A compound is analyzed and found to contain 36.70% potassium, 33.27% chlorine, and 30.03% oxygen. What is the empirical formula of the compound?

1. a) Binary ionic and binary molecular compounds have what two things that are similar in their composition? (b) What is one way they are different in their composition?

A 1 liter solution contains 0.227 M acetic acid and 0.302 M potassium acetate. Addition of 0.113 moles of sodium hydroxide will: (Assume that the volume does not change upon the addition of sodium hydroxide.)

Why there is a dip in electronegativity for the elements Mn and Zn?

What would likely happen if you were to touch the flask in which an endothermic reaction occurring

Lithium has 2 stable isotopes Li-6 and Li-7. One of them has an abundance of 92.5% and the other has an abundance of 7.5%. Knowing the atomic mass of lithium is 6.941, which is the more abundant isotope?

Suppose 30 grams of NaCl are placed in 900 mL of water. What is the molarity of this solution?

After a particularly cold day outside you go home to make some tea. you heat the water in the mug so that botch are about 75 degrees celcious. the tea bag is only 30 degrees celcious and the room is around 26 degrees celcious.

For main-group elements using the older numbering system the group number on the periodic table corresponds to which characteristic of the elements of that group

In the vertical columns of the periodic table, as the atomic numbers increase: a. the number of electron shells increases. b. the ionization energies increase. c. the number of electrons in the valence shell increases. d.

Which of the following solutions contains the largest total concentration of ions, assuming complete dissociation .010 M aluminum chloride .010M sodium chloride .010M aluminum sulfate .010M calcium chloride