the mass of 3 PB tablets was measured to be 3.1398 g. The tablets were crushed, and 2.9551 g of the powder was transferred to a beaker and reacted with HCl. After filtration, the filtrate was transferred to a 50-mL volumetric flask and diluted with water. 10.00 mL of this stock solution was combined with 0.2 M Na3PO4. The resulting precipitate weighed 0.2798 g after drying. The mass of BSS per tablet is

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion