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2 years ago

The measure of the bending of ray of light passing from one medium in another

Chemistry

1 answer:

Assoli18 [71]2 years ago

3 0

Answer:

refractive index . It is denoted by mew (u).

u = sin i / sin r

It is a unitless and dimensionless quantity. It is just a number.

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Plz help I’m pretty confused on this question

sergeinik [125]

Answer:

Bohr model A

Explanation:

It has more valance electrons therefore has more interaction between the atoms and has more electronegativity.

7 0

2 years ago

Where can find the neutrons in an atom

il63 [147K]

Answer:

neutrons are found in the nucleus of an atom.

Explanation:

6 0

2 years ago

Read 2 more answers

The solubility of oxygen gas in water at 40 ∘c is 1.0 mmol/l of solution. What is this concentration in units of mole fraction?

juin [17]

The formula for mole fraction is:

$mole fraction of solute = \frac{number of moles of solute}{total number of moles of solution}$ -(1)

The solubility of oxygen gas = 1.0 mmol/L (given)

1.0 mmol/L means 1.0 mmol are present in 1 L.

Converting mmol to mol:

$1.00 mmol\times \frac{1 mol}{1000 mmol} = 0.001 mol$

So, moles of oxygen = 0.001 mol

For moles of water:

1 L of water = 1000 mL of water

Since, the density of water is 1.0 g/mL.

$Density = \frac{mass}{volume}$

$Mass = 1.0 g/ml\times 1000 mL = 1000 g$

So, the mass of water is 1000 g.

Molar mass of water = 18 g/mol.

Number of moles of water = $\frac{1000 g}{18 g/mol} = 55.55 mol$

Substituting the values in formula (1):

$mole fraction = \frac{0.001}{55.55+0.001}$

$mole fraction = 1.8\times 10^{-5}$

Hence, the mole fraction is $1.8\times 10^{-5}$ .

7 0

2 years ago

Which if the following sentences is not true about nitrogen gas at room temperature

Ivan

Answer:

Bud your answer would be D.

Hope that helps.

4 0

2 years ago

How many atoms are in this given equation 6Mn3C2

Ilia_Sergeevich [38]

Answer:

There are three atoms in the equation

6 0

2 years ago