Food Element Molar Mass | C, Chocolate Rectangle 3.30 g/mol | G, Graham Cracker Square 7.00 g/mol | M, Marshmallow 7.10 g/mol |
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What is the unit mass of a graham cracker?
Substance Symbol Unit mass | Graham Cracker Squares Gr 8.50 g | Marshmallow Mm 7.125 g | Miniature Chocolate Bar Ch 12.00 g |
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How many units of graham crackers and chocolate pieces are needed to make the maximum number of S mores with the number of marshmallows calculated above?
For
every 2 units of graham crackers
, one marshmallow and 3 chocolate pieces we can make one S’more. The coefficients tell you the particle and mole ratio. 3.
What type of reaction is smores?
Chemistry is a large part of making S’mores and involves a number of physical and chemical changes. Breaking graham crackers or a Hershey’s bar in pieces is a physical change. However, heating a marshmallow over a flame is a chemical reaction and also
an endothermic reaction
.
What is the limiting reactant in S mores?
If you built the s’mores, physically or in your head, you realized that we can actually only make 4 s’mores. This is because we only have 12 chocolate pieces, and we need to put 3 chocolate pieces in each s’more. In other words,
the chocolate pieces
are the limiting reactant.
How much does a Smore weigh in grams?
The 6 pack weighs
40 grams
, 8 pack weighs 55 grams and the 12 pack weighs 80 grams.
How do smores relate to stoichiometry?
Stoichiometry predicts the amount of product produced
If we have 12 graham crackers
, that’s enough to make 6 s’mores. It doesn’t matter how much extra chocolate we have, because without the graham crackers, it isn’t a s’more.
How many S mores can you make with a box of graham crackers?
For every 2 units of graham crackers
, one marshmallow and 3 chocolate pieces we can make one S’more. Also Know, how many Hershey bars do you need for S mores? Two pieces of chocolate for one s’more. I generally prefer the Hershey’s 5lb chocolate bar for my s’more needs.
How do you know what the limiting reactant is?
- Determine the balanced chemical equation for the chemical reaction.
- Convert all given information into moles (most likely, through the use of molar mass as a conversion factor).
- Calculate the mole ratio from the given information.
What does a balanced equation tell you?
A balanced equation models a chemical reaction using the formulae of the reactants and products . It
shows the number of units of each substance involved
.
What are the black bits on a burnt marshmallow?
These large molecules are essential to all living things. Heat from a campfire causes the sugar and proteins in a marshmallow to chemically react and form new substances—the
brown crust
you see on the outside of a toasted marshmallow.
Is breaking a graham cracker a physical change?
When you break the graham cracker to make them the perfect size,
they go through a physical change
. When you roast the marshmallow, it goes through a chemical change. When you put the roasted marshmallow onto the chocolate, it slowly melts by going through a physical change.
Is breaking a cracker a chemical change?
The first is physical weathering, as your teeth break the cracker into smaller pieces. The second is a
chemical change
, as the saliva in your mouth mixes with the cracker pieces and begins to digest them.
What is the mass of a Smore?
Food Element Molar Mass | C, Chocolate Rectangle 3.30 g/mol | G, Graham Cracker Square 7.00 g/mol | M, Marshmallow 7.10 g/mol |
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What is the theoretical yield of S mores?
6. A reactant that is left over is said to be in excess and those that are used up and limit the amount of product that can be made are called limiting reactants.
The maximum number of S’mores
you could make is called the theoretical yield.
What is the limiting reactant in the reactions of copper experiment?
Since
Na2CO3
is limiting reactant it limits the amount of the product, CaCO3 that will be formed. In this experiment stoichiometric principles will be used to obtain the appropriate equation between the reaction of iron metal and copper (II) sulfate solution.