The amount of moles in 3.34 x10³⁴ formula unit of Cu(OH)₂ is 5.55 × 10¹⁰ moles
<u><em>calculation</em></u>
The amount of moles is calculated using the Avogadro's law constant
That is 1 moles = 6.02 × 10²³ formula units
? moles = 3.34 × 10³⁴ formula units
<em>by cross multiplication</em>
= {1 mole ×3.34 ×10³⁴ formula units ] / 6.02 × 10²³ formula units} = 5.55 ×10¹⁰ moles
The radioisotope U-238 is primarily used in dating geologic formation. This method is used for dating sediments from either a marine or playa lake environment. Because this method is used for the period between 100,000 years and 1,200,000 years before the present, it aids in bridging the gap between the carbon-14 dating method and the potassium-argon dating method.
Since the atmospheric pressure at Mt Everest is constant, the process will take place at constant pressure and such process at constant pressure is called Isobaric process. Hope this helps!
Answer:
False
Explanation:
The first reaction is;
NO(g) + 1/2O2(g) ---->NO2(g)
K= [NO2]/[NO] [ O2]^1/2
The second reaction is;
2NO(g) + O2(g) ---->2NO2(g)
K'= [NO2]^2/[NO]^2 [O2]
It now follows that;
K'= K^2
Hence the statement in the question is false
Answer:
+3
Explanation:
Chlorine is anion with a -1 charge. But they are three chlorine atoms.
-1 * 3 = -3
So they have a -3 charge.
So to balance the compound, the nickel has to be a cation with a +3 charge.
-3 + 3 = 0
Furthermore, a chemical bond always has a 0 charge. Remember that.
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