1. The sedative Demerol hydrochloride has the formula \( \mathrm{C}_{15} \mathrm{H}_{22} \mathrm{CINO} \). What is the molar mass of this compound? 1 mole Demerol hydrochloride \( =283.8 \mathrm{~g} \) 1 mole Demerol hydrochloride \( =232.8 \mathrm{~g} \) 1 mole Demerol hydrochloride \( =382.8 \mathrm{~g} \) 1 mole Demerol hydrochloride \( =267.8 \mathrm{~g} \)

Homework Questions Content Question 1 Using principles of molecular orbital theory, how many unpaired electrons are in each of the following molecules? NO \( { }^{+} \)Blank 1 NO Blank 2 BC Blank 3 BeC Blank 4

Which of these scholars laid the toundations tor modern chemistry?

3. จงอ่านชื่อของสารประกอบต่อไปนั้ 3.1 Bas \( 3.2 \mathrm{Mg}\left(\mathrm{HCO}_{3}\right)_{2} \) 3.3 ZnO \( 3.4\left(\mathrm{NH}_{4}\right) \mathrm{HPO}_{4} \) \( 3.5 \mathrm{~K}_{2}\left(\mathrm{CO}_{4}\right. \)

You can also do the reverse, calculate the \( \mathrm{H}_{3} \mathrm{O}^{+} \)molarity from the pH , using the formula \( \mathrm{H}_{3} \mathrm{O}^{+} \)molarity \( =10^{-}-\mathrm{pH} \) What is the \( \mathrm{H}_{3} \mathrm{O}^{+} \)molarity of a solution having the pH of 2.56 ?

Which is the correct Lewis structure for acetylene (\(C_ { 2} H_ { 2} \))?