Question

What is the excess reactant and by how much? Alkasletzer 325mg aspirin 1000mg of hydrogen citrate 1916 baking soda

Answer 1

Formula 1: Find the limiting reagent by looking at the number of moles of each reactant.

Determine the balanced chemical equation for the chemical reaction.
Convert all given information into moles
Calculate the mole ratio from the given information. Compare the calculated ratio to the actual ratio.
Use the amount of limiting reactant to calculate the amount of product produced.
If necessary, calculate how much is left in excess of the non-limiting reagent.
Formula 2: Find the limiting reagent by calculating and comparing the amount of product each reactant will produce.

Balance the chemical equation for the chemical reaction.
Convert the given information into moles.
Use stoichiometry for each individual reactant to find the mass of product produced.
The reactant that produces a lesser amount of product is the limiting reagent.
The reactant that produces a higher amount of product is the excess reagent.
To find the amount of remaining excess reactant, subtract the mass of excess reagent consumed from the total mass of excess reagent given.

Answer 2

let me know what you are having troubles with, do it yourself first, and I'll correct you, if needed.

Answer 3

Balanced equation 3NaHCO3(aq)+C6H8O7(aq)--> Na3C6H5O7(aq)+3H2O(l)+3CO2(g)

Answer 4

How do you convert it to moles?

Answer 5

Well, right now you are in mg of each substance to get moles the equation is:

Moles = Grams of substance / Molar mass of substance (Based on periodic table)

so first you need to convert mg to grams, this is done like this:

100mg = 1gram

so for example the first one: 325mg / 1000mg = grams

Answer 6

your units cancel out, and you are left with grams.

Now you can use your grams to find moles.

Remember,

Moles = Grams of substance / Molar mass of substance (Periodic table (which is also grams))