Answer:
The answer is
<h2>2.55 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula
From the question
mass = 416 g
volume = final volume of water - initial volume of water
volume = 523 - 360 = 163
volume = 163 mL
The density is
We have the final answer as
<h3>2.55 g/mL</h3>
Hope this helps you
Answer:
nitrate and sodium are spectator ions .The reactions that form an aqueous solution are often a spectator ions.
Work Done = force x displacement. So in this case the 15N is the force (because weight is a force) and 0.60m is the displacement. Therefore 15 x 0.6 = 9 Joules of work done (btw, work done can also be referred to as energy transferred)
Answer:
molality = 0.564 m
Explanation:
Molality = number of moles of solute / kg of solvent
1- getting moles of solute:
number of moles = mass / molar mass
we have:
mass = 373.5 g
molar mass = 331.2 g/mol
Therefore:
number of moles = 373.5 / 331.2 = 1.128 moles
2- getting kg of solvent:
mass in kg = mass in grams * 10⁻³
mass in kg = 2 * 10³ * 10⁻³
mass in kg = 2 kg
3- getting molality:
Molality = number of moles of solute / kg of solvent
Molality = 1.128 / 2
Molalty = 0.564 m
Hope this helps :)
