There are 6.022 × 10²³ atoms in 39.948 g of argon and 4.0026 g of helium.
Explanation:
39.945 g/mole is the molar mass of argon so 39.948 g of argon are equal to 1 mole of argon.
4.0026 g/mole is the molar mass of helium so 4.0026 g of helium are equal to 1 mole of helium.
We know that Avogadro's number tell us the number of particles in 1 mole of substance which is 6.022 × 10²³.
So in 39.948 g of argon and 4.0026 g of helium contains the same number of atoms, 6.022 × 10²³.
Learn more about:
Avogadro's number
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Answer:
335.35 grams
Explanation:
Convert grams of H2SO4 to moles and get 4.08 moles.
Using stoichiometry, the chemical equation tells us that for every mole of H2SO4, one mole of Na2SO4 is produced. This means that, theoretically, you should get 4.08 moles.
Convert moles to grams and get 335.34 g.
However, if you were to actually perform this reaction, you would get less than the theoretical value.
Hope this helps! <3
Answer:
dependent variable: plant growth
independent: sunlight impact/amount of light
Explanation:
Answer:
ummm what is that give me more detail please
Answer:
B.
Explanation:
Buffer has equal concentrations of A- and HA.
B. when [F -] is equal to [HF]
