0.168 × 10²³ silver atoms
Explanation:
First we need to calculate the number of moles of silver:
number of moles = mass / molecular weight
number of moles of silver = 3.01 / 108 = 0.0279 moles
Now we use the Avogadro's number to find the number of atoms:
if in 1 mole of silver are 6.022 × 10²³ silver atoms
then in 0.0279 moles of silver are X silver atoms
X = (0.0279 × 6.022 × 10²³) / 1 = 0.168 × 10²³ silver atoms
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Avogadro's number
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your answer should be geothermal power
Answer:
had asked
Explanation:
If they had asked me a question, I would have answered it.
Answer: The reaction is endothermic.
Explanation:
Endothermic reaction : It is a type of chemical reaction where the energy is absorbed from the surrounding. In the endothermic reaction, the reactant have less energy than the energy of products
In endothermic reaction, enthalpy terms is located on the reactant side.
Example:
Exothermic reaction : It is a type of chemical reaction where the energy is released into the surrounding. In the exothermic reaction, the energy of reactants are more than the energy of products
In exothermic reaction, enthalpy terms is located on the product side.
Example:
Answer:
79'420J
Explanation:
We know mass 250g and
∆T=98°C -22°C
=76°C
The specific heat capacity for water is 4,18Zj/g°C
THEREFORE
∆H=250g•14,8j/g°C •76°C
=79'420J