Answer is: <span>b.20.0 L </span><span>liters of ammonia are needed to react completely.
</span>V(NO) = 30 L.
n(NO) = V(NO) ÷ Vm.
n(NO) = 30 L ÷ 22,4 L/mol.
n(NO) = 1,34 mol.
From chemical reaction: n(NO) : n(NH₃) = 6 : 4 (3 : 2).
n(NH₃) = 4 · 1,34 mol ÷ 6.
n(NH₃) = 0,892 mol.
V(NH₃) = 0,892 mol · 22,4 L/mol.
V(NH₃) = 20 L.
Answer:
alkalyene ch2+2n+h wbqlzl
The most appropriate answer is 'acetic acid contains a significant amount of carbon, but sodium hydroxide contains no carbon'. Organic compounds are those compounds that contains carbon atoms usually bonded to other elements such as oxygen, nitrogen and hydrogen. Organic compounds contain covalent single, double or even triple bonds.
Answer:
B) sand
Explanation:
A) Oil is a wrong choice because it is a liquid not a solid and also if it is oil, it will float over the water surface as a droplets.
B) Sand is the right choice, because sand is a solid and it does not dissolve in water and stabilizes at the bottom.
C) Sugar is a wrong choice, because small amount of sugar will dissolve in water and be a homogeneous solution and does not appear as a particles.
D) Wood ships is also a wrong choice, even it is a solid and does not dissolve in water, but it will float over the water surface.
The reaction is:
2 NO₂ (g) + F₂ (g) ⇆ 2 NO₂F (g)
The stoichiometric coefficients of the substances balance out each other to obey the Law of Definite Proportions. Now, you have to note that determining the reaction rate expression is specific to a certain type of reaction. So, this are determined empirically through doing experiments. Sometimes in chemical reaction engineering, to make things simple, you assume that the reaction is elementary. This means that the order of a reaction with respect to a certain substance follows their individual stoichiometric coefficients. Bu there is no need for that assumption. It is already stated that the rate order is 1 with respect to F₂ and 2 if we talk about the overall order. You can determine the overall order if you add all the exponents in the expression. For this reaction, the reaction rate can be written as
Reaction rate of disappearance of reactants = Reaction rate of formation of products.
Therefore, we can have two reaction rate expressions for this. But since the problem specifies F₂, we focus on the reactants side. The expression would be
-r = k[NO₂][F₂]
The negative sign before r signifies the rate of disappearance. If it were in terms of the product, that would have been positive. The term k denotes for the reaction rate constant. That is also empirical. Now, the exponents of the reactants represent their rate order. Since F₂ is specified that order is 1, the exponent is also 1. Because the overall rate order is 2, then that means that the exponent of NO₂ is also 1.