In a lab experiment, 8.21g of phosphorus reacts with bromine to form 71.75 g of phosphorus tribromide. (a) Calculate the percentage by mass of P in phosphorus tribromide. 4.0 11.44 % (b) How many grams of bromine reacted? 4.0 Enter a number with the correct number of significant figures. How do you know? O law of constant composition law of multiple proportions law of conservation of mass O law of definite proportions
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
![In a lab experiment, 8.21g of phosphorus reacts with bromine to form 71.75 g of phosphorus tribromide.
(a) Calculate the percentage by mass of P in phosphorus tribromide.
4.0 11.44
%
(b) How many grams of bromine reacted?
4.0
Enter a number with the correct number of significant figures.
How do you know?
O law of constant composition
law of multiple proportions
law of conservation of mass
O law of definite proportions](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F836dbaf3-54c0-43cf-9b73-db659c8b13ef%2Fa3e3d0b5-dd7e-40f0-a2c7-5d5646dd230d%2Fnjzfitk.jpeg&w=3840&q=75)
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