Answer:
100L of N2
Explanation:
First let us obtain the number of mole of NH3 that occupied 200L at stp. This can be achieved by doing the following:
1mole of NH3 occupied 22.4L at stp.
Therefore, Xmol mole of NH3 will occupy 200L i.e
Xmol of NH3 = 200/22.4 = 8.93moles.
Now let us generate a balanced equation for the reaction.
N2 + 3H2 —> 2NH3
From the equation above,
1mole of N2 produced 2moles of NH3.
Therefore, Xmol of N2 will produce 8.93moles of NH3 i.e
Xmol of N2 = 8.93/2 = 4.47moles
Now let us convert 4.47moles to N2 to Litres. This is illustrated below:
1mole of N2 occupied 22.4L at stp
Therefore, 4.47moles of N2 will occupy = 4.47 x 22.4 = 100L
Therefore, 100L of N2 is used in the reaction
AnswerThe correct (A).
Explanation:
The true statement about the redox reaction is In a redox reaction, an electron is lost by the oxidizing agent.
<span>(6.36x10^25)/(6.02*10^23) is approximately 105.6 moles</span>
Answer:
10 atm
Explanation:
There's a lot to do here, but lets take it one step at a time. First, let's write a balanced equation for the decomposition of potassium chlorate into potassium chloride and oxgyen gas.
2 KClO3 → 2 KCl + 3 O2
Now let's find the moles of the KClO3 (molar mass 122.55 g/mol) that we have take 10 g/122.55 g/mol, grams will cancel and we are left with 0.0816 moles. lets divide that by two since we have a two in front of the KClO3 in the equation, and then multiply that number by 5 since it's the total moles of products, in summary, multiply by 5/2 to get 0.204 moles.
Now that we know the moles of our products, let's plug some stuff into the ideal gas law PV = nRT. We are looking for P so let's solve for that. P = (nRT)/V, now let's plug in our values. Make sure V is converted to liters so 0.5 L. And convert celcius to kelvin by adding 273
P = ((0.204 moles)(318 K)(0.08206 L atm mol^-1 K^-1))/0.5 L
A lot of units cancel, and we get about 10.65 atm, if you don't want the answer in atm, you can find a conversion equation. But let's round to sig figs for now, which will bring us to 10 atm.
Explanation:
To find the amount of product that would be formed from two or more reactants, we need to follow the following steps;
- Find the number of moles of the given reactants.
- Then proceed to determine the limiting reactant. The limiting reactant is the one in short supply which determines the extent of the reaction.
- Use the number of moles of the limiting reactant to find the number of moles of the product.
- Then use this number of moles to find the mass of the product
Useful expression:
Mass = number of moles x molar mass
