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1 year ago

A solution is 0. 0480 m lif. What is the molarity of the solution if the density is 1. 10 g/ml?.

Chemistry

1 answer:

makkiz [27]1 year ago

3 0

Molarity of the solution is 0.0527 M.

<h3>What is Molarity?</h3>

The amount of a substance in a specific volume of solution is known as its molarity (M). The number of moles of a solute per liter of a solution is known as molarity. The molar concentration of a solution is another name for molarity.

<h3>Calculation of Molarity of the solution</h3>

Assume there is 1 kg of solvent present in the beginning.

Thus, the mole of solute is 0.0480 moles of LiF.

Molar mass of LiF = 25.939 grams/mole

0.0480 mol LiF x 25.939 g/1 mol LiF = 1.245 g LiF

Mass of the solution = 1001.245 g

The molarity of the solution can be determined as illustrated using the supplied density and moles of solute.

[LiF] = mol LiF/ volume of solution

[LiF] = 0.0480 mol/1001.245 g x 1ml/1.10g x 1L/1000mL

Hence, the molarity of LiF = 0.0527 M

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If a 28.0 L balloon with a temperature of

Alexeev081 [22]

Answer:

5.6 L

Explanation:

We can apply Charles' Law here since our pressure is constant (will not change inside the refrigerator) and we are relating change in volume with change in temperature:

V₁ / T₁ = V₂ / T₂ where V₁ and T₁ are initial volume and temperature, and V₂ and T₂ are final volume and temperature. Let's plug in what we know and solve for the unknown:

28.0 L / 25 °C = V₂ / 5 °C => V₂ = 5.6 L

5.6 L is our new volume (at 5 °C).

6 0

3 years ago

Write the name of the alkyne next to the drawing of the molecule. (2 points)

azamat

1) 1-Pentyne

2) But-2-yne

3) Ethyne

4) 1-Propyne

5) 1-Butyne

6) Pent-2-yne

<h3>What is alkyne?</h3>

Molecules that contain a triple bond between two carbon atoms are known as alkynes.

1) The number of carbon on the longest chain = 5, (two carbon atoms between the triple bond) therefore the prefix is pen-

The functional group is the triple bond on the first carbon with the suffix -yne

The name of the compound is 1-Pentyne

2) There are 4 carbon atoms on the longest chain, therefore, the prefix is but-

The location of the triple bond functional group (suffix; -yne) is on the second carbon atom

Therefore, the name of the compound is But-2-yne

3) The triple bond functional group is between the only two carbon atoms, therefore, the name is Ethyne

4) The number of carbon atoms = 3, with a prefix prop-, and the functional group on the first carbon atom on the longest chain is the triple bond, with suffix -yne

Therefore, the name of the compound is 1-Propyne

5) The number of carbon atoms on the longest chain = 4, the prefix is but-

The location of the triple bond functional group (suffix -yne) is on the first carbon atom

Therefore, the name is 1-Butyne

6) The number of carbon atoms on the longest chain = 5, the prefix of the compound is pen-

The location of the triple bond functional group (suffix; -yne) is on the second carbon atom, therefore;

The name of the compound is Pent-2-yne

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6 0

2 years ago

CaO + H2O -> Ca(OH)2

yawa3891 [41]

The % yield of Ca(OH)₂ : 62.98%

<h3>Further eplanation </h3>

Percent yield is the compare of the amount of product obtained from a reaction with the amount you calculated

General formula:

Percent yield = (Actual yield / theoretical yield )x 100%

An actual yield is the amount of product actually produced by the reaction. A theoretical yield is the amount of product that you calculate from the reaction equation according to the product and reactant coefficients

Reaction

CaO + H₂O ⇒ Ca(OH)₂

mass CaO= 4.2 g

mol CaO(MW=56,0774 g/mol) :

$\tt mol=\dfrac{mass}{MW}\\\\mol=\dfrac{4.2}{56,0774 g/mol}\\\\mol=0.075$

mol Ca(OH)₂ based on mol CaO

mol ratio CaO : Ca(OH)₂,= 1 : 1, so mol Ca(OH)₂ = 0.075

mass Ca(OH)₂(MW=74,093 g/mol) ⇒ theoretical

$\tt mass=mol\times MW\\\\mass=0.075\times 74,093 g/mol\\\\mass=5.557~g$

% yield :

$\tt =\dfrac{actual}{theoretical}\times 100\%\\\\=\dfrac{3.5}{5.557}\times 100\%\\\\=62.98\%$

8 0

3 years ago

The quantity 44 liters expressed in cubic meters is ____.

Lerok [7]

D. 0.044 m3

hope this helped

7 0

3 years ago

The density of water is 1.0gcm3 at 4∘C. What is the mass of 15mL of water at this temperature?

muminat

Answer:

15 gram

Explanation:

in one liter

=1000ml = 1000 cm3

so 15 ml = 15 cm3

15 cm3 = 15 gram

6 0

4 years ago