b) 1.67 x 10-2 moles x 6.02x1023 molecule x 1 atom = 1.01 x 1022 atoms of copper produced…
What happens to the mass of the copper carbonate when it is heated? Give a conclusion, which describes why the mass of copper carbonate may have changed during your experiment.…
Copper wire is used to power appliances and other devices so it has a high capacity for transmitting electricity.…
Calculate the moles of copper, this is the mass of copper (in g) divided by the atomic mass of copper, (63.5 g/mol)…
5) For each of the reactions list the physical evidence that a chemical change was taking place (Please refer to the order in #3)…
The objective of this experiment was to identify the unknown pure copper salt compound of #9. To do this, the mass of copper in the unknown was calculated and then divided by the mass of the whole compound to get the percent copper. The molecular weight was also calculated by dividing mass of copper compound used by moles of compound in unknown sample. The percent copper averaged out to 31.6% while the molecular weight of the sample averaged out to 201.1mw. In conclusion, the unknown compound of pure copper salt was close to Cu(C2H3O2)2 •H2O which has a percent copper of 31.8% and a molecular weight of 199.654mw.…
5. The difference in mass of isotopes of the same element is due to the different number of…
The book COPPER SUN by Sharon M. Draper. Is an interesting story of a girl, named Amari, who lived in a nice village, with her family and friends until, she was kidnapped and sold into slavery. She has many emotions in this book. But I chose a few that I thought were the most important. Which are, frightened and happiness.…
Initially, the copper was a solid that was cut into thin strips. It had a shiny/metallic and opaque look, with an orange colour.…
6. Mr= the sum of the number of atoms x Ar: relative formula mass(for molecule and non-molecule substances)/relative molecular mass(only for molecular substances)…
3. Write the chemical equation(s) for each part of the following terms as it relates to this experiment.…
2. Calculate the percent abundance of each isotope by dividing its number of particles by the total number of particles and multiplying by 100. Record your…
The post-lab questions listed at the end of the experiment are to be addressed and discussed in the discussion or error section. They are NOT to be answered, as is normally done, as a list of questions. Even if all of the answers are correct, do not give a score higher than satisfactory for that section if this is how they answered the questions.…
Might not be on test. Ask teacher. Chlorine has two stable isotopes with masses of 34.97 amu and 36.97 amu. What is the relative abundance of the two isotopes? a. b. c. d. e. 50.00% 35Cl and 50.00 % 37Cl 35.45% 35Cl and 64.55 % 37Cl 64.55% 35Cl and 35.45% 37Cl 24.23% 35Cl and 75.77 % 37Cl 75.77 % 35Cl and 24.23 % 37Cl…
Drinking water from a pure copper mug is considered very beneficial for our well-being. By storing water in one of the copper mugs, minute traces of copper will start to leach into the water. Plus, the water that is left in these mugs will stay fresh for a long-time and won't start to taste stale. Here are five reasons to drink from a copper mug: Digestive system Copper contains beneficial properties that can promote the more efficient digestive system. A well-balanced diet that includes the copper-infused water can help the stomach in several ways, such as reducing inflammation, killing harmful bacteria, and increasing the ability to fight infections, indigestion, and ulcers.…