What is the mass, in grams, of 0.00948\,\text {mol}0.00948mol0, point, 00948, start text, m, o, l, end text of phosphoric acid?

0.929g

Explanation:

The following were obtained from the question.

Number of mole of phosphoric acid (H3PO4) = 0.00948mol.

Mass of H3PO4 =?

The mass in grams of phosphoric acid (H3PO4) can be obtained as follow:

Number of mole of H3PO4 = 0.00948mol.

Molar Mass of H3PO4 = (3x1) + 31 + (16x4) = 3 + 31 + 64 = 98g/mol

Mass of H3PO4 =?

Mass = number of mole x molar Mass

Mass of H3PO4 = 0.00948 x 98

Mass of H3PO4 = 0.929g

Explanation:

The formula for the phosphoric acid is , whose molecular weight is . The mass in grams of the sample is computed afterwards:

- aluminum and copper chloride.

- the chloride ion to separate the aluminum from the oxygen so that the aluminum can react with the copper ions (and the water molecules).

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.