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3 years ago

The radio station z107.7 broadcasts radio waves. What do the numbers 107.7 represent?

Chemistry

2 answers:

PilotLPTM [1.2K]3 years ago

6 0

Hello

It represents the certain radio station that you are currently using and it is the smae number of radio waves

hope this helps

plz mark me as brainliest

Lunna [17]3 years ago

3 0

Answer : The number 107.7 represent the frequency.

Explanation :

Frequency : It is defined as the number of oscillations per second. the S.I unit of frequency is, Hertz (Hz)

Formula of frequency is,

$f=\frac{1}{t}$

where,

f = frequency

t = time period

Radio frequency : It is the rate of oscillation of electromagnetic radio waves within the range of 3 kHz to 300 GHz.

Therefore, the number 107.7 represent the frequency.

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2C₂H6 + 702 —>4C02 + 6H₂O

navik [9.2K]

Answer:

975.56×10²³ molecules

Explanation:

Given data:

Number of molecules of C₂H₆ = 4.88×10²⁵

Number of molecules of CO₂ produced = ?

Solution:

Chemical equation:

2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O

Number of moles of C₂H₆:

1 mole = 6.022×10²³ molecules

4.88×10²⁵ molecules×1mol/6.022×10²³ molecules

0.81×10² mol

81 mol

Now we will compare the moles of C₂H₆ with CO₂.

C₂H₆ : CO₂

2 : 4

81 : 4/2×81 = 162 mol

Number of molecules of CO₂:

1 mole = 6.022×10²³ molecules

162 mol ×6.022×10²³ molecules / 1 mol

975.56×10²³ molecules

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