Multiple Choice
Calculate the molar mass of Ca3(PO4) 2.
A) 87.05 g/mol
B) 215.21 g/mol
C) 310.18 g/mol
D) 279.21 g/mol
E) 246.18 g/mol
Correct Answer:

Verified
Correct Answer:
Verified
Q84: What is the mass of 9.86 ×
Q85: How many molecules of N<sub>2</sub>O<sub>4</sub> are in
Q86: How many moles of C<sub>5</sub>H<sub>8</sub> contain 4.95
Q87: Write the formula for magnesium nitride.<br>A) Mg<sub>3</sub>N<sub>2</sub><br>B)
Q88: Which of the following is an atomic
Q90: Calculate the molar mass of H<sub>2</sub>CO<sub>3</sub>.<br>A) 62.03
Q91: Identify the compound used in welding torches.<br>A)
Q92: Which of the following compounds is vinegar?<br>A)
Q93: Identify an ether.<br>A) CH<sub>3</sub>CH<sub>2</sub>OCH<sub>2</sub>CH<sub>3</sub><br>B) CH<sub>3</sub>CH<sub>2</sub>Br<br>C) CH<sub>3</sub>CH<sub>2</sub>PH<sub>2</sub><br>D) CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>3</sub><br>E)
Q94: Which one of the following is NOT