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3 years ago

The wavelength propagates to 15 m with a frequency of 0.3 HZ What is the speed of this wave?

Chemistry

1 answer:

ololo11 [35]3 years ago

8 0

Answer:

$c=50\frac{m}{s}$

Explanation:

Hello!

In this case, given the relationship between velocity, wavelength and frequency:

$c=\lambda *f$

By plugging in the given wavelength and frequency, we obtain the following speed:

$c=15m*0.3\frac{1}{s}\\\\c=50\frac{m}{s}$

Best regards!

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Answer:

Explanation:

This problem is very similar to the other that you put before, so, we'll use the same principle here.

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Where:

P: pressure in atm

V: volume in L

T: Temperature in K.

n: moles

R: Gas constant (In this case, we'll use 0.082 L atm/K)

to get the molar mass of the gas, we need to know the moles, and with the mass, we can know the molar mass. However we can put the ideal gas expression with the molar mass in this way:

we know that n is mole so:

n = g/MM

If we put this in the idea gases expression we have:

PV = gRT/MM

Solving for MM we have:

MM = gRT/PV

Now, let's convert the temperature and volume to K and L respectively:

T = 67 + 273 = 340 K

V = 350 / 1000 = 0.35 L

Now all we have to do is put all the data into the expression:

MM = 0.79 * 0.082 * 340 / 0.9 * 0.35

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Now, the closest answer of your options would be 72 g/mol. This could be easily explained because we do not use all the significant figures of all numbers, including the gas constant of R. However, all the work, calculations and procedure is correct and fine, and we only have a minimum range of 2 units.

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Explanation:

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If the highest priority groups are on the same side, it is known as cis-form and if the highest priority groups are on opposite side, it is known as trans-form.

We are given a chemical compound, which is 2-pentene.

In this the highest priority groups are methyl and ethyl groups.

When the groups are on the same side, it forms cis-form and when the groups are on the opposite side, it forms trans-form

The structure of the geometrical isomers are attached below.

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Note: Above question is incomplete: Complete question is read as
According the the arrhenius theory, which species does an acid produce in an aqueous solution?
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Reason:
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