Question 18 A student must prepare 7.00 L of 0.100 M Na2CO3 (106 g/mol). Which is the best procedure for preparing this solution? Measure 74.2 g Na2CO3 and add 7.00 kg of H2O. O Measure 10.6 g Na2CO3 and add 7.00 kg of H2O. Measure 74.2 g Na2CO3 and add H2O until the final homogeneous solution has a volume of 7.00 L O Measure 10.6 g Na2CO3 and add H2O until the final homogeneous solution has a volume of 7.00 L. Measure 74.2 g Na2CO3 and add 7.00 L of H2O. 1 pts