What volume of 6.00 M hydrochloric acid is needed to prepare 500 mL of 0.100 M solution?

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Can someone me with questions 12 and 13 plz.

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit