A) they (somewhat foolishly) only did one experiment: 1) they pipetted 25.0 ml into a pre-weighed erlenmeyer flask (mass flask plus stopper = 56.632 g) and obtained the mass of the flask, stopper, and liquid as 79.524 g. the stencil on the side of the pipet states the uncertainty as± 0.05 ml and the documentation for the analytical balance says its uncertainty is ± 1 mg. calculate the density of the liquid and either the relative uncertainty or the absolute uncertainty in the density obtained

What is the relation between concentration of reactants and the rate of chemical reaction?

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.