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ehidna [41]
3 years ago
8

A neutralization reaction was performed using NaOH (volume - 250 ml., concentration - 0.500 M) and nitric acid (volume - 25.0 ml

., concentration - 0.550 M),
Calculate the moles of the limiting reactant.
NaOH + HNO, - NaNO, +H2O
Give your answer to three significant figures.
mol
Chemistry
1 answer:
IgorLugansk [536]3 years ago
6 0

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.

Learn more about:

limiting reactant

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spayn [35]

Answer:

The mass ratio of oxygen rounded to the nearest whole no. 3 : 2

Explanation:

According to Law of Multiple proportion when two elements combine to make two or more different compounds, the mass ratio of the two element in the first compound, when divided by the mass ratio of the second compound , form a simple whole number ratio.

Compound A contains 1.34 g of sulfur for every 0.86 g of oxygen

        \frac{1.34}{0.86}= 1.5

Compound B contains 11.63 g of sulfur for every 10.49 g of oxygen

      \frac{11.643}{10.49}= 1.0

Ratio of oxygen in each compound

   always put the larger number over the smaller number.

\frac{CompoundA}{Compound B}=\frac{1.5}{1.0}=\frac{3}{2}

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What mass of ammonia can be produced if 13.4 grams of nitrogen gas reacted ?
aivan3 [116]

Answer:

If 13.4 grams of nitrogen gas reacts we'll produce 16.3 grams of ammonia

Explanation:

Step 1: Data given

Mass of nitrogen gas (N2) = 13.4 grams

Molar mass of N2 = 28 g/mol

Molar mass of NH3 = 17.03 g/mol

Step 2: The balanced equation

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Step 3: Calculate moles of N2

Moles N2 = Mass N2 / molar mass N2

Moles N2 = 13.4 grams / 28.00 g/mol

Moles N2 = 0.479 moles

Step 4: Calculate moles of NH3

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For 0.479 moles N2 we'll produce 2*0.479 = 0.958 moles

Step 5: Calculate mass of NH3

Mass of NH3 = moles NH3 * molar mass NH3

Mass NH3 = 0.958 moles * 17.03 g/mol

Mass NH3 = 16.3 grams

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