Answer:
34,6g of (NH₄)₂SO₄
Explanation:
The boiling-point elevation describes the phenomenon in which the boiling point of a liquid increases with the addition of a compound. The formula is:
ΔT = kb×m
Where ΔT is Tsolution - T solvent; kb is ebullioscopic constant and m is molality of ions in solution.
For the problem:
ΔT = 109,7°C-108,3°C = 1,4°C
kb = 1.07 °C kg/mol
Solving:
m = 1,31 mol/kg
As mass of X = 600g = 0,600kg:
1,31mol/kg×0,600kg = 0,785 moles of ions. As (NH₄)₂SO₄ has three ions:
0,785 moles of ions× = 0,262 moles of (NH₄)₂SO₄
As molar mass of (NH₄)₂SO₄ is 132,14g/mol:
0,262 moles of (NH₄)₂SO₄× = <em>34,6g of (NH₄)₂SO₄</em>
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I hope it helps!
The acidic level is given by the amount of hydronium in a specific solution.
Therefore, the tert-amyl chloride would turn acidic because the quantity of hydronium will increase, which decreases the pH level.
The orbits of the plants are fixed around the sun by the suns gravitational pull
The chemical energy in food is converted to potential energy stored in the body which is then converted to mechanical and kinetic energy, as a result of motion while running then to heat energy.
<u>Explanation</u>:
- The chemical energy in nourishment is changed over to potential energy stored in the body which is then changed over to mechanical and kinetic energy, because of movement while running then to heat energy.
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The energy bar eaten by Sheila has chemical energy bolted up inside it. This chemical energy is changed over to mechanical energy in a type of potential and kinetic energy and this is changed over to heat energy as the run progresses. Along these lines, the energy changes are chemical energy to mechanical energy [kinetic and potential] and finally to heat energy.