gabriellax995
29.01.2020 •
Chemistry
"calculate the number of moles of nahco3 that were required to neutralize the ch3cooh in the vinegar."
i had to add nahco3 to a bowl of vinegar. it took an average of 142.3 drops of nahco3 using an eyedropper to neutralize the ch3cooh in the vinegar. the volume of the nahco3 was 7.3 ml, while the volume of the ch3cooh was 9.86 ml.
i'm not sure how to find the answer to this question though. any would be appreciated!
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Ответ:
Here are my notes from mole conversion. I don't know if they will help but
Ответ:
Statement 2-Atom B has an atomic number of 20 and a mass number of 40
Explanation:
mass number = the sum of protons and electrons
Atom A would be an isotope ( which I don't think exist )