I think it’s B not rlly sure
To calculate the molar mass of substance, divide the number of moles by the given mass of substance.
The quantity of a substance is known as a mole. You can measure it in terms of grams, liters, atoms, molecules, or particles.
Use the substance's molar mass to convert between grams and moles. Divide the given mass by the number of moles to convert from moles to molar mass.
Using the formula, Number of moles = Given mass/ molar mass
The molar mass of a substance can be calculated as-
Molar mass = Given mass/number of moles
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Hi! I hope this helps, here’s the answer.
<span>2NH3 + 3/2O2 --> N2 +
3H2O </span><span>
<span>NH3 + 3/4O2 --> 1/2N2 + 3/2H2O </span></span>
<span>Here, the sign of deltaS^0 is one molecule (^0) thus, the
coefficient of NH3 should be ONE.</span>
The coefficient of Fe is 2, Cl is 2, and product would be 2 as well.
Answer is 2.
2H2+O2→2H2O
We have to be aware that the number of atoms are the same on both reactant side and product side.