Answer :
Mass (g) of chlorine gas is needed to react completely with 455 g of phosphorus to form phosphorus pentachloride is 2.60×[tex]10^{3}[/tex].
What s Mass ?
[tex]P_{4} + Cl_{2}[/tex] → [tex]P CL_{4}[/tex]
Mass of [tex]CL_{2}[/tex] needed = 36.7232 mol ×70.90 g of [tex]CL_{2}[/tex] = 2.60×[tex]10^{3}[/tex]
Mass is a physical body's total amount of matter. It also serves as a gauge for the body's inertia, or resistance to acceleration (change in velocity) in the presence of a net force. The strength of an object's gravitational pull to other bodies is also influenced by its mass.
The kilogram is the primary mass unit in the SI (kg). Even though weight is frequently measured using a spring scale rather than a balancing scale and directly compared with known masses, mass is not the same as weight in physics. Due to the lower gravity on the Moon, an object would weigh less than it does on Earth while maintaining the same mass.
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