Real gases are modeled by the van der waals equation by considering interatomic attractions and molecular volume as follows where t is the absolute temperature, p is the pressure, vm is the molar volume, r is the gas constant, and a and b are constants specific to each gas. in contrast, the ideal gas equation pv-rt models gas particles as point masses and does not account for interatomic attractions. a) use mathematica to implement the ideal and van der waals equations of state as two-variable functions p(t, vm) for nitrogen gas (a -1.37012. bar. mol2 b 3.87 x102l. mol; r-8.314 x10-2l. bar. k-1.mol) b) use your p(t, vm) functions to generate two plots of pvs. vn in the molar volume range of o.05 l. mol-1 to 1.0l. mol and pressure range of o to 200 bar, at t127 k and t 300 k. add a title to each plot indicating the temperature value. label both axes (including units). include a legend indicating which curve corresponds to which equation of state. each curve must be rendered in a different color.

Follow the steps provided in the simulation to add water to the graduated cylinder, select one of the three samples (copper, silver, or gold), set its mass to the values given in the statements below, and calculate its density. here is a summary of the steps required: add water by clicking and holding prepare a known volume of water button. until the desired volume of water has been added. if more than the desired volume is added, click the reset button. button and redo the procedure. a single click will add about 21.0 ml of water. to set the mass, click and hold weigh out metal button. until the desired amount of metal is added to the weighing pan. once the desired mass of the metal is added, release the button. transfer the metal to water and then click on calculate density button. to see how the density is calculated using water displacement to measure the volume of the solid. to save time you can approximate the initial volume of water to â±1 ml and the initial mass of the solid to â±1 g. for example, if you are asked to add 23 ml of water, add between 22 ml and 24 ml. which metals in each of the following sets will have equal density? check all that apply.

How does a noncompetitive inhibitor reduce an enzyme’s activity?

Connect the whole numbers on the periodic table to indicate what they represent?