Answer:
Mass = 239.62 g
Explanation:
Molality is given as,
m = Moles of Solute / Kg of Solvent --- (1)
Data Given;
Molality = 1.5 m
Mass of Solvent = 750 g = 0.75 Kg
Solving eq. 1 for Moles,
Moles = Molality × Mass of Solvent
Putting values,
Moles = 1.5 mol.Kg⁻¹ × 0.75 Kg
Moles = 1.125 mol
Calculating mass from moles,
Moles = Mass / M.mass
Or,
Mass = Moles × M.mass
Putting values,
Mass = 1.125 mol × 213 g.mol⁻¹
Mass = 239.62 g
I´m pretty sure its magnesium iron silicate.
I Would think it would be C Since Humans can't live 500 years but then yet again it is light years not regular years i think if you find how man years is 500 light years the that could help you in finding the answer
<u>Given information:</u>
Concentration of HCl = 0.035 M
<u>To determine:</u>
pH of the solution
<u>Explanation:</u>
Hydrochloric acid, HCl is a strong acid. It will completely dissociate to give H+ and Cl- ions
HCl → H+ + Cl-
Hence the concentration of H+ = Cl- = 0.035M
Now, pH measures the strength of H+ ions in a given solution. It is expressed as:
pH = -log[H+]
pH (HCl) = -log(0.035) = 1.46
Ans: pH of 0.035M HCl is 1.46
