Answer:
[MgCl₂] = 1.05 m
Explanation:
Molality is a type of concentration that indicates the moles of solute in 1000g of solvent.
m = mol/kg.
Our solute is MgCl₂. We convert mass to moles:
25 g . 1mol / 95.21 g = 0.262 moles.
Our solvent is water → 250 mL of H₂O
We use density to determine the mass: density = m / V
Density . V = m → 0.9975 g/mL . 250 mL = 249.3 g
We convert from g to kg = 249.3 g . 1kg/1000g = 0.2493kg
molality → 0.262 mol /0.2493kg = 1.05
Answer:
The words that have some thing match them together and that’s your answer!
Explanation:
Answer:
150.016 grams
Explanation:
molar mass of cH3OH=12+4+16 =32 u
mass = nu. of moles × molar mass
mass= 0.2344 × 32 =7.5008 gm÷ 0.0500 = 150.016 gm
Balanced chemical equation for the given reaction is Fe₂(CO₃)₃ + 6Cs → 3Cs₂CO₃ + 2Fe.
<h3>What is balanced equation?</h3>
Balanced chemical equations are those equations in which all entities are present in equal amount on reactant side as well as on product side.
Given balanced chemical reaction is:
Fe₂(CO₃)₃ + 6Cs → 3Cs₂CO₃ + 2Fe
Above given equation is a balanced chemical equation where all atoms of reactant as well as of products are present in same amount.
Hence, required balanced equation is Fe₂(CO₃)₃ + 6Cs → 3Cs₂CO₃ + 2Fe.
To know more about balanced chemical reaction, visit the below link:
brainly.com/question/26694427
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Answer:
HF
Explanation:
This concept can be understood from the knowledge of Intermolecular forces of attraction.
Intermolecular bonds are Van der Waals forces which are weak forces of attraction joining non-polar and polar molecules together. They exist in the form of London Dispersion Forces and Dipole-dipole attraction.
An example of Dipole-dipole attraction is the hydrogen bond which is a unique dipole-dipole attraction between polar molecules in which a hydrogen atom is directly joined to a highly electronegative atom such as fluorine, oxygen, or nitrogen).
Molecules that possess the characteristics of hydrogen bonding have a higher boiling point. In the given question, only HF undergo hydrogen bond due to the electronegative effect of the fluorine element.
F2 occurs as a weak London dispersion force and it occurs between non-polar molecules.
