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- pH or power of hydrogen is a scale which is used to measure acidity or basicity of an aqueous solution. low ph means more acidic and high ph means more alkaline. pH scale is logarithmic and is give by the formula:
- pH = - log (H+) ion
- here , H+ = 0.004M
- pH= - log (0.004)
- using log table we can find the value as
- pH= 2.397
What else can I help you with?
What is the mole fraction of HCl in an aqueous solution that is 27.2 percent HCl by weight?
To find the mole fraction of HCl in the solution, we first need to calculate the molar mass of HCl (H=1g/mol, Cl=35.5g/mol). Then, determine the number of moles of HCl in 100g of the solution. Finally, calculate the mole fraction of HCl by dividing the moles of HCl by the total moles of solute and solvent in the solution.
Calculate the mole fraction of HCl in 20 percent aqueous solution?
The mole fraction of HCl in a 20% aqueous solution can be calculated by converting the percentage to a molarity concentration. Assuming the density of the solution is 1 g/mL, a 20% solution means 20g of HCl in 100g of solution. If the molar mass of HCl is 36.5 g/mol, we can calculate the molarity and then use it to find the mole fraction of HCl in the solution.
How do calculate molarity example being calculate molarity of 6.5g of hcl solution per liter solution?
All you have to do is convert the 6.5 g HCl solution into moles, and then plug that value into the molarity formula. If you need help, here are the formulas: # mol = (mass of substance)/(molar mass) - the molar mass is just the molecular mass of the substance expressed in grams :) Molarity (M) = (# mol solute)/(# L solution) - the solute, in this case, is the HCl, and the solution is just one, based on your question Happy Calculating!!!
Standardization of hcl solution with primary standard na2co3 solution?
To standardize an HCl solution with a primary standard Na2CO3 solution, first, prepare a Na2CO3 solution of known concentration. Then, titrate the Na2CO3 solution with the HCl solution using a suitable indicator until the equivalence point is reached. From the volume of HCl solution used and the known concentration of Na2CO3, you can calculate the exact concentration of the HCl solution.
Standardization of Hcl using Borax?
You can standardize a hydrochloric acid (HCl) solution using borax (sodium borate) by titrating a known concentration of HCl with a solution of borax. The reaction between HCl and borax can be used to determine the exact concentration of the HCl solution. By accurately measuring the volume of the titrant and using stoichiometry, you can calculate the concentration of the HCl solution.
What is the molarity of 32 percent HCl?
Ah, what a lovely question! To find the molarity of 32% HCl, you first need to know the density of the solution. Then you can use the formula: Molarity = (% concentration / molar mass) / density. Remember, it's all about taking your time and enjoying the process of solving this little mystery. Happy calculating!
Calculate 0.5 M HCL?
0.5 M HCl means the concentration of hydrochloric acid is 0.5 moles per liter of solution. To calculate this, you need to use the formula: moles = molarity x volume (in liters). So, if you have, for example, 1 liter of 0.5 M HCl solution, you would have 0.5 moles of HCl in that solution.
What is theoretical pH value for 1 m hcl solution?
The theoretical pH value for a 1 M HCl solution is 0. This is because HCl is a strong acid that completely ionizes in water to form H+ ions, resulting in a high concentration of H+ ions in the solution and a low pH value.
Calculate the molarity of a hydrochloric acid solution that is 18.25 percent HCl by mass and has a density 1.2gmL?
First, calculate the mass of HCl in 100 g of the solution: 18.25% of 100 g is 18.25 g. Convert the volume to liters: 1.2 g/mL = 1.2 kg/L. Calculate molarity using the formula Molarity (M) = (moles of solute)/(volume of solution in liters), where moles of solute = mass of HCl in grams / molar mass of HCl and volume of solution = mass of solution in grams / density of solution in g/mL.
What is the molarity of an hcl solution if 7ml hcl solution is titrated with 27.6ml of 0.170m of naoh solution?
The balanced chemical equation for the reaction is: HCl + NaOH -> NaCl + H2O. From the equation, it is a 1:1 mole ratio reaction. Therefore, the moles of HCl can be calculated from the volume and concentration of NaOH used in the titration. Then, use the moles of HCl and the volume of HCl solution used to calculate the molarity of the HCl solution.
How do you prepare 2M HCl solution from liquid HCl?
To prepare a 2M HCl solution from liquid HCl, you need to calculate the volume of the liquid HCl required. Since the concentration of the stock solution is not provided, you can use the formula C1V1 = C2V2, where C1 is the concentration of the stock solution, V1 is the volume of the stock solution needed, C2 is the desired final concentration (2M), and V2 is the final volume of the solution (usually 1 liter). Once you calculate the volume needed, carefully dilute the liquid HCl with distilled water in a volumetric flask to reach a total volume of 1 liter. Be cautious when handling concentrated HCl as it is corrosive and can cause burns.
A solution containing 3.76 g naoh in 361 ml water is titrated with 491 ml hcl what is the concentration of hcl in the original solution?
Given that the amount of NaOH is known, and the volume of HCl required for titration can be measured, you can calculate the concentration of HCl by using the balanced chemical equation and stoichiometry. The concentration of HCl in the original solution can be determined by dividing the moles of NaOH used in the reaction by the volume of HCl used. This calculation will yield the molarity of HCl in the original solution.
