Answer:
5.64x10⁻³ g of S₈S₈
Explanation:
We consider mm as milimolal
Milimolal = molal . 1000
Molal are the moles of solute contained in 1kg of solvent.
Solute → Sulfur (S₈S₈)
Solvent → naphthalene
0.11 mm / 1000 = 1.1x10⁻⁴ molal
moles of solute / kg of solvent = 1.1x10⁻⁴ molal
moles of solute / 0.1 kg of solvent = 1.1x10⁻⁴ molal
moles of solute = 1.1x10⁻⁴ m/kg . 0.1kg → 1.1ₓ10⁻⁵ moles
Molar mass S₈S₈ = 512.96 g/m
1.1ₓ10⁻⁵ mol . 512.96 g/m = 5.64x10⁻³ g
Answer is: 4.45 grams of methane gas <span>need to be combusted</span>.
Balanced chemical reaction: CH₄ + 2O₂ → CO₂ + 2H₂O.
Ideal gas law: p·V =
n·R·T.<span>
p = 1.1 atm.
T = 301 K.
V(H</span>₂O) <span>= 12.5 L.
R = 0,08206 L·atm/mol·K.
</span>n(H₂O) = <span>1.1 atm ·
12.5 L ÷ 0,08206 L·atm/mol·K · 301 K.
</span>n(H₂O) = 0.556 mol.
From chemical reaction: n(H₂O) : n(CH₄) = 2 : 1.
n(CH₄) = 0.556 mol ÷ 2 = 0.278 mol.
m(CH₄) = 0.278 mol · 16 g/mol.
m(CH₄) = 4.448 g.
For me to explain this clearly, you will need to refer to a heating curve graph in google.
If you refer to the graph, when a temperature is constant, the average kinetic energy also remains constant.
But when the temperature rises, the average kinetic energy also increases.
This is because when temperature increases, the particles are getting further from each other which when they are moving further, their kinetic energy increases. Thus, whenever there is an increase or decrease in temperature, it in turns increases or decreases average kinetic energy.
Answer:
1. For the first reaction, there is Carbonation and rearrangement
2. For the second reaction, No Carbonation, No rearrangement.
Explanation:
See attached screenshot below
Answer:
Explanation:
Alkaline are great for long-term use in a device, such as in a digital camera or game console remote. Carbon zinc batteries are ideal in a situation where one needs to power multiple devices for one occasion, such as when buying many toys during the Christmas season to be used for a few days.
