Unit Overview:
For students to learn the process and understand stoichiometry. They will understand how mole ratio relates to chemical equations. The students will be able to balance a chemical equation and then use the balanced equations to find amounts of certain chemical compounds.
Stoichiometry
Personal Achievement:
I’m proud of achieving on being able to balance a chemical equation in this unit. Because when I first learned about this, I was still making mistake with balancing an equation. But after a few practices, I archive my new skills on balancing chemical equations.
Enduring Understanding:
Chemical formula is a equation in chemistry that tells us the number of atoms of each element in a compound. It contains the symbols of the atoms of the elements and the amount of how element in a form of subscripts. However, the equation in chemical formulas must be balanced which mean there are same amount of atoms for each element. Therefore, the mole ratio should be balanced as well. Mole ratio is the ratio of moles of one substance to the moles of another substance in a balanced equation. To determine the mole ratio between two substances all you need to do is look at balanced equation for the coefficients in front of the substances, so we can convert them into other units. Other than moles, there’s another one important thing in chemical equation which is mass percent. It is a composition of a molecule that shows the amount of each element and calculate it to find the total molecular mass (as in percentage value).
Weakness:
I think I still need improvements on Demonstrates the understanding of stoichiometry since I don’t really understand much on percent mass and mole ratios. I can improve this by reading more about percent mass and ratios.
Strengths:
I think I did well on Applying the law of conservation of mass when balancing a chemical equation because I got an 100% on my quiz. When converting units to moles, you will have to use the table to calculate it.
S’more lab-We calculated how many marshmallows, chocolate, and crackers we should use to make one s'more.This lab relates to Stoichiometry because we need to know how much ingredients we should use to make one s'more. The ingredients represent the reactants and s'more represent product. Overall, we need to balance the s',more equation with the reactant to make an specific amount of s'mores.
