A1.42-g sample of a pure compound, with formula m2so4, was dissolved in water and treated with an excess of aqueous calcium chloride, resulting in the precipitation of all the sulfate ions as calcium sulfate. the precipitate was collected, dried, and found to weigh 1.36 g. determine the atomic mass of m, and identify m.

Explanation:

M2SO4 + CaCl2 = 2MCl + CaSO4

(2M + 32 + 64)g                   ( 40 +32+ 64)g

(2M +96)g of sample makes 136 g of calcium sulfate

1.42 g will make (136 x 1.42 )/ (2M + 96 )g

Given ,

(136x 1.42)/(2M +96) = 1.36

M = 23

It is sodium.

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation