How much does 102.55 moles of

SiO_(2)

weigh?\

6,159g

\

4,519g

\

102.6g

\

60.06g

\ Question 17\ Which one of the following is not a molecular compound?\

MgO

\

PH_(3)

\

HCl

\

H_(2)O

\ Question 18\

50.00mL

of a

17.1MHNO_(3)

solution is diluted until the total volume of the solution is

250.00mL

. What is the concentration of the final solution?\

3.42M

\

0.342M

\

0.285M

\

85.5M

How much does 102.55 moles of SiO2 weigh? 6,159g 4,519g 102.6g 60.06g Question 17 Which one of the following is not a molecular compound? MgO PH3 HCl H2O Question 18 50.00mL of a 17.1MHNO3 solution is diluted until the total volume of the solution is 250.00mL. What is the concentration of the final solution? 3.42M 0.342M 0.285M 85.5M