You can determine its weight by simply weighing it. Then, you use the mass to divide to the empirical molar mass. This is done by getting the molar ratio of the individual elements within that compound. Use the least amount of moles of the elements and divide it with the rest. Then, you'd get the empirical formula.
<u>Answer:</u> Th value of A is 
, value of B is 0.84 L, value of C is 1.1 L and the value of D is 
<u>Explanation:</u>
To calculate the missing values of volume and temperature, we will use Charles' Law.
This law states that volume is directly proportional to the temperature of the gas at constant number of moles and pressure. Equation given by this law is:
....(1)
where,
are initial volume and temperature of the gas
are final volume and temperature of the gas
Putting values in equation 1, we get:
Whenever multiplication and division are involved, the answer must not contain, more number of significant figures as there are in the least precise term.
Hence, the value of A is
Putting values in equation 1, we get:
Hence, the value of B is 0.84L
Putting values in equation 1, we get:
Hence, the value of C is 1.1L
Putting values in equation 1, we get:
Hence, the value of D is
The chromosphere is the third and the lowermost layer of the sun and appears bright red. This chromosphere region is visible only during the total solar eclipse. Thus, option B is correct.
<h3>What is a solar eclipse?</h3>
A total solar eclipse is an event in which the new moon is in between the Earth and the Sun resulting in the formation of the dark shadow on the Earth's surface.
During this eclipse, the chromosphere region of the sun is visible as it was hidden by the photosphere before the eclipse. It shines bright red and yellow as the spectral line of the hydrogen alpha is emitted.
Therefore, option B. the chromosphere region is visible only during the total solar eclipse.
Learn more about the eclipse here:
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The electrons fill energy levels from the lowest available energy level, based of three typical rules.
1) Follow Aufbau rule: fill from lower to higher energy levels (1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p)
2) Pauly exclusion principle: two electrons can not have the same four quantum numbers
3) Hund rule: if the orbitals have the same energy, the electrons must go to different orbitals before two occupies the same orbital.
