Answer:
Option d is correct option = Frequency of light is 6.56×10⁻² Hz
Explanation:
Given data:
Frequency of light = ?
wavelength of light = 4.57×10⁹m
Solution:
Formula:
Speed of light = wavelength × frequency
c = λ × f
f = c/λ
This formula shows that both are inversely related to each other.
The speed of light is 3×10⁸ m/s
Frequency is taken in Hz.
It is the number of oscillations, wave of light make in one second.
Wavelength is designated as "λ" and it is the measured in meter. It is the distance between the two crust of two trough.
Now we will put the values in formula.
f = 3×10⁸ m/s / 4.57×10⁹m
f = 0.656×10⁻¹s⁻¹
s⁻¹ = Hz
f = 0.656×10⁻¹ Hz or 6.56×10⁻² Hz
Answer:
The answer to your question is:
a) 3.87 mol of CO2
b) 14.63 mol of O2
Explanation:
2C4H10(g) + 13O2(g) → 8CO2(g) + 10H2O(g)
a)
CO2 = ?
Butane 0.968 moles
From the balance equation 2 moles of butane ---------- 8 moles of CO2
0.968 moles of butane ------ x
x = (0.968 x 8) / 2
x = 3.87 moles of CO2
b)
moles O2 = ?
butane = 2.25 mol
From the balance equation
2 moles of butane ---------- 13 mol O2
2.25 mol ---------- x
x = (2.25 x 13) / 2
x = 14.63 mol of O2
Answer:
A suction bulb or pipette pump to suction the sample.
Explanation:
There are different types of pipettes that can be used in a laboratory:
- Volumetric pipette-used to transfer a specific calculated amount of liquid
- Graduated pipettes-used to transfer different calculated amounts of liquid from one container to another.
- Micropipettes-used to transfer small amounts of liquids
- Pasteur pipettes- just like micropipettes, pasteur pipettes are used to transfer small amounts of liquids, but manually. They are also called droppers.
Au2S is =<u><em> 426 g/mol</em></u> for molar mass
Answer:
Lemonade is a man made material
Explanation:
