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2 years ago

Calculate the volume at STP of the following compounds: 0,01 mol of hydrogen chloride gas.

Physics

1 answer:

Nady [450]2 years ago

8 0

The volume at STP of the following compounds: 0,01 mol of hydrogen chloride gas is 0.224 L.

As we know, one mole of a gaseous substance occupies 22.4 litre, so volume occupied by 0.01 mole hydrogen chloride gas is 0.224 L.

The equation characterising the states of hypothetical gases stated mathematically by combinations of empirical and physical constants is known as the Ideal Gas Equation. It is the relationship between pressure, volume, moles, and temperature.

The ideal gas equation was developed by merging many gas laws, including Charles' law, Boyle's law, Gay-law, Lussac's and Avogadro's law. The equation of state of a hypothetical ideal gas is the ideal gas law. It approximates the behaviour of gases under certain conditions.

An ideal gas is a fictitious gas composed of randomly moving particles that collide in totally elastic collisions. Even while there is no such thing as an ideal gas, most gases tend to exhibit these characteristics as their density lowers. This occurs because the intermolecular distances between gas molecules are so great that they do not interact.

Hence, in all the standard conditions of temperature, pressure and number of moles, the molar volume is 22.4 Litre which is also considered as a standard.

Learn more about ideal gas equation brainly.com/question/4147359

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Which of the following are found within the electromagnetic spectrum? Check all that apply. sound waves visible light X rays ult

sattari [20]

Answer:

Visible light

X rays

ultraviolet radiation

gamma rays

microwave radiation

Explanation:

Electromagnetic waves consist of oscillating electric and magnetic fields which vibrate in a direction perpendicular to the direction of motion of the wave (transverse wave). Electromagnetic waves have all same speed in a vacuum ( $c=3.0\cdot 10^8 m/s$ , known as speed of light) and are classified into 7 different types according to their frequency and wavelength. This classification is called electromagnetic spectrum.

From lowest to highest wavelength, the 7 types are:

Gamma rays

X-rays

Ultraviolet radiation

Visible light

Infrared radiation

Microwaves

Radio waves

Sound waves, on the contrary, do not belong to the electromagnetic spectrum, since they are another type of wave called mechanical waves (which consist of vibrations of the particles in a medium).

8 0

3 years ago

What is the mechanical advantage of the screw shown below? O A. 14.1 O B. 2 O C. 12.6 O D. 8.2.

Vilka [71]

Answer: C. 12.6

Explanation: 2*pi*1.8= 11.304

11.304/0.9= 12.56

3 0

3 years ago

A cow wanders 30 m North, turns 22 degrees right of its original path, and wanders another 40 m. Find its total displacement.

scoundrel [369]

Answer:OB=58.3m

Explanation:

So here cow wanders 30m in north and turns 22 degrees in right side and moves 40m more, as shown in figure given.

now take the starting point as a origin such that cow moves in x-y co-ordinate axis.

As shown in figure length OA is the length when cow moves in north or y direction. Later she takes 22 degrees turn to right and moves 40m more.

So the final displacement is the length of cow from the origin that is length OB.

now co-ordinates of B are [40cos22°,40sin22°+30] i.e [37.084,44.984]

now displacement of cow= length of OB

= $\sqrt{[37.084]^{2}+[44.984]^{2} }$

= $\sqrt{3398.78}$

OB = $58.3$

7 0

1 year ago

In a nuclear physics experiment, a proton (mass 1.67×10^(−27)kg, charge +e=+1.60×10^(−19)C) is fired directly at a target nucleu

Arte-miy333 [17]

The given question is incomplete. The complete question is as follows.

In a nuclear physics experiment, a proton (mass $1.67 \times 10^(-27)$ kg, charge +e = $+1.60 \times 10^(-19)$ C) is fired directly at a target nucleus of unknown charge. (You can treat both objects as point charges, and assume that the nucleus remains at rest.) When it is far from its target, the proton has speed $2.50 \times 10^6$ m/s. The proton comes momentarily to rest at a distance $5.31 \times 10^(-13)$ m from the center of the target nucleus, then flies back in the direction from which it came. What is the electric potential energy of the proton and nucleus when they are $5.31 \times 10^{-13}$ m apart?

Explanation:

The given data is as follows.

Mass of proton = $1.67 \times 10^{-27}$ kg

Charge of proton = $1.6 \times 10^{-19} C$

Speed of proton = $2.50 \times 10^{6} m/s$

Distance traveled = $5.31 \times 10^{-13} m$

We will calculate the electric potential energy of the proton and the nucleus by conservation of energy as follows.

$(K.E + P.E)_{initial}$ = $(K.E + P.E)_{final}$

$(\frac{1}{2} m_{p}v^{2}_{p}) = (\frac{kq_{p}q_{t}}{r} + 0)$

where, $\frac{kq_{p}q_{t}}{r} = U = Electric potential energy$

U = $(\frac{1}{2}m_{p}v^{2}_{p})$

Putting the given values into the above formula as follows.

U = $(\frac{1}{2}m_{p}v^{2}_{p})$

= $(\frac{1}{2} \times 1.67 \times 10^{-27} \times (2.5 \times 10^{6})^{2})$

= $5.218 \times 10^{-15} J$

Therefore, we can conclude that the electric potential energy of the proton and nucleus is $5.218 \times 10^{-15} J$ .

4 0

4 years ago

I need help please please

Brut [27]

Answer:

See the explanation for the answer.

Explanation:

Question 1: Both

Question 2: E

Question 3: P

Question 4: E

Question 5: E

Question 6: Both

Question 7: E

Question 8: Both

Question 9: E

Question 10: E

Question 11: E

Question 12: Both

Question 13: The three statements that the modern cell theory made were how in all organisms the cell is the smallest living unit, how all living things consist of cells, and that all cells are "created" from already pre-existing cells.

I think that these answers are correct. I'm sorry if they aren't, I tried my best with the assignment.

Have a lovely day!

6 0

3 years ago