The aim of this exercise is to determine the percentage (degree) of acetic acid in vinegar. For this purpose 10 mL of vinegar requires 8mL of sodium hydroxide of molar concentration

0.1mol/L to react with the acetic acid present.

The equation of the reaction is :

CH3COOH + OH- -> CH3COO- + H2O

a- Find the mass of acetic acid present in 10mL vinegar

b- Find the percentage of acetic acid in vinegar.

Given: M (CH3COOH) = 60 g/mol

Density of vinegar = 1.02g/mL​

the answer is d   for sure : )

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.