0.105g of a given protein, containing unknown amounts of C H and O reacts with 02 to produce 0.257g of CO2 (44.01g/mol) and 0.035g of H2O (18.02g/mol), what is the empirical formula of the protein?

please explain

I just had this on an exam and had no clue how to do it, I need help

The answer to your question is C₃H₂O₁ or C₃H₂O

Step-by-step explanation:

Data

mass of protein = 0.105 g

elements = C, H, O

mass of CO₂ = 0.257 g

molar mass of CO₂ = 44.01 g/mol

mass of water = 0.035 g

molar mass of water = 18.02 g/mol

empirical formula = ?

Process

1.- Calculate the mass and moles of carbon

                    44 g of CO₂ 12 g of C

               0.257 g of CO₂ x

                                x = (0.257 x 12)/44

                                x = 3.084/44

                                x = 0.07 g of Carbon

                     12 g of C 1 mol

                     0.07 g of C  x

                                x = (0.07 x 1) / 12

                                x = 0.0058 moles of C

2.- Calculate the mass and moles of H

                      18 g of H₂O 2 g of H

                      0.035 g of H₂O x

                              x = (0.035 x 2) / 18

                             x = 0.0039 g of H₂

                         1 g of H 1 mol of H

                         0.0039 g of H   x

                              x = 0.0039 moles of H

3.- Calculate the mass and moles of O₂

mass of O₂ = 0.105g - 0.07 - 0.0039g

                   = 0.0311 g of O₂

                          16 g of O₂ 1 mol

                          0.0311 f of O₂  x

                             x = (0.0311 x 1)/16

                             x = 0.0019 moles of O₂

4.- Divide by the lowest number of moles

Carbon = 0.0058 / 0.0019 = 3.0

Hydrogen = 0.0039 / 0.0019 = 2.0

Oxigen = 0.0019 / 0.0019 = 1

5.- Write the empirical formula

                     C₃H₂O₁ or C₃H₂O

median is the value separating the higher half of a data sample, a population or probablity distribution from the lower half.

step-by-step explanation:

say you have 3,8,7,3,1,9,8 order them from lowest to highest

if orderd it would be 1,3,3,7,8,8,9 now you take away from the lowest and the highest until you end up in the middle.

so you would remove the 1 and 9 leaving you with 5 digits remaining

when you've reached the middle that would be your answer so in this case the answer is 7

if there were two numbers left say 7 and 5 you'd and them together so 12 then divide by 2 witch would equal 6 so the answer would be 6

good luck on that project hoped i you at all