How many grams of KNO3 are present in 185 mL of a 2.50 M solution?

46.71g

Explanation:

First, we'll begin by calculating the number of mole of KNO3 present in the solution. This is illustrated below below:

Data obtained from the question:

Molarity = 2.50 M

Volume = 185 mL = 185/1000 = 0.185L

Mole =?

Molarity = mole /Volume

Mole = Molarity x Volume

Mole = 2.5 x 0.185

Mole = 0.4625 mole

Now we can obtain the mass of KNO3 as follow:

Molar Mass of KNO3 = 39 + 14 + (16x3) = 39 + 14 + 48 = 101g/mol

Number of mole of KNO3 = 0.4625 mole

Mass of KNO3 =?

Mass = number of mole x molar Mass

Mass of KNO3 = 0.4625 x 101

Mass of KNO3 = 46.71g

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.

the objects have the same charge is correct.

nathan lee