Answer:
The energy of a mole of photon is 2.99x10⁵ J.
Explanation:
First, we need to remember that in 1 mol of photons we have 6.02x10²³ photons.
The energy is given by:
Where:
h: is the Plank's constant = 6.62x10⁻³⁴ J.s
ν: is the frequency = 7.5x10¹⁴ Hz
N: is the number of photons = 6.02x10²³ photons
Hence, the energy of a mole of photon is:
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The correct answer is A.
Mixtures can be easily separated and are created through physical changes while compounds combine together and are created through chemical changes.
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Answer:
Statements B (1-hexene will show an absorption at 1650cm-1 but cyclohexane will not)
C (both cyclohexane and 1-hexene will show C-H absorptions at about 2950cm-1)
are both true
Answer:
1. Zinc sulfide
: about the same solubility, no common ion is found.
2. Silver chloride
: less solubility due to the presence of chloride ions provided by the 0.10 M hydrochloric acid.
3. Lead iodide : about the same solubility, no common ion is found.
4. Silver hydroxide
: about the same solubility, no common ion is found.
Explanation:
Hello,
In this case, we first must remember that adding a common ion (which is related with the dissolving solid) decreases the solubility of the insoluble solid due to the fact Le Chatelier's principle states the reaction will shift leftwards (reactants) to reestablish equilibrium, therefore, we have:
1. Zinc sulfide
: about the same solubility, no common ion is found.
2. Silver chloride
: less solubility due to the presence of chloride ions provided by the 0.10 M hydrochloric acid.
3. Lead iodide : about the same solubility, no common ion is found.
4. Silver hydroxide
: about the same solubility, no common ion is found.
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Answer:
The Answer is B. X: Opaque Objects
> > > Y: Transparent Objects
Explanation: