The number of particles that are in 12.7 moles of compound that Jessica had is 7.65 x10^24 particles of compound ( answer E)
<u><em>Calculation</em></u>
<u><em> </em></u>The number of particles are calculated using the Avogadro's Principle constant.
- that is according to Avogadro's 1 moles = 6.02 x10^23 particles
what about 12.7 moles of compound= ? particles\
by use of cross multiplication
- number of particles of compound= [12.7 moles x (6.02 x 10^23)] / 1 mole = 7.65 x 10^24 particles of compound ( answer E)
N.b moles and moles cancels each other
Use the ICE table approach as solution:
PbSO₄ --> Pb²⁺ + SO₄²⁻
I - 0 0
C - +s +s
E - s s
Ksp = [Pb²⁺][SO₄²⁻]
1.82×10⁻⁸ = s²
Solving for s,
s = <em>1.35×10⁻⁴ M</em>
Answer:
Intermolecular forces (IMFs) can be used to predict relative boiling points. The stronger the IMFs, the lower the vapor pressure of the substance and the higher the boiling point. Therefore, we can compare the relative strengths of the IMFs of the compounds to predict their relative boiling points.
Explanation:
The mass in kilograms of E85 with density of 0.758 g/mL that can be contained in a 13.0 gallon tank is 2,869.34g.
<h3>How to calculate mass?</h3>
The mass of a substance can be calculated using the following formula:
Density = mass ÷ volume
According to this question, a substance E85 has a density of 0.758g/mlL and it contains 13.0gallon of liquid. The mass can be calculated as follows:
13 gallon can be converted to 3785.412 millilitres
mass = 0.758 × 3785.412
mass = 2,869.34g
Therefore, the mass in kilograms of E85 with density of 0.758 g/mL that can be contained in a 13.0 gallon tank is 2,869.34g.
Learn more about mass at: brainly.com/question/19694949
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