QUESTION I: CALCULATE SOLUBILITY (CONCENTRATION) OF AGCL IF THE SPECIFIC CONDUCTANCE AND MOLAR CONDUCTIVITY OF SILVER CHLORIDE SALT ARE 1.41×10-4 S CM-1 AND 138.26 S.CM2.MOL-1, RESPECTIVELY.CALCULATE SOLUBILITY (CONCENTRATION) OF AGCL IF THE SPECIFIC CONDUCTANCE AND MOLAR CONDUCTIVITY OF SILVER CHLORIDE SALT ARE 1.41×10-4 S CM-1 AND 138.26 S.CM2.MOL-1, RESPECTIVELY.CALCULATE SOLUBILITY (CONCENTRATION) OF AGCL IF THE SPECIFIC CONDUCTANCE AND MOLAR CONDUCTIVITY ... Read more

1. WHICH OF THE FOLLOWING PAIRS OF MOLECULES AND THEIR MOLECULAR GEOMETRIES IS WRONG? a. NF3 - trigonal planar b. H2O – bent c. BF3 - trigonal planar d. AsF5 - trigonal bipyramidal 2- WHICH OF THE FOLLOWING STATEMENTS IS TRUE? a. The total number of molecular orbitals formed doesn’t always equal the number of atomic b. A bond order ... Read more

1-Why diamond is stronger than graphite? 2- What is the hybridization in graphite? 3- Mention the boron compounds. Read more

—What are the symmetry elements and the point group of the following: —CHCl3 —AlF3 —CCl4 —H2S —PH3 Read more

1- The wavelength of a laser pointer is reported to be 500nm. What is the frequency of this light? 2- If ml has values of (0) and (-1, 0, +1). write the corresponding value of n and l. 3- Which atomic orbitals has values of n = 4 and l = 2? 4- Calculate the wavelength (in nm) of a ... Read more

1-In an ELECTROLYTIC cell the electrode at which the electrons enter the solution is called the ______ ; the chemical change that occurs at this electrode is called _______. (a) anode, oxidation (b) anode, reduction (c) cathode, oxidation (d) cathode, reduction (e) cannot tell unless we know the species being oxidized and reduced. 2. Which of the following statements is ... Read more

Write a report about determination of molecular whieght of nonvolatile material. Read more

Write a report about the melting point of organic material. Read more

WHAT IS THE POH OF A 6.50 X 10-3 M HF? WHAT IS THE POH OF A 6.50 X 10-3 M HF? WHAT IS THE POH OF A 6.50 X 10-3 M HF? Read more

1- THE OUTER SHELL ELECTRONS OF OXYGEN (O) ARE......: A. 3. B. 4. C. 5. D. 6. 2- THE ANGLE BETWEEN BONDS OF WATER MOLECULE H2O IS?2- THE ANGLE BETWEEN BONDS OF WATER MOLECULE H2O IS?2- THE ANGLE BETWEEN BONDS OF WATER MOLECULE H2O IS? A. 109.50 B. 104.50 C. 1800 D. 107.30 3- THE TYPE OF HYBRIDIZATION OF SF4 ... Read more