The number of moles contained in each of the question are a) 3.935 and b) 0.001165 mol.
<h3>What are moles?</h3>
Moles are a quantity or amount of a substance. Denoted by n.
To calculate moles, mass is divided by the molar mass
n = m/M
mass is divided by the molar mass
a) 230 grams of NaCl
n = m/M
molar mass of NaCl is 58.44 g/mol
n = 230 / 58.44 = 3.935 mol
b) 0.210 g of aspirin
n = m/M
molar mass of aspirin is 180.158 g/mol
n = 0.210 / 180.158 = 0.001165 mol
Thus, the moles are a) 3.935 and b) 0.001165 mol.
Learn more about moles
brainly.com/question/26416088
#SPJ1
Answer:
Yes, since it has alcohol, it conducts electricity.
Answer:
The electron moves by charge attraction
Explanation:
The electrons move by static attraction. Electrons are negatively charged particles that are closely connected with the atoms. The electrons are always delocalized. This means that they belong to no particular atom, but instead, are freely moving around. It is the electrons that help with the transfer of charge in the molecule. In addition, it is the delocalized electrons that carry the charge in the solution. Finally, it is the electrons that make the solution to conduct current.
Given the mass percentage of HCl solution = 15.00 %
This means that 15.00 g HCl is present in 100 g solution
Moles of HCl = 
Density of the solution = 1.075 g/mL
Calculating the volume of solution from density and mass:
Converting volume from mL to L:
Calculating the molarity of HCl solution from moles and volume:
