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3 years ago

White light can be separated into a spectrum of colors because each color of light

Chemistry

2 answers:

MA_775_DIABLO [31]3 years ago

5 0

Each color is refracted differently, each bends at a different angle

SOVA2 [1]3 years ago

3 0

White light can be separated into all seven major colors of the complete spectrum or rainbow by using a diffraction grating or a prism. ... The prism separates light into colors because each color passes through the
prism at a different speed and angle.
Hope this helps my dude !

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Chemistry course is intended for what type of students?

yulyashka [42]

Answer:

Chemistry course is intended for students who did not take chemistry in high school or who struggled with high school chemistry.

Explanation:

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3 years ago

What mass of nitrogen dioxide, NO2, would be produced by the decomposition of 75.0 g of copper (II) nitrate?

astraxan [27]

Mole number of 75 g is 0.4 mol. NO2 is 0.8 mol and is 36.8 g.

6 0

3 years ago

Nickel and carbon monoxide react to form nickel carbonyl, like this: (s)(g)(g) At a certain temperature, a chemist finds that a

horsena [70]

The question is incomplete, here is the complete question:

Nickel and carbon monoxide react to form nickel carbonyl, like this:

$Ni(s)+4CO(g)\rightarrow Ni(CO)_4(g)$

At a certain temperature, a chemist finds that a 2.6 L reaction vessel containing a mixture of nickel, carbon monoxide, and nickel carbonyl at equilibrium has the following composition:

Compound Amount

Ni 12.7 g

CO 1.98 g

$Ni(CO)_4$ 0.597 g

Calculate the value of the equilibrium constant.

<u>Answer:</u> The value of equilibrium constant for the reaction is 2448.1

<u>Explanation:</u>

We are given:

Mass of nickel = 12.7 g

Mass of CO = 1.98 g

Mass of $Ni(CO)_4$ = 0.597 g

Volume of container = 2.6 L

To calculate the number of moles for given molarity, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Given mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}$

$\text{Equilibrium concentration of nickel}=\frac{12.7}{58.7\times 2.6}=0.083M$

$\text{Equilibrium concentration of CO}=\frac{1.98}{28\times 2.6}=0.0272M$

$\text{Equilibrium concentration of }Ni(CO)_4=\frac{0.597}{170.73\times 2.6}=0.00134M$

For the given chemical reaction:

$Ni(s)+4CO(g)\rightarrow Ni(CO)_4(g)$

The expression of equilibrium constant for the reaction:

$K_{eq}=\frac{[Ni(CO)_4]}{[CO]^4}$

Concentrations of pure solids and pure liquids are taken as 1 in equilibrium constant expression.

Putting values in above expression, we get:

$K_{eq}=\frac{0.00134}{(0.0272)^4}\\\\K_{eq}=2448.1$

Hence, the value of equilibrium constant for the reaction is 2448.1

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4 years ago

A 0.5 mol sample of he(g) of ne(g) are placed separately in two 10.0 l rigid containers at 25°c. each container has a pinhole op

Serjik [45]

The movement of gases through pinhole is called effusion and the effusion rate indirectly proportional to the molar mass of gas

The lighter mass gas effuses faster than the heavier one
so He(g) will escapes faster and it will move with higher average speed because it has less mass than Ne(g)

7 0

3 years ago

Make observations. describe the system in each image by filling out the table below.

Snezhnost [94]

Answer:

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Explanation:

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3 years ago