Answer: C I think tell me if its wrong
Explanation:
Mass of NaCl = moles x molar mass of NaCl
= 11 x 58.443
= 642.873 grams.
Hope this helps!
Answer:
14-6
8
so 8 is the answer because atomic number is number of protons and atomic mass is sum of protons and neutrons so to find the number of neutrons we will subtract proton number with the atomic mass.
Thanks
Answer:
Explanation:
Hello,
In this case, for the sample of the given compound, we can compute the moles of each atom (carbon, hydrogen and oxygen) that is present in the sample as shown below:
- Moles of carbon are contained in the 9.582 grams of carbon dioxide:
- Moles of hydrogen are contained in the 3.922 grams of water:
- Mass of oxygen is computed by subtracting both the mass of carbon and hydrogen in carbon dioxide and water respectively from the initial sample:
Finally, we compute the percent by mass of oxygen:
Regards.