Answer:
2
Explanation:
As only 2 electrons can present in an orbital, so only 2 electrons in an atom can have this set of quantum numbers.
Answer:
.02232 mole
Explanation:
At STP each 22.4 liters is a mole
.5 liters / 22.4 l/mole = .02232 mole
Answer:
From top to bottom down a group, electronegativity decreases. This is because atomic number increases down a group.
Answer:
Explanation:
When determining empirical formulas of hydrates we have to find the mass of water which left the hydrate when heating The sample. This amount of water calculated will provide us with the correct ratio of moles water / moles anhydrate since moles water > moles anhydrate. The mistake might have been done while determining the water that left the sample so then we see and impropre result in ratios.
Answer: Hence, 2 moles of NaOH would neutralize 1 mole of 
Explanation:
One mole of hydrochloric acid neutralizes one mole of sodium hydroxide to give one mole of sodium chloride and one mole of water
When sulfuric acid is used in the place of HCl , 1 mole of sulfuric acid will neutralizes the 2 mole of sodium hydroxide and gives one mole of sodium sulfate and 2 moles of water. As we can see from the reaction:
Hence, 2 moles of NaOH would neutralize 1 mole of
