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What is the resulting molarity of a solution made by mixing equal volumes of solutions of HCl and NaOH each of molarity 1M?
As a thought experiment - suppose you mixed one liter of 1M HCl with 1 liter of 1M NaOH. The resulting solution (neglecting any density changes associated with mixing) would contain 2 liters with 1 mole of Cl- and 1 mole of Na+ with the balance being water (the H+ from the HCl and the OH- from the NaOH would just become part of the water). This would give you a 0.5 M solution of NaCl.
What else can I help you with?
What is sequential dilution?
In a sequential solution different volumes of a stock solution is added to varying volumes of solvent to create new solutions of specific concentration. Mostly use to create lower concentration of solutions.
When 100. ml of when 100. ml of 0.125 m hcl is diluted to 250. ml the resulting molarity of the hcl solution i0.125 m hcl is diluted to 250. ml the resulting molarity of the hcl solution i?
Molarity = mole of solute/liter of solution. The unit for molarity is mol/L, and is abbreviated M or molar. Use the equation below, where M1 and M2 are molarity, and V1 and V2 are volume. The volumes given in mL must be converted to liters (L) by multiplying mL by 1 L/1000 mL. For example: 420 mL x 1 L/1000 mL = 0.420 L (The decimal is moved to the left three spaces.)M1V1 = M2V2, where M1=0.125 mol/L, V1=100. mL = 0.100. L, V2 = 250. mL = 0.250. L., M2 is unknown.Rearrange the equation to isolate M2. Plug in the known data and solve.M2 = (M1V1)/(V2)M2 = (0.125 mol/L x 0.100. L)/(0.250. L) = 0.05 mol/L = 0.050 M HCl
How is molarity measured?
In moles of substance dissolved in 1 L of water -Apex
What is the pH when you mix ph4 with ph8?
When mixing a solution at pH 4 with a solution at pH 8, the final pH will be between 4 and 8. The resulting pH will depend on the ratios of the two solutions being mixed. If equal volumes are mixed, then the final pH will likely be around 6.
What is the molarity of a sodium hydroxide solution made by combining 2.0 L of 0.60 M NaOH with 495 mL of 3.0 M NaOH Assume the volumes of the two solutions to be additive.?
2.0 L x 0.60 mol/L = 1.2 moles NaOH0.495 L x 3.0 mol/L = 1.485 moles NaOHTotal moles NaOH = 2.685 moles NaOHTotal volume = 2.0 L + 0.495 L = 2.495 LFinal concentration of NaOH = 2.685 moles/2.495 L = 1.076 M = 1.1 M (to 2 significant figures)
When a solution of an acid reacts with a solution of a base the pH of the resulting solutions depends on what?
It depends on the volumes, concentrations and nature of the acid and base.
Why don't chemists use percent by volume to prepare and describe many solutions they use?
Chemists typically use percent by weight or molarity to prepare and describe solutions because these measures are more accurate and reflective of the actual concentration of solute in the solution. Percent by volume can fluctuate with temperature changes and can be affected by differences in the volumes of the solute and solvent, making it less precise for analytical purposes.
What is sequential dilution?
In a sequential solution different volumes of a stock solution is added to varying volumes of solvent to create new solutions of specific concentration. Mostly use to create lower concentration of solutions.
How do you prepare solution of different concert ration?
Take solution and mix different volumes with water as the final volume of all solutions is same
Why don't chemist use percent by volume to prepare and describe many solutions they use?
some liquid volumes are not additive, leading to potentially confusing final solution volumes.
When 100. ml of when 100. ml of 0.125 m hcl is diluted to 250. ml the resulting molarity of the hcl solution i0.125 m hcl is diluted to 250. ml the resulting molarity of the hcl solution i?
Molarity = mole of solute/liter of solution. The unit for molarity is mol/L, and is abbreviated M or molar. Use the equation below, where M1 and M2 are molarity, and V1 and V2 are volume. The volumes given in mL must be converted to liters (L) by multiplying mL by 1 L/1000 mL. For example: 420 mL x 1 L/1000 mL = 0.420 L (The decimal is moved to the left three spaces.)M1V1 = M2V2, where M1=0.125 mol/L, V1=100. mL = 0.100. L, V2 = 250. mL = 0.250. L., M2 is unknown.Rearrange the equation to isolate M2. Plug in the known data and solve.M2 = (M1V1)/(V2)M2 = (0.125 mol/L x 0.100. L)/(0.250. L) = 0.05 mol/L = 0.050 M HCl
How is molarity measured?
In moles of substance dissolved in 1 L of water -Apex
What is wrong with how David tested his hypothesis?
David did not measure the solutions' volumes before mixing the solutions.
What is the pH when you mix ph4 with ph8?
When mixing a solution at pH 4 with a solution at pH 8, the final pH will be between 4 and 8. The resulting pH will depend on the ratios of the two solutions being mixed. If equal volumes are mixed, then the final pH will likely be around 6.
What is the molarity of a sodium hydroxide solution made by combining 2.0 L of 0.60 M NaOH with 495 mL of 3.0 M NaOH Assume the volumes of the two solutions to be additive.?
2.0 L x 0.60 mol/L = 1.2 moles NaOH0.495 L x 3.0 mol/L = 1.485 moles NaOHTotal moles NaOH = 2.685 moles NaOHTotal volume = 2.0 L + 0.495 L = 2.495 LFinal concentration of NaOH = 2.685 moles/2.495 L = 1.076 M = 1.1 M (to 2 significant figures)
What is the percentage of volume?
Volume percent (v/v %) is defined as: volume percent = [(volume of solute) / (volume of solution)] x 100% Volume percent is handy when preparing solutions of liquids. Concentration of a solution can be stated in volume percentages. Be aware that volume of solution is in formula denominator, not volume of solvent. Thus to get 10% v/v solution of ethanol in water you can take 10 ml of ethanol and add enough water to have total 100 ml of resulting solution. It is worth to mention volumes of solute and solvent cannot be simply added to get volume of solution. For instance if you add 10 ml of ethanol to 90 ml of water the volume of the solution will be less than 100 ml.
Why solutions cannot be stored in volumetric flask?
Volumetric flasks are designed to hold specific volumes of liquid accurately for dilution or mixing purposes. Storing solutions in a volumetric flask can lead to evaporation, contamination, and inaccuracies in concentration due to the narrow neck of the flask making it difficult to access the solution for further use. It is best to store solutions in appropriate containers designed for long-term storage.
