Hexane burns in air to form carbon dioxide and water. The oxygen is store at 40.0 Celsius and at a pressure of 106.6kPa. How many moles of oxygen will react with 500. Grams of hexane

55.233 moles of oxygen will react with 500 g of hexane.

Explanation:

To calculate the number of moles, we use the equation:

Given mass of hexane = 500g

Molar mass of hexane = 86 g/mol

Putting values in above equation, we get:

The chemical equation for the reaction of burning of hexane in air follows:

By stoichiometry of the reaction:

2 moles of hexane reacts with 19 moles of oxygen

So, 5.814 moles of hexane will react with = of oxygen

Hence, 55.233 moles of oxygen will react with 500 g of hexane.

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.