The reaction between potassium superoxide, KO2, and CO2, 4 KO2+2 CO2 → 2 K2CO3+3 O2 is used as a source of and absorber of CO2in self- contained breathing equipment used by rescue workers.

How many moles of O2 are produced when 451 mL in a .518 M solution of KO2 reacts in this fashion?

How many grams of KO2 are needed to form 44 g of O2?

What volume of a 0.424 M CO2 solution are needed to produce 63.58 mL of 0.731 M solution of K2CO3?

PLEASE ANSWER FAST ITS A QUIZZ

The second and last option are the answers

Adialysis unit requires 78.5 l of water.the estimated digit is 5. 

Following are the  advantages of the parametric equations: 1) they can be used to graph curves that are not functions, like the unit circle.2) the parameter can be used to represent the quantity that is  useful to  provide us with better information about the graph.3)  it is useful to convert between rectangular equations and parametric equations.with specific reference to chemistry,  parametric equations are employ for solving hydrogen and hydrogen-like ions, quantum mechanically. herein, cartesian coordinates are converted in spherical polar coordinates. the solution obtained, when plotted on spherical polar graph paper, provides visualization of atomic orbital such as s,p,d and f. 

Hcn is your answer my guy : )