Explanation:
A 24 Karat gold is 100 per cent pure gold and does not have any other metal mixed. ... The 24 karat gold is more expensive than 22 or 18 Karat gold. It is soft and pliable and that's why not used in making regular forms of jewellery
Caused by the earths tilt
The mass of the acid produced is 0.252 g from the information in the question.
<h3>What is neutralization?</h3>
The term neutralization refers to the reaction between an acid and a base that yileds salt and water only.
The equation of this reaction is; 2HCl + CaCO3 ----->CaCl2 + CO2 + H2O
Number of moles of CaCO3 = 0.350 g/100 g = 0.0035 moles
Since 2 moles of acid reacts with 1 mole of CaCO3
x moles acid reacts with 0.0035 moles of CaCO3
x = 0.007 moles
Mass of acid = 0.007 moles * 36 g/mol = 0.252 g
Learn more about neutralization: brainly.com/question/15395418
Based on the fgiven K_{a} values of the acids, the equilibrim concentrations of and is dtermined using ICE tables.
<h3>
What are acid dissociatio constants ?</h3>
An acid dissociation constant, of an acid is a measure of the strength of the acid in solution. The larger the value of an acid, the stronger the acid, therefore, acid dissociation constants are usually apply to only weak acids because strong acids have exceedingly large values.
It is written as a qoutient of the equilibrium concentrations of the aqueous species in the acid solution.
For the weak acids such as and , their equilibrim concentrations are determined using their values and an ICE table.
The pH of solutions are estimated using indicators such as methyl orange, methyl red and phenolphthalein. The colors of indicators change according to the pH of the solution
Acidic solutions have pH less than 7 while alkaline solutions have pH greater than 7.
Therefore, acids have low pH and weak acids have low values.
Learn more about acid dissociation constant at: brainly.com/question/3006391