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3 years ago

What is the difference between energy levels, sub levels, and orbitals?

Chemistry

2 answers:

Lorico [155]3 years ago

7 0

Explanation:

Orbitals are spaces that have a high probability of containing an electron. ... The s sublevel has just one orbital, so can contain 2 electrons max. The p sublevel has 3 orbitals, so can contain 6 electrons max. The d sublevel has 5 orbitals, so can contain 10 electrons max.

astraxan [27]3 years ago

3 0

Answer:

There are different energy levels in atoms. There are also different orbitals: there is 1s orbital, 3p orbitals, 5d orbitals and 7f orbitals. Not sure about sub levels...

Explanation:

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A chemist dissolves 248mg of pure hydrochloric acid in enough water to make up 140mL of solution.Calculate the pH of the solutio

evablogger [386]

Answer : The pH of the solution is, 1.31

Explanation : Given,

Mass of $HCl$ = 248 mg = 0.248 g (1 mg = 0.001 g)

Volume of solution = 140 mL

Molar mass of $HCl$ = 36.5 g/mole

First we have to calculate the concentration of hydrochloric acid.

Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.

Formula used :

$\text{Molarity}=\frac{\text{Mass of }HCl\times 1000}{\text{Molar mass of }HCl\times \text{Volume of solution (in mL)}}$

Now put all the given values in this formula, we get:

$\text{Molarity}=\frac{0.248g\times 1000}{36.5g/mole\times 140mL}=0.0485mole/L=0.0485M$

The concentration of HCl is, 0.0485 M

As we know that, HCl dissociates to give hydrogen ion and chloride ion.

The dissociation reaction is:

$HCl\rightarrow H^++Cl^-$

Concentration of HCl = Concentration of H⁺ = Concentration of Cl⁻ = 0.0485 M

Now we have to calculate the pH of the solution.

pH : It is defined as the negative logarithm of hydrogen ion concentration.

Mathematically,

$pH=-\log [H^+]$

$pH=-\log (0.0485)$

$pH=1.31$

Therefore, the pH of the solution is, 1.31

6 0

2 years ago

156g sample of steel had a volume of 20.0ml what is the density of the steel sample

allochka39001 [22]

Density = mass / volume so
Density = 156 / 20.0

Density = 7.8 g/mL

6 0

3 years ago

Maressa has 150 g of a NaCl solution that has concentration of 15.0 % NaCl (mm). How much NaCl is dissolved in that solution? O

Iteru [2.4K]

Answer:

I don't know if option e. is 22,5 g. because that is the correct answer for this. 15% NaCl (mm) gives you the information that in 100 g of solution, you have 15 g of solute. So, if in 100 g of solution you have 15 g of NaCl, in 150 g of solution, how much. Try the rule of three.

Explanation:

4 0

3 years ago

What is a condensate?

Iteru [2.4K]

Answer:

A condensate is a liquid formed by condensation.

Explanation:

3 0

2 years ago

Read 2 more answers

What is the chemical formula ?<br> Is it H20?<br> I will give brainliest !!