Explanation:
It is known that relation between wavelength and frequency is as follows.
where, = wavelength
c = speed of light =
[/tex]\nu[/tex] = frequency
It is given that frequency is . Hence, putting this value into the above formula and calculate the wavelength as follows.
=
or, =
Thus, we can conclude that wavelength of given radiation is .
22.3 is the answer to this question
Answer:
3. 0.36 L to the nearest hundredth
4. 542.40 L to the nearest hundredth
Explanation:
Question 3
Volume = 8.16 L
Number of moles = ?
At STP;
Temperature = 273 K
Pressure = 1 atm
Using the General gas equation;
PV = nRT where R = General gas constant = 0.0821
n = PV / RT
n = (1 * 8.16 ) / (0.0821 * 273)
n = 8.16 / 22.4133 = 0.3641 ≈ 0.36 to the nearest hundredth
Question 4
Volume = ?
Number of moles = 24.2 mol
At STP;
Temperature = 273 K
Pressure = 1 atm
Using the General gas equation;
PV = nRT where R = General gas constant = 0.0821
V = nRT / P
V = 24.2 * 0.0821 * 273 / 1
V = 542.402 L ≈ 542.40 to the nearest hundredth
Answer:
12 molecules of carbon dioxide
24 molecules of water
Explanation:
Given parameters:
Number of molecules of methane = 12 molecules
Unknown:
Number of molecules of carbon dioxide = ?
Number of molecules of water = ?
Solution:
The given amount of methane is the limiting reagent in this reaction. By this, we can ascertain the amount of products that will be formed and the extent of the reaction.
We first write the balanced chemical equation for this reaction;
CH₄ + 2O₂ → CO₂ + 2H₂O
From balanced equation;
1 mole of methane produced 1 mole of carbon dioxide
12 molecules of methane will produce 12 molecules of carbon dioxide
Also;
1 mole of methane produced 2 moles of water;
12 molecules of methane will produce (12 x 2)molecules = 24 molecules of water