1. What is molarity of products? I can't decide if it's a. The concentration of the reactants measured in mol/L of solution or b. The concentration of the products measured in mol/L of solution
4. How does pressure relate to reaction rates? I'm stuck between a. Pressure is only important for gases or b. higher pressure in general reduces reaction rates. I think it might be B?
6. Reaction rate decreases as pressure increases. True?
1. The molarity of products refers to the concentration of the products in a chemical reaction, measured in mol/L (moles per liter) of solution.
To determine the molarity of products, you need to consider the balanced chemical equation for the reaction and the stoichiometry of the reaction. The stoichiometry tells you the ratio of reactants to products, which allows you to determine the number of moles of products produced from a certain number of moles of reactants.
To calculate the molarity of products, you first need to know the volume of the solution in which the reaction is taking place. Then, you divide the number of moles of products by the volume of the solution in liters to get the molarity.
4. The relationship between pressure and reaction rates depends on the reaction itself. In general, for chemical reactions involving gases, increasing the pressure can increase the reaction rate.
For reactions where gases are involved, increasing the pressure will cause the molecules to be more closely packed together, resulting in higher collision frequency and a higher likelihood of successful collisions. This leads to an increase in reaction rate.
However, it is important to note that not all reactions are affected by pressure. Reactions that involve only solids or liquids are typically unaffected by changes in pressure.
6. The statement "reaction rate decreases as pressure increases" is generally incorrect.
As mentioned earlier, for reactions involving gases, increasing the pressure generally leads to an increase in the reaction rate due to a higher collision frequency.
However, it's worth noting that there can be exceptions. For certain reactions, an increase in pressure may lead to a decrease in reaction rate if the reaction rate is dependent on the concentration or partial pressure of a reactant. This would occur in cases where the increase in pressure causes a decrease in the concentration of a reactant. But in general, this is not the case.
It's important to consider the specific reaction and the factors that influence it when talking about the relationship between pressure and reaction rate.