Answer:
Molar mass of Al2O3 = 101.961276 g/mol
This compound is also known as Aluminium Oxide.
Convert grams Al2O3 to moles or moles Al2O3 to grams
Molecular weight calculation:
26.981538*2 + 15.9994*3
Percent composition by element
Element Symbol Atomic Mass # of Atoms Mass Percent
Aluminium Al 26.981538 2 52.925%
Oxygen O 15.9994 3 47.075%
Explanation:
Percent composition by element
Element Symbol Mass Percent
Aluminium Al 52.925%
Oxygen O 47.075%
Take the Atomic mass of Carbon and multiply it by 6.24.
12.01 x 6.24=74.9424
Answer:
![m_{H_2O}=8.9g](https://tex.z-dn.net/?f=m_%7BH_2O%7D%3D8.9g)
Explanation:
Hello,
Based on the given reaction, since magnesium and water are in a 1:2 molar ratio at the reactants, we must apply the following stoichiometric factors to compute the complete reaction of the 6.0 g of magnesium:
![m_{H_2O}=6.0gMg*\frac{1molMg}{24.305 gMg}*\frac{2molH_2O}{1molMg} *\frac{18gH_2O}{1molH_2O} \\\\m_{H_2O}=8.9g](https://tex.z-dn.net/?f=m_%7BH_2O%7D%3D6.0gMg%2A%5Cfrac%7B1molMg%7D%7B24.305%20gMg%7D%2A%5Cfrac%7B2molH_2O%7D%7B1molMg%7D%20%2A%5Cfrac%7B18gH_2O%7D%7B1molH_2O%7D%20%5C%5C%5C%5Cm_%7BH_2O%7D%3D8.9g)
Best regards.
A concave meniscus, occurs when the molecules of the liquid are drawn to those of the container. This occurs with water and a glass tube, or cup.
Adhesion is responsible for a meniscus and it has to do with high surface tension
Hope this helps you out a little bit