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Title: Chemical Reactions Purpose: Observe different kinds of chemical reactions and the results. Six tyles of simple chemical reactions and reversible reactions Procedure: 1. Combine AgNO3 (silver nitrate) and HCl (hydrochloric acid) in test tube. White solid forms - AgCl (silver chloride) 2. Put stopper on and invert to mix. Double displacement reaction. 3. Combine KI and Pb(NO3)2 - creates a yellow liquid (used to be used in paints - caused lead poisoning) 4. Acid/Base Double displac...

Title: Equipment, Safety, and Mass/Volume Measurement Purpose: To go over the safety aspects of working in the chemistry lab. Go over the equipment that will be used in the chemistry lab. To observe mass and volume measurements. Procedure: 1. Review commonly used laboratory equipment. 2. Review commonly available safety equipment. 3. Measure mass of cellphone using analytical scale #1 4. Measure mass of graduated cylinder using analytical scale #1 5. Measure mass of metal cylinder using ...

Experiment #: 2 Title: Density Purpose: To measure the density of some liquids and solids which includes some materials of biological interest. Procedure: 1. Dispense 10mL of water using a 10mL pipet into beaker on zeroed scale 2. Use scale to measure mass of water 3. Calculate density 4. Add 5mL of water to beaker using a 5mL pipet 5. Use scale to measure mass of water 6. Calculate Density 7. Add 10mL of water to beaker using a 10mL pipet 8. Use scale to measure mass of water 9. Ca...

Show the calculation of the molecular weight for the following two compounds, reporting your answer to 2 places after the decimal. 1. Ca3(PO4)2 2. C9H8NO4Cl Your Answer: 1. 3(40.08)+2(30.97+4(16))=310.18 g/mol Ca3(PO4)2 2. 9(12.01)+8(1.008)+14.01+4(16)+35.45 = 229.61 g/mol C9H8NO4Cl 1. 3Ca + 2P + 8O = 310.18 2. 9C + 8H + N + 4O + Cl = 229.61 Question 2 9 / 10 pts You may find the following resources helpful: Scientific Calculator Links to an external site. Periodic Table Equation ...

Complete the two problems below: 1. Convert 845.3 to exponential form and explain your answer. 2. Convert 3.21 x 10-5 to ordinary form and explain your answer. Your Answer: 8.453x10^2 - the decimal point was moved two places to the left - the first number was 8 .0000321 - the decimal point needed to be moved five spaces to the left. 1. Convert 845.3 = larger than 1 = positive exponent, move decimal 2 places = 8.453 x 102 2. Convert 3.21 x 10-5 = negative exponent = smaller than 1, move ...

Title: Quantitative and Qualitative Analysis Purpose: To measure how much of a substance is in a chemical compound. Procedure: Carbonate 1. Place one test tube in beaker and tare scale. 2. Use scoopula to add 1g of the carbonate. Record exact weight and place carbonate into beaker. 3. Add sulfuric acid to test tube (~⅓ full ) and place inside beaker 4. Measure weight of test tube with sulfuric acid and beaker with carbonate and record. Tare scale again. 5. Pour sulfuric acid into bea...

A new drug is introduced that is supposed to reduce fevers. Tests are done with the drug. The drug is given to 60 people who have fevers. It is found that the mean time that it takes for the fever to get back to normal for this test group is 350 minutes with a standard deviation of 90 minutes. Find the 80% confidence interval for the mean time that the drug will take to reduce all fevers for all people. Answer the following questions: 1. Multiple choice: Which equation would you use to so...

Explain why a patient with liver disease would have intolerance to fatty foods. The liver produces bile which breaks down fats. If it is not producing bile (or less bile), fats will not be broken down effectively. Question 2 5 / 5 pts Fill in the four blanks: Food enters the stomach from the ____A_______ via the ____B______ sphincter. Food exits the stomach via the ______C______ sphincter into the____D_______. - Food enters the stomach from the ______A_____ : esophagus - via the _____B_...

A&P LAB 4 1A-The Squamosal suture marks the division of which cranial bones? Temporal bone and Parietal bones 1B-The Lambdoidal suture marks the division of which cranial bones? Occipital bone and Parietal bones 2A-Which endocrine gland is situated in the cranial bone pictured above (highlighted in blue)? The pituitary gland is situated in the hypophyseal fossa of the sphenoid bone 2B- Which cranial bone is pictured above (highlighted in blue)? The ethmoid bone 3A-Which facial bone is...

A&P LAB 4 1A-The Squamosal suture marks the division of which cranial bones? Temporal bone and Parietal bones 1B-The Lambdoidal suture marks the division of which cranial bones? Occipital bone and Parietal bones 2A-Which endocrine gland is situated in the cranial bone pictured above (highlighted in blue)? The pituitary gland is situated in the hypophyseal fossa of the sphenoid bone 2B- Which cranial bone is pictured above (highlighted in blue)? The ethmoid bone 3A-Which facial bone is...