Answer:
60 g/L is the final concentration of NaI solution .
Explanation:
Molarity of NaI solution before evaporation =
Volume of NaI solution before evaporation =
Molarity of NaI solution after evaporation =
Volume of NaI solution after evaporation =
( dilution)
Molar mass of NaI = 150 g/mol
Concentration of NaI after evaporation :
0.4 M × 150 g/mol = 60 g/L
60 g/L is the final concentration of NaI solution .
Answer:
Explanation:
Hello.
In this case, we first compute the volume of the pool via:
Then, since the density is defined as the mass divided by the volume, we compute the mass as follows:
Best regards.
The density of magnesium will be 1.74 g/cm³ if 23.5 g of magnesium occupies 13.5 cm³
<h3>What is Density ?</h3>
Density is the measurement of how tightly a material is packed together.
It is defined as the mass per unit volume.
Given ;
- Mass = 23.5 g
- Volume = 13.5 cm³
Formula to calculate density ;
Density = mass / volume
=23.5 / 13.5 = 1.74 g/cm³
Hence, the density of magnesium will be 1.74 g/cm³ if 23.5 g of magnesium occupies 13.5 cm³.
Learn more about density here ;
brainly.com/question/15164682
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<span>A
substance can absorb or release heat energy by the process of radiation,
convection, or conduction. Radiation refers to the transfer of energy through emission
of electromagnetic waves or the movement of particles. An example of radiation
is the Sun’s rays. This type of heat transfer does not require direct contact between
objects. Convection, on the other hand, involves the hotter fluid rising while
the colder fluid sinks. Convection occurs when you boil water in a pan. Lastly,
conduction is a heat transfer that occurs as a result of temperature difference
between two objects in contact. Heat is transferred from the hotter region to
the colder region. Conduction occurs when ice melts in your hands. </span>
