During part i of the water analysis series, you prepared a stock solution of phosphate ion containing 50.0 mg p/l. in the second part of this experiment, you will use this stock solution to prepare standard solutions to be used to make a calibration plot. as described in the background information for this experiment, the concentration of phosphorus in these standards should be between 0 mg /l (solution a)and 0.6 mg/l (solution c). a. describe how you are going to prepare solution c, which must contain 0.3 mg p/l. assume you are going to use a 250-ml volumetric flask for this preparation. be sure to include necessary calculations !

Someone offer some answers to this, i will give 98 coins and mark as brainliest! i will put the rest of the lab down in the comments,solutions pre-lab questions: in this lab, you will make fruit drinks with powdered drink mix. complete the pre-lab questions to get the values you need for your drink solutions. calculate the molar mass of powered fruit drink mix, made from sucrose (c12h22o11).using stoichiometry, determine the mass of powdered drink mix needed to make a 1.0 m solution of 100 ml. (hint: use molarity = to find the moles of drink mix, then convert moles to grams using a mole conversion.)what mass of powdered drink mix is needed to make a 0.5 m solution of 100 ml?

Why is the melting of ice a physical change ?

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car