Question 2 options: A 1.125-gram piece of magnesium was burned in the presence of oxygen, forming 1.866-grams of the binary oxide compound.  What mass of oxygen is present in the compound?  Please report your answer WITHOUT units.

In a combustion reaction, 38.2 g of hydrocarbon reacts with 96.0 g of oxygen to produce water and carbon dioxide. If 53.8 g of water is produced, how much carbon dioxide is produced?

A compound composed of tin (Sn) and oxygen (O) weighs 8.42 g. Decomposition of the compound produced 6.63 g tin. What is the mass percent of oxygen in the compound?

An unknown compound has the following chemical formula: where x stands for a whole number. Measurements also show that a certain sample of the unknown compound contains 2.7 mol of sulfur and 1.79 mol of phosphorus. Write the complete chemical formula for the unknown compound. O

In a combustion reaction, 32.4 g of hydrocarbon reacts with 96.0 g of oxygen to produce water and carbon dioxide. If 60.6 g of water is produced, how much carbon dioxide is produced? Mass =

A 68 g sample of a compound used as a dry cleaning fluid is found to contain 10.80 g carbon, 1.36 g hydrogen and 47.84 g chlorine.  What is the subscript of hydrogen in the empirical formula for the compound?

A2.87g sample of carbon reacts with hydrogen to form 3.41g of car fuel.What is the empirical formula of the car fuel.

v Question Completion Status: QUESTION 8 *Show all vour work on a separate sheet of paper for the following problem. Full credit is based upon the correct setup as show as well as the correct answer. You can earn partial credit for this problem. What is the molecular formula of estrogen, which has a molar mass of 272.38 g/mol and an empirical formula of CgH120? (enter the answer as done in the question above) PERIODIC TABLE OF THE ELEMENTS IA 13 14 15 III A IVA VA 7. 2 16 1.0079 IIA VIA 4 6. Li Be C 6.941 9.0122 10.811 12.011 14.007 15.999 8. 9. 10 11 12 13 14 15 16 VIII B 5 6 VI B 12 II B 3. 3 4 11 Al Si Mg 24.305 Na 22.990 III B IV B VB VIIB IB 26.982 28.086 30.974 32.0 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 3- 4 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As 39.098 40.078 44.956 47 867 50.942 $1.996 54.938 55.845 S8 933 SK.693 63.546 65.39 69.723 72.61 74,922 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 Save and Submit to save and submit. Click Save All Answers to save all…

4. A sample of acetic acid has 4.22x1024 molecules. How many grams of hydrogen are present?

1) The question screenshot has been attached down below answer question 1 a,b step-by-step.