(c) If the student mixed 10 mL of distilled water with 10 mL of the sample, would this diluted solution have anabsorbance greater than, less than or equal to the absorbance of the original solution? Justify your answer.

The diluted solution have an absorbance less than the original solution

Explanation:

As you can see in the graph, the absorbance of a substance is directly proportional to the concentration of the substance (Lambert-Beer law). That means a solution more concentrated than another will have an absorbannce greater than the more diluted solution.

In the problem, you are diluting the original sample by the addition of 10mL of distilled water, that means,

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.