2.38 grams of uranium is heated in a current of air. The resulting oxide
weighs 2.806 grams. When solving for empirical formula, the simplest
molar ratio of uranium is 1.
TRUE or
FALSE

Explanation:

The empirical formula is the simplest whole-number ratio of atoms in a compound.

The ratio of atoms is the same as the ratio of moles.

So, our job is to calculate the molar ratio of U to O.

Data:

     Mass of U = 2.38   g

Mass of UₓOy = 2.806 g

Calculations

1. Calculate the mass of O

Mass of O = 2.806 g - 2.38 g = 0.426 g

2. Calculate the moles of each element

3. Calculate the molar ratio of the elements

Divide each number by the smallest number of moles

U:O = 1:2.663 = 3:7.988 ≈ 3:8

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.