The given example is a chemical reaction.
The contents (separated as reactants and products) :
The written reaction is :
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If 747 joules of energy is added to a sample of aluminum (specific heat capacity = 0.899 J/g*C) and the temperature goes up from
1 answer:
Answer:
m = 51.93 grams
Explanation:
Given that,
Energy added, Q = 747 joules
The specific heat capacity of Aluminium, c = 0.899 J/g°C
The temperature goes from 105.0°C to 121.0°C.
Let the mass of the aluminum sample is m. We know that, the heat added to the system is given by :
So, the mass of the sample is 51.93 grams.
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The number of C atoms in 0.524 moles of C is 3.15 atoms.
The number of molecules in 9.87 moles
is 59.43 molecules.
The moles of Fe in 1.40 x atoms of Fe is 0.23 x
The moles of in 2.30x
molecules of
is 3.81.
A mole is defined as 6.02214076 × of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.
A. The number of C atoms in 0.524 mole of C:
6.02214076 × x 0.524 mole
3.155601758 atoms =3.155 atoms
B. The number of molecules in 9.87 moles of
:
6.02214076 × x 9.87
59.4385293 molecules= 59.43 molecules
C. The moles of Fe in 1.40 x atoms of Fe:
1.40 x ÷ 6.02214076 ×
0.2324754694 x moles.
0.23 x moles.
D. The moles of in 2.30x
molecules of
:
2.30x ÷ 6.02214076 ×
3.819239854 moles=3.81 moles
Learn more about moles here:
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