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3 years ago

Which is a set of valid quantum numbers?

Chemistry

2 answers:

WITCHER [35]3 years ago

6 0

Answer:

D: n = 4, l = 3, m = 3

Explanation:

Got it right on edg :)

Wewaii [24]3 years ago

3 0

Answer:

4th

Explanation:

n = 4, l = 4, m = 4 L cant be 4 when n is 4.

n = 1, l = –2, m = 0 L can only be positive integers such as 0,1,2,3,4,5

n = –1, l = 0, m = 0 n can only be positive integers or capital letters such as K,L,M,N..

n = 4, l = 3, m = 3 these quantum numbers represent a subshell in 4f orbital

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Answer:

briana

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Explanation:

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3 years ago

How many molecules are there in 79g of Fe2O3? how many atoms is this?

Leya [2.2K]

There are approximately 160 grams in 1 mol of Fe2O3 molecules. Therefore, there would be 79/160= 0.49375 mols of Fe2O3 molecules in 79 grams. There are 5 atoms in total for each molecule of Fe2O3, therefore 79/160 * 5 = 79/32 = 2.46875 mols of atoms.

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3 years ago

A solution is diluted by adding more _____, which means the _____ of the solution increases but the amount (moles) of solute sta

Rudik [331]

Answer:solvent ; volume

Explanation:

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2 years ago

How many molecules are in 41.8 g of sulfuric acid

Anton [14]

Answer

× 10²³ molecules are in 41.8 g of sulfuric acid

Explanation

The first step is to convert 41.8 g of sulfuric acid to moles by dividing the mass of sulfuric acid by its molar mass.

Molar mass of sulfuric acid, H₂SO₄ = 98.079 g/mol

$Mole=\frac{Mass}{Molar\text{ }mass}=\frac{41.8\text{ }g}{98.079\text{ }g\text{/}mol}=0.426187053\text{ }mol$

Finally, convert the moles of sulfuric acid to molecules using Avogadro's number.

Conversion factor: 1 mole of any substance = 6.022 × 10²³ molecules.

Therefore, 0.426187053 moles of sulfuric acid is equal

$\frac{0.426187053\text{ }mol}{1\text{ }mol}\times6.022×10²³\text{ }molecules=2.57\times10^{23}\text{ }molecules$

Thus, 2.57 × 10²³ molecules are in 41.8 g of sulfuric acid.

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1 year ago

Please solve this for 13 points

Anit [1.1K]

Answer:

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Explanation:

everybody already known its sodium

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3 years ago