As shown in the equation the molar ratio of H2 to H20 is 1:1, therefore if 8 moles of H2 are used, 8 moles of H2O are produced. However the molar ratio of H2 to O2 is 2:1 therefore the number of moles of O2 required is 8/2 = 4.
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Explanation:
Inspite of having similar intermolecular forces, CS2 has a higher boiling point than CO2, since it has a greater molar mass. The potential energy of molecules reduces until a certain level as they get closer to each other. Although the polarity of both CO2 and CS2 are cancelled because of their linear structure.
Answer:
the answer is 2040
Explanation:
force is given as the product of mass and acceleration
Answer:
0.0451 moles ≅ 0.04 moles
Explanation:
We can calculate how many moles of calcium chloride (CaCl₂) are in 5.00 g sample, by dividing the mass into the molar mass (MM) of the compound:
moles = mass/MM
First, we calculate MM of CaCl₂ from the chemical formula, using the molar mass of the elements Ca and Cl:
MM CaCl₂ = (1 x MMCa) + (2 x MMCl) = 40 g/mol + ( 2 x 35.453 g/mol)
= 110.9 g/mol
Finally, we calculate the moles from the mass and MM:
moles of CaCl₂ = mass/(MM CaCl₂) = 5.00 g/(110.9 g/mol) = 0.0451 moles ≅ 0.04 moles