Time because even if time changes potential and kinetic energy won’t be affected as much
Answer:
a) COCl₂.
b) The molecular formula is COCl₂.
Explanation:
To obtain empirical formula of phosgene you should divide elemental compositions over atomic mass of each atom, and divide these results between the smallest, thus:
C = 12,14%/12,01 = 1,01
O = 16,17%/16 = 1,01
Cl = 71,69%/35,45 = 2,02
Empirical formula:
C = 1,01/1,01 = 1
O = 1,01/1,01 = 1
Cl = 2,02/1,01 = 2
C₁O₁Cl₂ ≡ COCl₂
b) You need to find the molar mass of the empirical formula to determine the ratio of the real formula, thus:
1×C 12,01g/mol =
1×O 16 g/mol =
2×Cl 35,35g/mol = 98,91g/mol
As real molecular mass is 98,9 g/mol. The molecular formula: COCl₂
I hope it helps!
As temperatures increase, additional heat energy is applied to the constituent parts of a solid, which causes additional molecular motion. Molecules begin to push against one another and overall volume of a substance increases. When thermal energy is added to a substance, it’s temperature increases.
Answer:
The correct answer is - B. New Moon.
Explanation:
The change of moon disc from all black to all light to all dark again is called the lunar cycle. It takes almost 30 days (29.53059 to be precise). The time from all black to all light or all light to all black is almost 15 days. All black moon is termed as the new moon and all light is termed as the full moon.
As given that the full moon is shown happening on the eleventh of the month then what moon would be around 25 which is 14 days later that should be in waxing gibbous phase and almost new moon.
Thus, the correct answer is - B. new moon.
Answer:
The answer is below
Explanation:
Because various factors can affect the actual value of the titration outcome. Some of these factors can range from errors from a researcher also known as human error, misreading the quantities, researcher's perception of the color, or wrong procedure in carrying out the experimentation.
Hence, in order to avoid such error, a researcher needs to be thorough during the process of experimentation, and using gross reading can help to avoid these errors when the titre value is eventually determined.
