- #1
lolecules
- 5
- 0
Homework Statement
"How many grams of hydrogen are necessary to react completely with 50.0g of nitrogen in the below reaction?"
Homework Equations
N2+3H3 ---> 2NH3
The Attempt at a Solution
16.1g H?
Close enough, I didn't round off like you did.lolecules said:50gN/1 1molN/28gN 3molH/1mol N 3gH/1molH
That's right.lolecules said:I guess my only question is since N2 is diatomic, then the molar mass of the nitrogen goes from 14 to 28?
Stoichiometry is the branch of chemistry that deals with the quantitative relationships between reactants and products in a chemical reaction. It involves using mathematical calculations to determine the amounts of substances involved in a chemical reaction.
Stoichiometry is important because it allows us to predict the amount of products that will be formed in a chemical reaction, based on the amounts of reactants present. This information is crucial for determining the efficiency of a reaction and for designing and optimizing chemical processes.
The key terms used in stoichiometry include reactants, products, coefficients, molar ratios, and limiting reactants. Reactants are the substances that are present at the beginning of a reaction, while products are the substances that are formed. Coefficients are the numbers that represent the relative amounts of each substance in a balanced chemical equation. Molar ratios are the ratios of the coefficients in a balanced chemical equation, and they are used to convert between different units of measurement. The limiting reactant is the substance that is completely used up in a reaction, limiting the amount of product that can be formed.
To solve a stoichiometry problem, you first need to write a balanced chemical equation for the reaction. Then, you can use the coefficients in the equation to calculate the amounts of substances involved. This is typically done using dimensional analysis, where you set up conversion factors to convert between different units of measurement. It is important to keep track of units throughout the calculation and to use the correct molar ratios to ensure an accurate answer.
Stoichiometry has many real-world applications in fields such as chemistry, biology, and environmental science. It is used to determine the amount of reactants needed to produce a certain amount of product, to calculate the efficiency of a chemical reaction, and to design and optimize chemical processes. In biology, stoichiometry is used to study metabolic pathways and determine the amounts of substrates and products involved. In environmental science, it is used to understand and predict the effects of chemical reactions on the environment, such as acid rain formation.