What is the relative formula mass of butane?
1 answer:
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Answer : The mass of sodium carbonate added to neutralize must be,
Explanation :
First we have to calculate the moles of .
Given:
Molar mass of = 98 g/mole
Mass of =
Conversion used : (1 kg = 1000 g)
Now put all the given values in the above expression, we get:
The moles of is,
Now we have to calculate the moles of
The balanced neutralization reaction is:
From the balanced chemical reaction we conclude that,
As, 1 mole of neutralizes 1 mole of
So, of
neutralizes
Now we have to calculate the mass of
Molar mass of = 106 g/mole
Thus, the mass of sodium carbonate added to neutralize must be,
Answer:
17.3 g
Explanation:
<u>Given the following data;</u>
- Quantity of heat, Q = 0.507 J
- Temperature = 0.007°C
- Specific heat capacity of water = 4.2 J/g°C
Mathematically, Heat capacity is given by the formula;
Where;
- Q represents the heat capacity or quantity of heat.
- M represents the mass of an object.
- C represents the specific heat capacity of water.
- T represents the temperature.
Making "M" the subject of formula, we have;
Substituting the values into the formula, we have;
<em>Mass, m = 17.3 grams</em>