The percent by mass of Lead in Lead (IV) oxide (
) is equal to 86.62%.
<u>Scientific data:</u>
- Molar mass of Lead = 207.2 g/mol.
- Molar mass of oxygen = 16 g/mol.
To calculate the percent by mass of Lead in Lead (IV) oxide ():
First of all, we would calculate the molar mass of Lead (IV) oxide ();
Lead (IV) oxide () = 239.2 g/mol.
<h3>How to calculate percent by mass.</h3>
For the percent by mass of Lead, we would calculate it by using this formula:
Substituting the parameters into the formula, we have;
Percent mass of Lead = 86.62%
Read more on percent mass here: brainly.com/question/15182450
Answer:
Hydrogen is collected by downward displacement of water as it is less denser than water. Hence it comes out at the surface of water . It is insoluble in water so it does not dissolve in water
Answer:
Gases
Explanation:
Gases have the highest kinetic energy of any state of matter and thus occur at the highest temperatures. Increasing the temperature of a gas in an open system will not further change the state of matter because the gas molecules will only become infinitely further apart.
The difference is due to the degree of dissociation of the substances. HCl dissociates completely into ions when added to water, while this is not the case for HC₂H₃O₂; therefore, HCl has a lower pH.
