3 years ago

What determines the number of possible sub levels?

Chemistry

1 answer:

sp2606 [1]3 years ago

5 0

<span>There are 5 orbitals in the d level. Each orbital holds 2 electrons for a</span>

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carbon and tin are both in the fourth column of the table which would you expect to have the greater electronegativity

Eduardwww [97]

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Explanation:

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A 515cm^3 flask contains 0.460 g of a gas at a pressure of 153 kPa and a temperature of 322K. What is the molecular mass of this

erastovalidia [21]

Answer:

Molecular mass, $M=28.89\ \text{g/mol}$

Explanation:

Given that,

Mass of gas, m = 0.46 g

Volume of the container, V = 515 cm^3

Pressure, P = 153 kPa

Temperature, T = 322 K

We need to find the molecular mass of this gas. We know that,

PV =nRT

n = no of moles

$n=\dfrac{PV}{RT}\\\\n=\dfrac{153\ kPa\times 0.515\ L}{8.31447\ LkPaK^{-1}{mol^{-1}}\times (322+273)\ K }\\\\n=0.01592\ \text{moles}$

No of moles = mass/molecular mass

Let molecular mass is M

$M=\dfrac{m}{n}\\\\M=\dfrac{0.46}{0.01592}\\\\M=28.89\ \text{g/mol}$

So, the molecular mass of this gas is $28.89\ \text{g/mol}$

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True or False. Isotopes have different chemical properties. Explain why?

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