Answer:
0.054 moles of carbon dioxide will be produced
Explanation:
Step 1: Data given
Number of moles oxygen = 0.085 moles
Step 2: The balanced equation
2C8H18 + 25O2 → 16CO2 + 18H2O
Step 3: Calculate moles of carbon dioxide
For 2 moles octane we need 25 moles oxygen gas to produce 16 moles carbon dioxide gas and 18 moles water vapor
0.0544
For 0.085 moles O2 we'll have 16/25 * 0.085 = 0.054 moles CO2
0.054 moles of carbon dioxide will be produced
The so-called photoelectric effect
Answer:
51.0 meters/second is the final speed
Answer:
D: Increasing the amount of water.
Explanation:
Choice A: increasing the pressure can force the liquid to stay a liquid and affect the boiling point (decrease it).
Choice B and C: both involve colligative properties, adding a solute to water will increase the boiling point of water.
Choice D: just having more water does not change the boiling point of the water as this minimize the effect of any external factor.
<em>So, the right choice is: D: Increasing the amount of water.</em>
Answer:
λ = 0.85×10³⁰ m
Explanation:
Wavelength of radiation = ?
Frequency of radiation = 3.52×10⁻²² Hz
Solution:
Formula:
c = f × λ
c = speed of wave = 3×10⁸ m/s
by putting values,
3×10⁸ m/s = 3.52×10⁻²² Hz × λ
λ = 3×10⁸ m/s / 3.52×10⁻²² s⁻¹
λ = 0.85×10³⁰ m