They contain the same number of molecules; however, the masses can differ depending on the molar masses of the substances.
Answer:
The answer is below
Explanation:
Resolution is the smallest unit of measurement that can be measured by a measuring instrument. Each point on the ruler is 0.1 cm and the difference between any two points, about 0.01 cm cam be measured. The minimum measurement (resolution) that can be measured by the ruler is 0.01 cm (two decimals), therefore it cannot measure up to three decimal places such as numbers like 2.755.
Answer:
5 × 10⁵ molecules (500,000 molecules)
Explanation:
Step 1: Convert 3 × 10⁻¹⁶ g to moles
We will use the molar mass of TCDD (321.97 g/mol).
3 × 10⁻¹⁶ g × 1 mol/321.97 g = 9 × 10⁻¹⁹ mol
Step 2: Convert 9 × 10⁻¹⁹ mol to molecules
The required conversion factor is Avogadro's number (6.02 × 10²³ molecules/mol).
9 × 10⁻¹⁹ mol × 6.02 × 10²³ molecules/1 mol = 5 × 10⁵ molecules
The sequence which represents the relationship between temperature and volume:
higher temperature --> more kinetic energy --> more space between particles higher volume
Explanation:
The above sequence is based on the Charles' law. This law states that at "a fixed mass of gas" and "at constant pressure", volume is directly proportional to temperature.
When the molecules in a container "collide with the wall", the pressure and momentum increase. Due to the increase in temperature the kinetic energy also increases. Thus, when the "momentum perpendicular" to the wall of the container is reversed it will have larger value. To reduce the rate of the collisions and to keep the pressure constant, the volume will have to be bncreased.
