Answer:
Explanation:
Hello,
This types of reactions are likely to be carried out in gaseous phase as it is easier to induce reactions, therefore, for us to compute the change in the enthalpy of this reaction we should write the formation enthalpy of gaseous methanol, hydrogen chloride, methyl chloride and water as -205.1, -92.3, -83.68 and -241.8 kJ/mol respectively. Then, the reaction enthalpy for this reaction is:
Which accounts for an exothermic chemical reaction.
Regards.
Answer:
Rinse with vinegar solution several times.
Explanation:
The objective of <em>conditioning</em> equipment is that any impurities are removed before using the glassware in the experiment.
Another reason for conditioning is that any drops left in the glassware are from the intended solution and not water, that way the concentration will not change. However this is why washing thoroughly with soap and water would defeat the purpose of conditioning. It's possible to first wash with soap and water and then rinse with vinegar, but not viceversa.
Answer:
The primary cause of climate change is the burning of fossil fuels, such as oil and coal, which emits greenhouse gases into the atmosphere—primarily carbon dioxide. Other human activities, such as agriculture and deforestation, also contribute to the proliferation of greenhouse gases that cause climate change
Answer:
63.55 amu
Explanation:
(0.692 * 62.930) + (0.308 * 64.928) = 63.55 amu
Copper has two naturally occurring
isotopes: copper-63 (69.17%) and
copper-65 (30.83%).
Calculate the average atomic mass of
copper if the relative masses of the
isotope are copper 63 (62.93 amu)
and copper-65 (64.93 amu).
Cu-63 (0.6917 x 62.93 amu)
Cu-65 + (0.3083 x 64.93 amu)
Avg. mass = 63.55 amu
