0.01375 moles of nitric acid (HNO₃) which is the limiting reactant
Explanation:
We have the following chemical reaction:
NaOH + HNO₃ → NaNO₃ + H₂O
Now to determine the number of moles of each reactant we use the following formula:
molar concentration = number of moles / volume (L)
number of moles = molar concentration × volume (L)
number of moles of NaOH = 0.5 × 0.250 = 0.125 moles
number of moles of HNO₃ = 0.55 × 0.025 = 0.01375 moles
From the chemical reaction we see that 1 mole of NaOH reacts with 1 mole of HNO₃, so 0.125 moles of NaOH will react with 0.125 moles of HNO₃ but we only have 0.01375 moles of HNO₃ available, so the limiting reactant is HNO₃.
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Answer:
7.99 mol
Explanation:
Step 1: Given data
Molecules of chlorine gas: 4.81 × 10²⁴ molecules
Step 2: Calculate how many moles of chlorine gas corresponds to 4.81 × 10²⁴ molecules of chlorine gas
In order to convert molecules to moles, we will use Avogadro's number: there are 6.02 × 10²³ molecules of chlorine gas in 1 mole of molecules of chlorine gas.
4.81 × 10²⁴ molecules × (1 mol/6.02 × 10²³ molecules) = 7.99 mol
Answer:
Fractional distillation
Explanation:
Heat the mixture upto 700°C
The compuond with low boiling point will evaporate first and the compound with higher boiling point will evaporate last.
Answer:
D. chemical alters the atomic structure of a substance, while physical does not
hope this helps!
