Identify the properties of the components of a mixture

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.

What is the formula of the ionic compound composed of calcium cations and chloride anions