Question

PLEASE HELP I DO NOT UNDERSTAND ANY OF THIS

Mass (g)
crucible + lid 31.064
crucible + lid + Mg ribbon 31.634
crucible + lid + final solids 31.970

Calculations:

1. Calculate the mass of magnesium that was added to the crucible.
2. Calculate the number of moles of magnesium that were added to the crucible.
3. Calculate the mass of oxygen that was added to the crucible using the mass of the solid MgO product.
4. Calculate the number of moles of O atoms that were added to the crucible.
5. Using your answers to questions 2 and 4, write the empirical formula for MgxOy. (i.e. determine the values of x and y in the empirical formula). Reduce the ratio of x:y to whole numbers.
6. Based on the charge of the magnesium and oxygen ions, did you measure the expected ratio of magnesium to oxygen ions in magnesium oxide?

Answer 1

1.31.634-31.064=570g

2. mass in grams /RAM=570g/24=23.8 moles

3. 31.970-31.634=336g

4. no. of moles=mass in grams /RAM=336g/16*2=10.5 moles

5.Mg1O1

Step-by-step explanation: