Table of Contents
How does change in temperature affect molarity?
As molarity is dependent on volume (mol/L) and volume rises as temperature does, molarity is inversely proportional to temperature. As temperature increases, volume also increases, which means that it will decrease the number of moles per litre. So, molarity decreases as the temperature increases.
How are 0.5 m NaOH and 0.5 m NaOH different from each other?
No, these are different. In representing the concentration of a solute as moles, the volume of the solution is not considered. Thus, 0.5 mole of NaOH represents simply 20 g of the base while 0.5 M means 20 g of the base or NaOH dissolved per litre of the solution.
What is the approximate pH of a 0.5 M solution of NaOH?
Consider the titration curve, in which an acid is treated with aqueous 0.5M NaOH. The pH at the equivalence point was found to be 8.9.
What is the pH of 0.1 m NaOH?
13
Hence, the pH of 0.1 M NaOH is 13.
What is the effect of a solution on change in temperature?
As the temperature of a solution is increased, the average kinetic energy of the molecules that make up the solution also increases. This increase in kinetic energy allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions.
How does temperature affect solution?
As the temperature of a solution increases, the average kinetic energy of the solvent molecules increases. This increase in kinetic energy allows the solvent molecules more effectively to separate the solute molecules that are held together by intermolecular attractions.
What is the difference between 0.5 moles and 0.5 m?
Answer Expert Verified 0.5 mole NaOH means :- 0.5 × 6.023 x 10²³ molecules present in this compound . but 0.5 M means :- 0.5 mole of NaOH present in one litre of solution . this means strength of NaOH.
How are 0.05 m and 0.05 m KOH different from each other?
Molarity(M) is defined as the no. of moles of solute dissolved in 1 litre of the solution. So, 0.5 m KOH means that 0.5 moles of solute i.e. KOH has been dissolved in 1 kg of the solvent. Whereas, 0.5 M KOH means that 0.5 moles of solute i.e. KOH is present in 1 litre of the solution.
What is the pH of a .025 M solution of NaOH?
The pH is about 12.7.
What is the pH of a 0.015 M NaOH solution?
12.2
NaOH is a strong base, and it is considered to be dissociated completely. Thus, the concentration of hydroxide ion is 0.015 M. Therefore; the pH is 12.2.
What happens when HCL and NaOH are mixed in calorimeter?
This page is under construction. Compare the temperature change when 50 mL of 1.0 M of HCl and 50 mL of 1.0 M NaOH are mixed in a calorimeter to the the temperature change when 50 mL of 3.0 M of HCl and 50 mL of 3.0 M NaOH are mixed in a calorimeter.
What is the initial temperature of TI in HCl NaOH?
The initial temperature of the system (Ti) is 20.1°C, whereas the final temperature (Tf) is 23.4°C. Assume that the density (p) of both 0.5 M HCl and 0.5 M NaOH solutions is 1.0 g mL-1, and that the specific heat capacity (Cp) is 4.183 J g-1 K-1.
What is the formula for heat capacity of NaOH and HCl?
HCl (aq) + NaOH (aq) → NaCl (aq) + H2O (l) + heat. Since theses are dilute solutions and are mostly water, assume that the densities of the solutions and the specific heat capacities of the solutions are approximately 1.0 g/ml and 4.18 J/g°C, respectively.
How do you make a solution of NaOH in water?
To make 0.5 M of NaOH, measure 20 g of sodium hydroxide and dissolve it in 1000 ml of water; we have used 20 g because the RMM [relative molar mass] of NaOH is 40 and we are making 0.5 M solution.