Read the given equation.
2 answers:
Answer: b. 12.9 grams
Explanation:
According to avogadro's law, 1 mole of every gas occupies 22.4 Liters at STP ,contains avogadro's number of particles and weighs equal to the molecular mass.
Thus at STP :
1 mole of hydrogen is produced by 2 moles of sodium metal
i.e. 22.4 L of is produced by 46 gram of sodium metal
6.3 L of is produced by=
of sodium metal
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Answer:
Q = 1455.12 Joules.
Explanation:
Given the following data;
Mass = 300 grams
Initial temperature = 22.3
Final temperature = 59.9°C
Specific heat capacity = 0.129 J/gºC.
To find the quantity of energy;
Where,
Q represents the heat capacity.
m represents the mass of an object.
c represents the specific heat capacity of water.
dt represents the change in temperature.
dt represents the change in temperature.
dt = T2 - T1
dt = 59.9 - 22.3
dt = 37.6°C
Substituting the values into the equation, we have;
Q = 1455.12 Joules.