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The mass of oxygen that is required to react completely with 2 moles of CH4 is 128 grams
calculation
mass = moles xmolar mass
The molar mass of O2= 16 x2 = 32 g/mol
find the number of moles
first write the the equation for reaction
CH4 + 2O2 → CO2 + 2H2O
the mole ratio between CH4 to O2 is 1:2 therefore the moles of O2 = 2 x2 = 4 moles
mass is therefore = 32 g/mol x 4 moles = 128 grams
Answer:
it can be increased by the number of atoms on each side
Answer:
Five molecules of oxygen.
Explanation:
Hello,
In this case, considering the given chemical reaction, we must write a five before the oxygen in order to equal the number of oxygen atoms at both the right and left side (ten) so phosphorous remain the same (4):
It means that five molecules of oxygen (O₂) are needed to form one molecule of tetraphosphorous decaoxide (P₄O₁₀).
Best regards.
Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.