The solubility of potassium nitrate is 40 at 30 degree celcius. Calculate the mass of water required to make a saturated solution by dissolving 15 gram of potassium nitrate at that temperature.
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To calculate the mass of water required to make a saturated solution, you need to determine the maximum amount of potassium nitrate that can dissolve in a given amount of water at a specific temperature (in this case, 30 degrees Celsius).
The solubility of potassium nitrate is given as 40g at 30 degrees Celsius. This means that 40g of potassium nitrate can dissolve in 100g of water at this temperature.
To find the mass of water required to dissolve 15g of potassium nitrate, you can set up a proportion using the solubility values:
40g potassium nitrate / 100g water = 15g potassium nitrate / x grams water
To solve for x, cross-multiply and divide:
40g potassium nitrate * x grams water = 15g potassium nitrate * 100g water
x grams water = (15g potassium nitrate * 100g water) / 40g potassium nitrate
x grams water = 37.5g
Therefore, you would need 37.5 grams of water to dissolve 15 grams of potassium nitrate and make a saturated solution at 30 degrees Celsius.
To calculate the mass of water required to make a saturated solution with 15 grams of potassium nitrate at 30 degrees Celsius, we need to use the solubility data.
The solubility of potassium nitrate is given as 40g at 30 degrees Celsius. This means that 40 grams of potassium nitrate can dissolve in 100 grams of water at this temperature.
We can set up a proportion to find the mass of water required to dissolve 15 grams of potassium nitrate:
Mass of potassium nitrate / Mass of water = Solubility of potassium nitrate / 100
Substituting the given values:
15g / Mass of water = 40g / 100
Cross-multiplying:
15g * 100 = Mass of water * 40g
1500g = 40g * Mass of water
Dividing both sides by 40g:
Mass of water = 1500g / 40g
Mass of water = 37.5g
Therefore, to make a saturated solution with 15 grams of potassium nitrate at 30 degrees Celsius, you will need 37.5 grams of water.