Which parameter is measured by determining the drop in dissolved oxygen in a sealed water or wastewater sample for a fixed number of days?     microbial count     COD     BOD     phosphorus     nitrogen

Q: The solubility of barium hydroxide, Ba(OH)2 in water is 6.9 g/L. Calculate Ksp

A: All known compounds can be dissolve in certain solvents whereas they remain insoluble in other…

Q: 1. A 0.68 gram sample of a volatile liquid was heated to 358 K. The gas occupied 265 mL of space at

A: Note: Dear student as per the guidelines only the 1st quetions  is allowed to answer. from ideal gas…

Q: 100 90 NANO, 80 70 60 CaCl 50 Pb(NO)2 40 KCI NaCl 30 20 10 KCIO, Se,(SO,) 10 20 30 40 50 60 70 80 90…

A: Given :  At 90°C, 20g of potassium chromate is dissolved. How much more can be dissolved to make a…

Q: A 0.1ml serum sample was analyzed for glucose content and found to contain 250 ng. The concentration…

A: Given that:  Volume of serum sample = 0.1ml =0.1ml×1L/1000ml = 10-4L Mass of glucose = 250ng =…

Q: A bubble of air escaping from a diver's mask rises from a depth of 159 ft to the surface where the…

A: Density is given as the mass of a substance per unit volume. Density is directly proportional to the…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.