Answer:
The number of mole is 0.04167mole
Explanation:
To convert gram to mole, we need to calculate the molecular weight of the compound
C6H12O6
C - 12
H - 1
O - 16
Molecular weight = 6 * 12 + 1 *12 + 6 * 16
= 72 + 12 + 96
= 180g/mol
To covert gram to mole
Therefore,
= 7.50g/ 180g/mol
= 0.04167 mole of glucose
Answer:- 324.3 grams.
Solution:- We have been given with 6.0 moles of nitrous acid and asked to calculate it's grams. Moles to grams is a unit conversion and for doing this conversion we multiply the given moles by the molar mass of the compound.
Molar mass is the formula mass and to calculate this the atomic masses of each atom are multiplied by their respective subscripts that is the number of the atom in the compound .
For example,
has one nitrogen atom and one oxygen atom. So, the molar mass of this is = atomic mass of N + 2(atomic mass of O)
= 14 + 2(16)
= 14 + 32
= 46 gram per mol
gram per mol is the unit of molar mass. So, the molar mass of
is 46 grams per mol.
Let's calculate the molar mass of nitrous acid using the same concept.
molar mass of [
= 1 + 14 + 2(16)
= 1 + 14 + 32
= 47 grams per mol
Now, 6.9 moles of nitrous acid could easily be converted to grams as:
![6.9molHNO_2(\frac{47g}{1mol})](https://tex.z-dn.net/?f=6.9molHNO_2%28%5Cfrac%7B47g%7D%7B1mol%7D%29)
= 324.3 g
Hence, the mass of 6.9 moles of nitrous acid is 324.3 grams.
Well, a magnet could DEFINITELY change if it gets exposed to heat, because you could melt the metal and change its shape.
If you hit it hard though, it wouldn't make much of a difference because the magnet is metal, so you'll probably just chip it or leave a dent.
Hope this helps ;)
True because any mass in a closed system will not add or lose mass
<span>Stearic acid is more volatile than sucrose. Stearic acid is non polar, which means it dissolves in non polar solvent such as hexane. Sucrose on the other hand is a polar molecule, as it is soluble in water like the monosaccharides. Volatile is a feature in which something is evaporating or vaporizing readily under normal conditions. Stearic acid unlike sucrose has a pungent smell . Pure sucrose is mostly often prepared as a fine, colorless, odorless crystalline powder. It is possible for a compound to be volatile but odorless. </span>