A scientist has a "mystery element" that she wants to identify by using its properties. These properties include its freezing point. She collected data about the element's freezing point (horizontal line) and displayed it on the graph below. Use the graph above to determine the freezing point of the element (horizontal line). Which of these elements is the "mystery element"? The freezing point of each element is listed by its name. Question 4 options: iron (1539°C 1539 ° C ) nickel (1455°C 1455 ° C ) cobalt (1495°C 1495 ° C ) silicon (1430°C 1430 ° C )

Gusing the milligrams of ascorbic acid you entered above, the ratio of total sample volume to aliquot volume, and the total milligrams of the vitamin c tablet that you dissolved, calculate the mass of ascorbic acid in the vitamin c tablet for each trial. do this by scaling up to find the amount (mg) of ascorbic acid in your 250 ml flask. enter your calculated mass of ascorbic acid in the vitamin c tablet, for each trial. be sure to enter your calculated mass in the corresponding order that you entered your milligrams of ascorbic acid. the milligrams of ascorbic acid you entered for entry #1 previously should correspond to the mass of ascorbic acid that you enter for entry #1 here.