Combustion equation of Methane:
CH₄ + 2 O₂ → CO₂ + 2 H₂O
So from the equation we can see that methane gas (CH₄) burned in air to give carbon dioxide and water
The provided choices are 1. CO₂ 2. H₂ 3. H₂O
So from the choices the correct answer will be 1 and 3 only
Answer:
pH is 2.58
Explanation:
The pH of the buffer made from the mixture of phosphoric acid (H₃PO₄) and its conjugate base form (H₂PO₄⁻) follows the Henderson-Hasselbalch equation:
pH = pka + log [H₂PO₄⁻] /[H₃PO₄]
If 75% of the buffer is in the conjugate base form (H₂PO₄⁻), 25% will be as H₃PO₄. Replacing to find pH:
pH = 2.1 + log [75%] /[25%]
pH = 2.58
<em>pH is 2.58</em>
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Calculate the mole of glucose and water
The moles of water =158g/18g/mol=8.778 moles
moles of glucose =52.8g/180g/mol=0.293 moles
determine the mole fraction of the solvent
that is x solvent = 8.778/ (8.778+0.293)=0.9677
use the Raults law to determine the vapor pressure
100 degree of water has a vapor pressure of 760 mmhg
p solution=(x solvent) (p^o solvent)
p solution=0.9677 x760 =735.45 mmHg
Answer:
Because the hot air from the equator is balance with the cold air from the polar region, meaning the temperature is the right degree, therefore it causes the slowing down of that hurricane.
Explanation:
From your science class you do study the convectional current right? that's what happen on the outside real life
For the first task, lighting a campfire can be used. Quantities of firestarter and kindling do not need to be precise. For the second task, the process of titration can be used. In a titration, the precise amount of a substance may be determined by adding a precise amount of a reactive species
