Answer:
The answer is
<h2>0.052 g/cm³</h2>Explanation:
The density of a substance can be found by using the formula
From the question
mass = 2.5 g
volume = 48 cm³
The density is
We have the final answer as
<h3>0.052 g/cm³</h3>Hope this helps you
Why Aluminium Oxide has higher melting point than Alumunium Chloride? Try to mentioned about ionic compound.
1 answer:
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Answer:
See explanation and image attached
Explanation:
A bond line structure refers to any structure of a covalent molecule wherein the covalent bonds present in the molecule are represented with a single line for each level of bond order.
The bond-line structure of CH3CH2O(CH2)2CH(CH3)2 has been shown in the image attached. We know that oxygen has a lone pair of electrons and this has been clearly shown also in the image attached.
The question is incomplete, the complete question is:
The solubility of slaked lime, , in water is 0.185 g/100 ml. You will need to calculate the volume of
M HCl needed to neutralize 14.5 mL of a saturated
<u>Answer:</u> The volume of HCl required is 290mL, the mass of is 0.0268g, the moles of
<u>Explanation:</u>
Given values:
Solubility of = 0.185 g/100 mL
Volume of = 14.5 mL
Using unitary method:
In 100 mL, the mass of present is 0.185 g
So, in 14.5mL. the mass of present will be =
The number of moles is defined as the ratio of the mass of a substance to its molar mass.
The equation used is:
......(1)
Given mass of = 0.0268 g
Molar mass of = 74 g/mol
Plugging values in equation 1:
Moles of present =
The chemical equation for the neutralization of calcium hydroxide and HCl follows:
By the stoichiometry of the reaction:
Moles of = Moles of
= 0.000724 mol
The formula used to calculate molarity:
.....(2)
Moles of HCl = 0.000724 mol
Molarity of HCl =
Putting values in equation 2, we get:
Hence, the volume of HCl required is 290mL, the mass of is 0.0268g, the moles of