Question

What is the formula of potassium phosphate in $gram\, \cdot mo{l^{ - 1}}$ ?

Answer 1

Potassium phosphate is a salt that is used as a fertiliser and food additive. It is also known as potassium phosphate monobasic or potassium biphosphate. Potassium phosphate can be found in live organisms as part of certain metabolic pathways, as well as in ores and minerals.

Complete answer:
Potassium phosphate has the following formula: ${K_3}P{O_4}$
Its relative formula mass is $212.2663gmo{l^{ - 1}}$
Explanation:
You may find the formula mass by adding up the relative molecular masses of each species in the formula unit, which I believe is what you were seeking for in the first place.
$3\left( {39.0983} \right) + 30.9738 + 4\left( {15.999} \right) = 212.2663gmo{l^{ - 1}}$

Additional information:-
Phosphorus is a naturally occurring element that plays a crucial role in the body's cells. Phosphorus is found in all body cells and is necessary for cell and tissue growth and repair.
Hypophosphatemia is treated or prevented using potassium phosphate (low blood levels of phosphorus). Potassium phosphate is occasionally added to intravenous (IV) fluids given to patients who are unable to eat or drink
Potassium Phosphate $\left( {KP} \right)$ is an inorganic chemical that is used as a laxative, dietary supplement, and electrolyte replacement. Phosphate, the most abundant intracellular anion, is involved in energy storage, osteoblastic and osteoclastic activity, serum calcium concentration regulation, and a variety of cellular phosphate-transfer events. Potassium phosphate improves the fluidity of intestinal contents by retaining water through osmotic pressures, causing intestinal smooth muscle constriction indirectly.

Note:
If you have high potassium levels in your blood (hyperkalemia), low calcium levels in your blood (hypocalcemia), or high phosphorus levels in your blood, you should avoid using potassium phosphate (hyperphosphatemia).