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LAB TEMPLATES—IN PEN, REWRITE EACH LAB ON A NEW PAGE OF YOUR LAB NOTEBOOK, BEFORE LAB!!! FOR OUR FIRST LAB YOU MAY JUST COPY THE COLORED PARTS FOR TOMORROW. WHILE IN REMOTE LEARNING YOU WILL UPLOAD A PICTURE OF YOUR WORK FROM YOUR LAB BOOK TO GOOGLE CLASSROOM BEFORE ITS DEADLINE! USING A COMPOSITION BOOK, SAVE PAGES 1-3 for your TABLE OF CONTENTS. NUMBER PAGES 1 to 30 FOR NOW. YOUR TABLE OF CONTENTS SHOULD LOOK LIKE THIS, BE HANDWRITTEN…AND MAY BE DONE LATER. DAY/DATE DATA TITLE PAGE NUMBERS GATHERED Th 9/16 What is the density of water? 4 Th 9/16 What is the density of a regular piece of metal? 5 Th 9/16 How does the density of a gas compare to the density of a solid or liquid? 6 What is the thickness of a piece of aluminum foil? 7 (HANDWRITE in the upper left-hand corner of the page.) 4 You may cut out the form below this line and tape it neatly into your lab book on page 4. WHAT IS THE DENSITY OF WATER? SMALL PICTURE OF GRADUATED CYLINDER Mass of an empty 100 mL graduated cylinder: ___________g (DATA) Mass of the cylinder and 100. mL water: ___________g (DATA) Mass of the 100. mL water: ___________g (CALC) FORMULA NUMBERS SUBSTITUTED CALCULATED FOR DENSITY WITH UNITS DENSITY True value of the density of water: _________________g/mL (GIVEN) FORMULA FOR NUMBERS SUBSTITUTED CALCULATED % ERROR = INTO FORMULA % ERROR (experimental value-accepted value)accepted valuex 100% Fill in the equation below. CONCLUSION (Answer the question at the beginning of the lab in a complete sentence.): ___________________________________________________________. IMPLICATION: Every ________ cm3 of water has a mass of _________ g. (HANDWRITE in the upper right-hand corner of the page.) 5 You may cut out the form below this line and tape it neatly into your lab book on page 5. WHAT IS THE DENSITY OF A REGULAR PIECE OF METAL? Color of cubic block ______________ (OBSERVATION) Suspected ID of cubic block because of its color ______________ or _____________ (HYPOTHESIS) Mass of a cubic block of material: _________________ (DATA) Length of cubic block: ______________ (DATA) Width of cubic block: ______________ (DATA) Height of cubic block: ______________ (DATA) FORMULA NUMBERS SUBSTITUTED CALCULATED VOLUME (ABOVE) PICTURE OF VOLUME of CUBE WITH UNITS FOR CUBE BLOCK (OBSERVATION) FORMULA NUMBERS SUBSTITUTED CALCULATED DENSITY ID OF BLOCK ITS TRUE DENSITY FOR DENSITY WITH UNITS VALUE (GIVEN) (GIVEN) FORMULA NUMBERS SUBSTITUTED CALCULATED FOR % ERROR INTO FORMULA % ERROR CONCLUSION: The measured density of this block made of _____________ is _____________. The true density of the block is ____________. The % error in this experiment is _____________. You may cut out the form below this line and tape it neatly into your lab book on page 6. 6 HOW DOES THE DENSITY OF A GAS COMPARE TO THE DENSITY OF A SOLID? Mass of system before the gas was generated ________________(DATA) Mass of system after the gas was generated ________________(DATA) What did you see to confirm gas was generated? _______________(OBSERVATION) Volume of the generated gas? ________________ (DATA) Mass of the generated gas ________________(CALCULATED) FORMULA NUMBERS SUBSTITUTED CALCULATED DENSITY FOR DENSITY WITH UNITS VALUE FORMULA NUMBERS SUBSTITUTED CALCULATED FOR % ERROR INTO FORMULA % ERROR CONCLUSION: The density of a gas is about ( 10, 100, 1000, 10000 ) times ( lesser / greater ) than the density of a solid. DRAW A PICTURE OF THE SYSTEM, (labeling where the gas was generated and where it was collected). You may cut out the form below this line and tape it neatly into your lab book on page 7. 6 WHAT IS THE THICKNESS OF ALUMINUM (Al) FOIL? Why can’t we measure the thickness of Al foil simply with a ruler? Width of the Al foil __________ (DATA) Length of the Al foil _________ (DATA) Mass of the Al foil __________ (DATA) Density of the Al foil _________ (GIVEN) SIMPLE PICTURE OF Al FOIL (label length with “l”, width with a “w”, and thickness with an “h” or “t” FORMULA NUMBERS SUBSTITUTED SOLUTION CALCULATED VOLUME FOR DENSITY WITH UNITS FORMULA NUMBERS SUBSTITUTED CALCULATED THICKNESS FOR VOLUME WITH UNITS CONCLUSION: The ______________ of _______________ foil can be calculated using its density and measuring its ____________ and ____________ with a ruler and its ____________ with a balance. From the density and _________ we can find the ______________ of the foil. From that calculated value we can use its __________ and ____________ to find its ______________. Fill in these where they belong (Remember the units help you put them in the right places!) DATA, GIVENS, CALCULATED VALUES: 2.72 g 6.37 cm3 24.80 cm 0.0102 cm 0.427 g/cm3 25.00 cm 2% Fill in these words where they belong: mass length (2x) width (2x) volume thickness (2x) density aluminum Then show all the other work to complete the lab.
