naiomireyes74p2aybs
21.05.2021 •
Chemistry
A student conducted a titration to determine the concentration of a mystery bottle of sulfuric acid (H2SO4) found in the lab with no label. The balanced equation for the reaction is below:
2 NaOH + H2SO4 → Na2SO4 + 2 H2O
a) If 400.0 mL of 1.7 M NaOH was used in the reaction, how many moles of H2SO4 were used in the reaction?
b) If there were 100.0 mL of the H2SO4 solution at the beginning of the reaction, what was the molarity of the H2SO4 solution?
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Ответ:
i think it is rotation on axis
Explanation: It is the rotation of Earth that makes them seem to appear to be moving across the sky. As Earth rotates, causing night and day, it also takes a long journey around the sun. This yearly journey is called a revolution. This revolution takes 365 days, or one year.