Answer: 
moles
Explanation:
According to avogadro's law, 1 mole of every substance weighs equal to molecular mass , occupies 22.4 L at STP and contains avogadro's number 
of particles.
To calculate the moles, we use the equation:
Given mass of ethanol = 0.2301
Molar mass of ethanol = 46.07 g/mol
Thus there are moles of ethanol are present in the sample.
Answer:
Molality is 0.40 m
Explanation:
Molality is a sort of concentration that indicates the moles of solute dissolved in 1kg of solvent.
To determine molality we need the moles of solute, and the mass of solvent in kg so:
We convert the mass of solvent from g to kg:
740 g . 1kg/1000g = 0.740 kg
We know the moles, so we can determine molality
Molality (mol/kg) = 0.295 mol/ 0.740kg = 0.40 m
Answer:
Disnt make sense show me question
Answer:
1. a part of the soil that contains decayed plant or animal matter
2. erosion
3. topsoil
Explanation:
Hope this helped :)
