3 years ago

How are the structure and properties of solids related

1 answer:

5 0

The general properties of solids reflect the orderly arrangement of their particles and the fixed locations of their particles.

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Naya [18.7K]

Answer:

The pH of the HCl solution is 3.9

Explanation:

Knowing the molar mass of HCl (36.5g/mol) it is possible to calculate the number of moles of HCl in the solution,

$\frac{1.5x10^{-3}g}{36.5g/mol} = 4.1x10^{-5}moles$ of HCl

HCl is a strong acid and when added to water will form H+ and Cl-, thus the moles of HCl are equal to moles of H+ in 354 mL of water

$\frac{4.1x10^{-5}moles }{354mL} x 1000= 1.16x10^{-4} M$

The concentration of protons in the solutions is $1.16x10^{-4} M$ .

The expression used to calculate the pH is

$pH = -Log ([H^{+}]) = -Log (1.16x10^{-4} M) = 3.9$

Hence, the pH of the HCl solution is 3.9 and Pepsi has a pH of 3.4 approximately, so they have almost the same pH.

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3 years ago