A student wants to determine the empirical formula for titanium sulfide (TixSy). To do so, she reacted titanium with excess sulfur in a crucible, and recorded the following data: Mass of Crucible: 11.120 g Mass of titanium used: 8.820 g Mass of Crucible and product: 31.700 g what is the empirical formula of titanium sulfide based on her experiment?

 The empirical formula is

Explanation:

Mass of Titanium (Ti) = 8.820 g

Mass of  product = (mass of Crucible and product) - mass of crucible = 31.700 g - 11.120 g = 20.58 g

Mass of sulphur (S) = mass of product - mass of titanium = 20.58 g - 8.820 g = 11.76 g

Step 1 : convert given masses into moles

Moles of Ti =

Moles of S=

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For Ti =

For S =

Thus the ratio of Ti : S = 1: 2

Hence the empirical formula is

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.