Since the water is gaining heat from its surroundings, the reaction is endothermic
GC chromatograms often already have a library of compounds to determine what the substance is. In case the compound cannot be found in the library, one common alternative scientists use when performing is spiking.
Spiking involves gradually increasing the concentration of one specific compound, and looking for a rise in peak height. Here, you can identify which peak corresponds to the compound you spiked. You can do this for each alkene, to determine its peak and retention time.
To answer this we need to assume that at STP 1 mol of a substance is equal to 22.4 L. We use this data for the calculations.
Statement 1
2 mol HCl (1 mol H2 / 2 mol HCl) = 1 mol H2 thus at STP 22.4 L H2
<em>This statement is false.</em>
Statement 2
1 L Zn (1 mol Zn / 22.4 L Zn) (1 mol H2 / 1 mol Zn) (22.4 L H2 / 1 mol H2) = 1L H2
<em>This statement is true.</em>
Statement 3
65.39 g Zn (1 mol Zn / 65.39 g Zn) (1 mol H2 / 1 mol Zn) = 1 mol H2
<em>This statement is true.</em>
Statement 4
1L HCl (1 mol HCl / 22.4 L HCl)(1 mol H2 / 2 mol HCl) = 0.022 mol H2
<em>This statement is false.</em>
Potassium burns a violet color
Answer:
Explanation:
1 moles Gallium to grams = 69.723 grams
2 moles Gallium to grams = 139.446 grams
3 moles Gallium to grams = 209.169 grams
4 moles Gallium to grams = 278.892 grams
5 moles Gallium to grams = 348.615 grams
6 moles Gallium to grams = 418.338 grams
7 moles Gallium to grams = 488.061 grams
8 moles Gallium to grams = 557.784 grams
9 moles Gallium to grams = 627.507 grams
10 moles Gallium to grams = 697.23 grams
