Write balanced equations for all the reactions in the catabolism of glucose to two molecules of glyceraldehyde 3-phosphate (the
preparatory phase of glycolysis), including the standard free-energy change for each reaction. Then write the overall or net equation for the preparatory phase of glycolysis, with the net standard free-energy change.
In order to calculate the final volume of the gas, we may apply Charles Law, which states that for a fixed amount of gas subject to a fixed amount of pressure, the volume and temperature of a gas are directly proportional. This is: V/T = constant Using this equation, 5/298 = V/278 V = 4.66 L
The molar mass of dextrose is obtained as shown. Then the formula for number of moles is applied as shown in the image. Number of moles= mass/molar mass= concentration × volume. The volume is measured in dm3 hence the denominator of 1000. By making mass of solute the subject of the formula, we obtain the mass of dextrose requited to prepare the desired concentration of solution in the desired volume.