Explanation:
It is known that in a simple cubic unit cell the atoms are only present at the corner of the unit cell. This means that there are in total 8 atoms present in a simple cubic unit cell.
Therefore, in one simple cubic unit cell sharing of one atom is only .
Hence, the total number of atoms in a unit cell will be as follows.
= 1
Thus, we can conclude that there is 1 calcium atom present in each unit cell.
Answer:
The boiling point would be 120
Explanation:
Answer:
+and+
Explanation:
positive is helps to the right and wrong way
The percent yield : 81.5%
<h3>Further explanation</h3>
Percent yield is the compare of the amount of product obtained from a reaction with the amount you calculated
General formula:
Percent yield = (Actual yield / theoretical yield )x 100%
An actual yield is the amount of product actually produced by the reaction. A theoretical yield is the amount of product that you calculate from the reaction equation according to the product and reactant coefficients
Reaction
2CO+O₂⇒2CO₂
mol CO(MW=28,01 g/mol)
mass CO₂ (theoretical)(MW=44,01 g/mol)
the percent yield :
We need to calculate molar mass of empirical formula and compare it with real molar mass
1) M(C6H8O)==6*M(C) +8*M(H) + M(O)=12*6+8*1+16= 96 g/mol
2) compare with real molar mass 290/96≈ 3
Real Molar mass is 3 times more, so the number of atom of each element in molecular formula will be 3 times more
3) C(6*3)H(8*3)O(1*3)
C18H24O3 - molecular formula