ (6.02 x 10^23)
Z = 0.498 moles
[Round 0.498 moles to the nearest tenth as 0.5 moles]
Thus, there are approximately 0.5 moles of caffeine
It belongs to one of two groups which orbit the sun at the same distance as Jupiter, at the Lagrangian points roughly 60 degrees ahead of it and behind it.
Explanation:
The Sun is Earth’s major source of energy, yet the planet only receives a small portion of its energy and the Sun is just an ordinary star. Many stars produce much more energy than the Sun
