The percent of water in an unknown hydrated salt is to be determined by weighing a sample of the salt heating it to drive off the water cooling to room temperature and re-weighting. Which procedural mistake will explain a determined very low % of water. I.  Heating the sample in a closed rather than an open container II.  Re-weighting the sample before it has cooled to room temperature. I only Both I and II II only Neither I nor  II

Q: In which of the following solvent the substance CH3NH2 will be most soluble?   A. CH3CH2CH2CH3…

A: Solubility of methyl amine in the given solvent systems.

Q: A solution of KCIO3 has 40 grams of the salt dissolved in 200 grams of water at 50 °C. Approximately…

A:

Q: ] mean ___________. mole fraction mole percent molarity…

A:

Q: Which statement is NOT correct for an azeotropic mixture of two volatile liquids? a. Azeotropic…

A: Please find your solution below : Azeotropic mixture is also known as constant boiling point…

Q: Use the graph to the right to answer the next three questions: Solubility Curves 150 12. If 100 g of…

A: Answer:- This question is answered by using the simple concept of solubility and using the given…

Q: 28. Indicate the types of Inter-molecular interaction between the following molecules. a. the H. H.…

A: Intermolecular forces are the forces between the molecules of compound. These forces depends on the…

Q: Michele has three samples of a mixture of pure benzoic acid and pure acetanilide and needs to…

A: Melting occurs when the compound is at the temperature where the liquid phase is in equilibrium with…

Q: How are excess solutions treated prior to disposal (what happens to the solutions collected in the…

A: Marine life is adversely affected by low or very high pH values. Below pH 5, most fish are unable to…

Q: Examine the solubility chart below and answer questions 5-12 a00 Sugar 200 KNO, 220 180 NANO, 140…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Calculate number of grams required to prepare: a.     250mL of a 1.2M (NH4)2SO4 solution. b.…

A: Given, 250. mL of a 1.2M(NH4)2SO4 solution.1.50 Liter of a 4.7 x 10-2 M H3PO4 solution

Q: Analysis: 1. Which compound has higher solubility in water? a. A polar compound or a nonpolar…

A: Wate is a polar molecule due to Electronegativity difference of Oxygen and Hydrogen.

Q: 28. A solution contains 125 g of a compound and 555 g water.   The boiling point  of the pure…

A: We have to predict the molar mass of compounds.

Q: A 551 ml container of 70% (v/v) Isopropanol (rubbing alcohol) contains how many mL of isopropanol?…

A: The volume of isopropanol is to be calculated

Q: Why is it important to know if a substance is a molecular compound or an ionic compound before…

A: We have to discuss  the   importantance of   a molecular compound or an ionic compound for…

Q: 1. Listed below are solubility-vs.-temperature data for an organic substance A dis- solved in water.…

A: (a) graph can simply be drawn using table data as follows.

Q: A 0.25 g sample of an unknown solid is dissolved in 8.85 g of cyclohexane. The change in the…

A: We can calculate the molality of the solute in the solution by using the relation of depression in…

Q: A solution is prepared by dissolving 38.2 ml of ethanol in 100 ml water at 25 C. The final volume of…

A:

Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.