Answer:
molecular eq.
Cs2SO4 (aq) + BaBr2(aq) → BaSO4(s) + 2CsBr(aq)
ionic eq.
SO₄²-(aq) + Ba^+2 (aq) → BaSO4 (s)
explanation
separate the ions
Cs₂^+1(aq) + SO₄^+2(aq) + Ba^+2(aq) + Br₂^-1(aq) → BaSO₄(s) + 2Cs(aq) + Br(aq)
than simplify it
SO₄²-(aq) + Ba^+2 (aq) → BaSO4 (s)
Answer:
165.52 g/mol
Explanation:
Upon temperature was raised to 100 C part of the initial mass of liquid is gas, exactly: 2.00-0.581 = 1.419 g. This gas occupy a volume of approximately 265 mL, its pressure of 752 mm Hg and its temperature is 100 C. Assuming that this gas behaves as gas ideal we can estimate the molecular weight taking into account tha gas ideal law:
with R= 0.082 atm L/(mol K)
or
Before using of the formula, we need convert volume units to L (1L=1000 mL) pressure to atm (1 atm=760 mmHg) and temperature to K (K=273+C).
Finally, replacing in the formula
g/mol
Answer:
C) It depends on the relative molecular masses of X, Y and Z.
Explanation:
Dalton´s law for the partial pressure of an ideal gas in a mixture is given by the relationship :
Pa = Xa Ptotal,
where Xa is the mole fraction of gas A times the total pressure ( Pa + Pb + Pc...)
The mole fraction is, in turn, given by
Xa = mol A / total # moles
Since the moles of a substance is the mass divided by its molecular weight , it follows that answer C) is the correct one.
Answer:
Earth's energy budget describes the balance between the radiant energy that reaches Earth from the sun and the energy that flows from Earth back out to space
Explanation:
i hope it helps you
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