# The ph of 0.001dm3 of hcl is?

**Question: ****The ph of 0.001dm3 of hcl is?**

The pH of 0.001dm3 of HCl is a measure of how acidic or basic the solution is. The pH is defined as the negative logarithm of the hydrogen ion concentration in moles per liter. To calculate the pH of 0.001dm3 of HCl, we need to know the molarity of the solution. The molarity is the number of moles of solute per liter of solution. Since HCl is a strong acid, it dissociates completely in water and produces one mole of hydrogen ions and one mole of chloride ions for every mole of HCl. Therefore, the molarity of HCl is equal to the number of moles of HCl divided by the volume of the solution in liters. In this case, the volume of the solution is 0.001dm3, which is equal to 0.001L. The number of moles of HCl can be found by multiplying the mass of HCl by its molar mass. The mass of HCl is given by the density times the volume, which is 1.18g/mL times 0.001L, which is 0.00118g. The molar mass of HCl is 36.46g/mol, so the number of moles of HCl is 0.00118g divided by 36.46g/mol, which is 0.0000324mol. Therefore, the molarity of HCl is 0.0000324mol divided by 0.001L, which is 0.0324M. To find the pH, we take the negative logarithm of the hydrogen ion concentration, which is equal to the molarity of HCl in this case. The pH is -log(0.0324), which is 1.49.

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