Chemistry Study Guide. Unit 18 B Study Guide Find the solubility (in mol/L) of lead(II) chloride (PbCl2) at 25oC. Ksp = 1. 62e–5. A)1. 59e–2 B)2. 53e–2 C)6. 64e–17 D)2. 01e–3 E)2. 01e–2 The two salts AgX and AgY have very similar solubilities in water. It is known that the salt AgX is much more soluble in acid than is AgY. What can be said […]

Kinetics Chemistry Lab. Rachel Smith Design Lab: Kinetics Lab Introduction: ! Background Information- Effervescent tablets reduce stomach acid and help treat upset stomachs. The familiar zzing you hear when you drop an Alka-Seltzer tablet into a glass of water is the result of a chemical reaction. After dropping the tablet into the water, the reaction causes the solid tablet to become dissolved and releases tiny […]

Chemistry in Our Daily Lives. CHEMISTRY IN OUR DAILY LIVES Chemistry In Everyday Life Chemistry in everyday life : Our entire universe is made up of matter which is constantly changing forms and evolving into other forms of energy. Chemistry is defined as the study or science of this ever changing matter. The other sciences which we study commonly like biology, physics and mathematics are […]

Chemistry and Confidential Instructions. O Level Chemistry (5070) Frequently Asked Questions Can my candidates take a dictionary / calculator into the examination? Calculators can be used in all science papers and students should take a calculator, ruler, pencil, protractor and set of compasses into all science exams. Dictionaries are not allowed. My candidates did 0K last session but I would like advice on how to […]

Chemistry 105 Practice Test: Answer Key Persuasive Essay. Chem 105 Practice Test 1 Note: There will not be this many questions on your test, I just wanted to give you as much practice as possible. Also, none of these exact questions will be on the test, just similar questions. Also, make sure you can do the homework, as I may have some questions similar to […]

B.Sc Chemistry, Zoology, Botany, English, Pak.Study, Islamiate.. INSTRUCTIONS 1. All entries in the Admission Form must be made in BLOCK LETTERS by the candidate in his/her own handwriting. 2. Incomplete application form will not be accepted. 3. Any candidate who passed intermediate examination from Lahore, Sargodha, Faisalabad, Rawalpindi, Gujranwala and Federal Board can apply for registration without N. O. C (No Objection Certificate). 4. The […]

The Chemistry of Organic Molecules. THE CHEMISTRY OF ORGANIC MOLECULES I. MACROMOLECULES-large molecules that are composed of smaller molecules and atoms that are bonded together. These are among the largest of all chemical molecules. A. Polymers-the largest of the macromolecules. These are composed of numerous, small identical subunits known as Monomers. There are 4 major polymers that are important for living organisms. These polymers are; […]