A compound with an empirical formula of C2H2O has a molar mass of 2168 g/mol. Wh

Question

A compound with an empirical formula of C2H2O has a molar mass of 2168 g/mol. What is the molecular formula? 7. A compound consisting only of Mn (manganese, 25th element in the periodic table) and O (oxygen) contains 63% by mass Mn. What is the empirical formula of the compound? 8. What is the % yield when the reaction of 11.2 g Fe with excess S yields 16.7 g Fe2S3? 9. Based on solubility rules, which one of these compounds is soluble in water? 10. The oxidation number of S in the thiosulfate ion S2O3^2- is 11. What mass of Na2CO3 is needed to prepare 500. mL of a solution having a sodium ion (Na^+) concentration of 0.175 M? 12. Pressure is defined as: A. joule per unit area B. force x volume C. newton x meter D. force per unit area E. volume per unit force

Explanation / Answer

my answer:

6A, 7D, 8A, 9C, 10B, 11C, 12D

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.