Answer : The mass of potassium phosphate needed will be 3.98 grams.
Explanation : Given,
Molarity of potassium phosphate = 0.75 M = 0.75 mole/L
Molar mass of potassium phosphate = 212.27 g/mole
Volume of solution = 25.0 mL = 0.025 L (conversion used : 1 L = 1000 mL)
Molarity : It is defined as the number of moles of solute present in one liter of solution.
In this problem solute is, potassium phosphate.
Formula used :
Now put all the given values in this formula, we get:
Therefore, the mass of potassium phosphate needed will be 3.98 grams.
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Conditions such as high pressure and high temperature must occur.
E.) The shape of molecule which can form 3 bonds and no lone pair of electrons on central atom is trigonal planar.