The amount of water needed to dissolve 25kg of salt depends on the concentration of the salt solution desired. In general, 25kg of salt would require more than 25kg of water to fully dissolve, as salt has a limited solubility in water. Additional water would be needed to create a saturated salt solution.
if we dissolve a starch in water it forms a colloidal solution and the particle size is much larger to completely dissolve in water
As much table salt as you can stir in the boiling water until no more salt will dissolve. You will see salt dissolve once you stir some table salt in the boiling water, hot tap water is unsufficient.
Margarine does not dissolve in juice for pretty much the same reason that oil and water don't mix.
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'Phobic' means 'have fear' and 'philic' means 'love to', so you might deduce your answer to: materials 'loving water' will dissolve much better.
The force needed to accelerate an object is given by the formula: force = mass x acceleration. For the bowling bowl with a mass of 25kg and acceleration of 2m/s^2, the force required would be 50 Newtons.
if we dissolve a starch in water it forms a colloidal solution and the particle size is much larger to completely dissolve in water
250 g
Hot water because the heat helps to dissolve the sugar.
2.5 g of Nacl is to be dissolve in 100ml of water gives 10ppm of Na solution.
They will dissolve much quicker in warm or hot water than in cold water.
At 20°C (room temp.) 35.9g NaCl (salt) will dissolve in 100g of H2O (water).
That will depend very much on what is being dissolved and what it is being dissolved in. Water will dissolve many substances to a greater or lesser degree. For example, salt will dissolve easily in water but there is a limit on just how much will dissolve in a given volume of water and when the water will not allow any more to be dissolved in it, the salt water solution is said to be saturated.
25kg
Much faster in boiling water.
depends on how much sugar u put in the water
Your question is a little vague. Are you using the flour as a thickening agent? If so just dissolve 4-5 teaspoons of cornstarch into cold water and add it slowly to your sauce, stiring constantly until you get the desired thickness. You can always dissolve more into cold water and add as needed. Corn starch is much more effective thickener than flour, so usually much less is needed.