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What compound is the process of dissolving in water exothermic?
The process of dissolving ammonium nitrate (NH4NO3) in water is considered endothermic, meaning it absorbs heat from the surroundings. However, an example of an exothermic dissolution process is the dissolving of sodium hydroxide (NaOH) in water. When NaOH dissolves, it releases heat, resulting in an increase in temperature of the solution.
What is the molality of a solution by dissolving 2 moles of NaOH in 10kg of water?
10kg of water contains 10l of water. So morality is 0.2mildm-3.
What is the molality of a solution made by dissolving 2 miles of NaOH in 6 kg of water?
To calculate the molality of a solution, use the formula: molality (m) = moles of solute / mass of solvent in kilograms. Here, you have 2 moles of NaOH and 6 kg of water. Therefore, the molality is 2 moles / 6 kg = 0.33 mol/kg. Thus, the molality of the NaOH solution is 0.33 m.
What is the molatity of a solution made by dissolving 6 moles of NaOH in 3 kg of water?
Molarity is defined as the number of moles of solute per liter of solution. To find the molarity of the NaOH solution, we first need to determine the total volume of the solution. Since the density of water is approximately 1 kg/L, 3 kg of water is roughly 3 L. Therefore, the molarity of the solution is 6 moles of NaOH divided by 3 L of solution, which equals 2 M (moles per liter).
Why co2 is more soluble in aqueous NAOH solution in h2o?
CO2 is more soluble in aqueous NaOH solution than in pure water because NaOH increases the solution's pH, promoting the formation of bicarbonate (HCO3-) and carbonate ions (CO3^2-). These reactions effectively remove CO2 from the gas phase, shifting the equilibrium towards more CO2 dissolving in the solution. Additionally, the ionic nature of NaOH enhances the overall solubility of CO2 by providing a favorable environment for its reaction and dissolution.
Why do we standardize the NaOH solution that we made by dissolving a measured mass of solid NaOH?
Standardizing the NaOH solution by dissolving a measured mass of solid NaOH ensures that the concentration of the solution is accurately known and consistent for use in experiments or analyses.
Is it possible to prepare a standard NaOH solution by dissolving an accurate amount of NaOH pellets in a known volume of water?
Yes, it is possible to prepare a standard NaOH solution by dissolving an accurate amount of NaOH pellets in a known volume of water. This process allows for the calculation of the concentration of the NaOH solution based on the amount of NaOH used and the volume of water.
Why is sodium hydroxide dissolving in water is a physical change?
Because the molecule of NaOH can be recovered unchanged from the solution.
How 0.1M NaOH form?
0.1 M NaOH is prepared by dissolving sodium hydroxide (NaOH) pellets or flakes in water to make a 0.1 molar solution. This means there are 0.1 moles of NaOH dissolved in 1 liter of water. The molarity of the solution is calculated using the formula: Molarity = moles of solute / liters of solution.
What compound is the process of dissolving in water exothermic?
The process of dissolving ammonium nitrate (NH4NO3) in water is considered endothermic, meaning it absorbs heat from the surroundings. However, an example of an exothermic dissolution process is the dissolving of sodium hydroxide (NaOH) in water. When NaOH dissolves, it releases heat, resulting in an increase in temperature of the solution.
What is the molality of a solution by dissolving 2 moles of NaOH in 10kg of water?
10kg of water contains 10l of water. So morality is 0.2mildm-3.
What is the molality of a solution made by a dissolving 2 moles of naoh in 6 kg of water?
0.33 mol/kg (apex)
What is the molarity of a solution made by dissolving 25 grams of Mg in excess NaOH solution?
The molarity of the solution is 0.5 M.
A one molar solution of NaOH in water contains?
One liter of a one molar solution of NaOH in water contains 40g of NaOH. The quantity must be known.
How is a solution of NaOH prepared dissolving 20g of NaOH in 500ml of distiled water solved?
To prepare a 20 g/500 mL solution of NaOH, you would gradually add 20 g of NaOH to 500 mL of distilled water while stirring until fully dissolved. It is important to add the solid to the liquid to prevent splattering. Remember to always use caution and appropriate personal protective equipment when handling NaOH due to its caustic nature.
What is the molality of a solution made by dissolving 2 miles of NaOH in 6 kg of water?
To calculate the molality of a solution, use the formula: molality (m) = moles of solute / mass of solvent in kilograms. Here, you have 2 moles of NaOH and 6 kg of water. Therefore, the molality is 2 moles / 6 kg = 0.33 mol/kg. Thus, the molality of the NaOH solution is 0.33 m.
Can we make 1N NaOH solution from 0.1N NaOH solution?
Yes, you can make a 1N NaOH solution from a 0.1N NaOH solution by diluting it 10 times. For example, to make 1 liter of 1N NaOH solution, you would mix 100 ml of the 0.1N NaOH solution with 900 ml of water.
