Achemist measures the amount of oxygen gas produced during an experiment. he finds that 11.5 g of oxygen gas is produced. calculate the number of moles of oxygen gas produced.

0.359 moles.

Explanation:

The oxygen gas has a molecular formula O2. In table periodic, the molar mass of one atom of oxygen is 16 g/mol, so the molar mass of O is 32 g/mol.

Molar mass, mass and number of moles are related by the equation below:

Where n is the number of moles, m is the mass, and MM is the molar mass of the compound.

So, for 11.5 g of O2 produced:

n = 0.359 moles

a) the particles of the chair are strongly held together.

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.