ohms law said:At this point you should know about Molality.
There should be an equation for it (Molality) in your textbook... I think that Borek wants you to look it up rather than me tell you what the equation is. You'll really need to memorize what the equation is anyway (don't worry, it's straight forward).
To calculate the concentration of N/5 HCl, you will need to know the number of moles of HCl present. To determine this, you can use the formula: moles = mass/molar mass. In this case, the molar mass of HCl is 36.46 g/mol. So, if 3.65g of HCl was removed, the number of moles would be 3.65g/36.46 g/mol = 0.1 mol. Since N/5 HCl means 1/5 of a normal solution, the concentration would be 0.1 mol/5 = 0.02 M.
The molar mass of HCl, or hydrochloric acid, is 36.46 g/mol. This means that for every one mole of HCl, there are 36.46 grams of the compound.
Calculating the concentration of a solution is important because it allows you to determine the amount of solute present in a given amount of solvent. This information is crucial for many scientific experiments and processes, as it helps to ensure accuracy and consistency in results.
Normality (N) and molarity (M) are both units of concentration, but they measure different properties of a solution. Normality measures the number of equivalents of a solute per liter of solution, while molarity measures the number of moles of a solute per liter of solution.
Yes, the concentration of a solution can change after the removal of a certain amount of solute. This is because the concentration is dependent on the amount of solute and solvent present in the solution. Removing solute will decrease the concentration, while adding more solvent will increase the concentration.