Answer:
KO is the limiting reactant.
0.11 mol O₂ will be produced.
Explanation:
4 KO₂ + 2 H₂O ⇒ 4 KOH + 3 O₂
Find the limiting reagent by dividing the moles of the reactant by the coefficient in the equation.
(0.15 mol KO₂)/4 = 0.0375
(0.10 mol H₂O)/2 = 0.05
KO₂ is the limiting reagent.
The amount of product produced depends on the limiting reagent. To find how much is produced, take moles of limiting reagent and multiply it by the ratio of reagent to product. You can find the ratio by looking at the equation. For every 4 moles of KO₂, 3 moles of O₂ are produced.
0.15 mol KO₂ (3 mol O₂)/(4 mol KO₂) = 0.1125 mol O₂
0.11 mol O are produced.
Lead is often used to block out radiation
Explanation:
The given data is as follows.
Pressure of moist hydrogen gas = 1.018 atm
Pressure of water vapor = 
= 0.0421 atm
Formula to calculate the pressure of dry hydrogen gas is as follows.
Pressure of 
gas = 
Now, putting the given values into the above formula as follows.
Pressure of gas =
= 1.018 atm - 0.0421 atm
= 0.976 atm
Therefore, we can conclude that partial pressure of hydrogen gas in the given sample is 0.976 atm.
Answer:
1. Ionic solids dissolve in water.
2. Ionic solid is a better conductor compared to covalent solid.
Explanation:
1. Ionic solids dissolves in water because the water molecules hydrate the ions.When ionic compounds dissolve in water, they break apart into the ions that make them up through a process called dissociation.
Whereas covalent solids don't dissolve in water, instead making a separate layer on the water's surface.
For example table salt that is NaCl is an ionic solid.When we add the salt in water it completely dissolves in water and disappears on the other hand oil is a covalent solid, when we add it in water it does not dissolve and forms a layer on water surface.
2.Ionic solids conducts electricity when it dissolves in water. Because in aqueous form there are ions which conducts electricity.
But covalent solids does not conduct in any form neither in pure form nor in aqueous form because they are bond with shared electrons having no ions which conducts electricity.
