Answer:
The answer is
<h2>2.64 g/mL</h2>Explanation:
The density of a substance can be found by using the formula
From the question
mass = 611 g
volume = final volume of water - initial volume of water
volume = 256.7 - 25.1 = 231.6 mL
The density of the metal is
We have the final answer as
<h3>2.64 g/mL</h3>Hope this helps you
Explanation:
The reaction equation will be as follows.
Using bond energies, expression for calculating the value of is as follows.
On reactant side, from number of bonds are as follows.
C-C bonds = 1
C-H bonds = 6
From ; Cl-Cl bonds = 1
On product side, from number of bonds are as follows.
C-C bonds = 1
C-H bonds = 5
C-Cl bonds = 1
From HCl; H-Cl bonds = 1
Hence, using the bond energies we will calculate the enthalpy of reaction as follows.
= = -102 kJ/mol
Thus, we can conclude that change in enthalpy for the given reaction is -102 kJ/mol.
Answer:
Explanation:
Moles of NaCl :
Given, Mass of NaCl = 72.24 g
Molar mass of NaCl = 58.44 g/mol
The formula for the calculation of moles is shown below:
Thus,
NaCl is a strong salt. So, moles of chloride ion = 1.2361 moles
Volume = 0.862 L