Answer:
yes
Explanation:
Revolution is the movement of an object around another object. So, Earth revolves around the Sun, and the Moon revolves around Earth. At the same time, Earth and the Moon are also rotating. Earth's rate of revolution is about 365 days (one year), and its rate of rotation is about 24 hours (one day).
To determine the concentration of the solution of sulfuric acid, the chemist should perform titration with the use of 1.0 M NaOH. This is the answer in the space provided. The 1.0 M NaOH is suitable in the titration because it is a base, which is used in titration in order to determine the unknown concentration.
I really think it is D! I hope this is correct for you!
Answer:
67.4 mol of O atoms
Explanation:
Cassitrerite is a Tin Mineral having a chemical formula SnO₂. As seen in chemical formula there are two moles of Oxygen atoms for each Tin atom. So we can conclude that,
For,
1 mole of Sn in SnO₂ there are = 2 moles of O atoms
So for,
33.7 moles of Sn there will be = X moles of O atoms
Solving for X,
X = (33.7 mol of Sn × 2 mol of O) ÷ 1 mol of Sn
X = 67.4 mol of O atoms