of a 50 mL graduated cylinder. Take the mass out to the nearest hundredth of a gram. 2. Fill the cylinder to the 25 mL level with tap water and read the volume to one/two places past the decimal. 3. Find the mass of the cylinder and its contents and record. B. Density of an Irregular Solid 1. Obtain a sample of an irregular solid that will be small enough to fit inside a 50 mL graduated cylinder and find its mass 2. Fill a 50 mL graduated cylinder to 25 mL with tap water
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Supplies BagCK1 © Hands On Labs‚ Inc. 1 1 1 1 1 1 1 1 1 1 1 LabPaq CK-1 Item Description Table salt Piece of string Isopropyl (rubbing) alcohol Tap water Paper‚ 5 cm x 5 cm for weighing chemicals Beaker‚ 100 mL‚ glass Cylinder‚ 25 mL 25-mL volumetric flask Pipet‚ Serological-2mL Bulb‚ Rubber Goggles-Safety Scale-Digital-500g Test Tube (1)‚ 13 x 100 mm Bolt‚ Metal – Small Magnet bar Pipet‚ Empty Short Stem 2 Discussion and Review In this experiment you
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__99__ drops _4___mL Density Measurements Mass of graduated cylinder 16.5____g Mass of graduated cylinder and water _20.5___g Net mass of the water __4__g Density of the water __.8__ g/mL Mass of graduated cylinder and alcohol _20.45___g Net mass of the alcohol __3.95__g Density of the alcohol __.79__ g/mL Volume of half filled graduated cylinder _30.1___mL Volume of half filled graduated cylinder and metal bolt ___38.1_mL Volume of the metal bolt _1___mL Mass
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density is 7.131 g/cm3 5. Materials Metal A (Zinc) 50cm3 measuring cylinder 25cm3 measuring cylinder 250cm3 beaker Glass Water Tap Water Balance 6. Procedure Find the mass of the watch glass Put the copper piece on the watch glass and find their mass Fill a 50cm3 graduated cylinder with enough water that you think will completely cover Metal A and record this volume in the data table Fill a 25cm3 graduated cylinder with enough water that you think will completely cover Metal A and record
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2. Preparation Of 1 M Na2CO3 Molecular mass of Na2CO3 = 106g Mass of salt in 100 ml of 1M solution = 10.6g Weighing of salt using electrical balance * Mass of Na2CO3 + beaker = 78.64g * Mass of beaker = 68.04g * Mass of Na2CO3 = 10.6g 1. 10.6g of Na2CO3 was weighed in a dry beaker. Small amount of distilled water was added and the salt was dissolved. 2. The contents of the beaker were transferred to
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(mass) squeezed into a given space (volume). The density of substance remains the same no matter the size of the sample at a given temperature. Quantitatively‚ density can be expressed as the mass of a substance per unit volume‚ and the volume of a cylinder can be expressed as π times the radius
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General Chemistry 1 Lab 1: Laboratory Techniques and Measurements Purpose: The purpose of this lab is to ensure that students are able to understand how to conduct measurements of length‚ mass‚ temperature‚ density and volume using different measuring devices. Students will also learn how to dilute substances by using simple algebra. Procedure: 1. Prepare a data table similar to Data Table 1 shown below. 2. Choose any three objects that are shorter than the metric ruler to measure‚ such
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quantity governed four-stroke‚ single-cylinder gas engine has a bore of 146mm and a stroke of 280mm.At 475 rev/min and full load the net load on the friction brake is 433 N‚ and the torque arm is 0.45 m. The indicator diagram gives a net area of 578 mm² and a length of 70 mm with a spring rating of 0.815 bar per mm. calculate the ip‚bp‚ and mechanical efficiency. GIVEN DATA: Four stroke single cylinder gas engine n = no. of cylinders = 1 Dia. of cylinder bore = 146 mm = 0.146 m Length of stroke
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electronic weight should be used to measure the grams of calcium carbonate so that the weight can be more accurate Volume of hydrochloric acid (20ml)- use a measuring cylinder to measure the hydrochloric acid‚ be precise and make sure it stays constant Volume of water (entire 100ml measuring cylinder)-fill the entire measuring cylinder with water‚ and make sure it stays constant
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They should get a bottle of MistTwist®‚ a 100 mL graduated cylinder‚ raisins and a stopwatch. Each student needs to be assigned a job. The jobs included- timekeeper‚ volume keeper‚ dance counter‚ dance counter assistant‚ pourer/ dropper and recorder of information. Count out ten raisins to drop in the graduated cylinder. Fill graduated cylinder with MistTwist® up to the 100 mL line‚ at a 45 degree angle tilt. Set stopwatch to count down for one minute-
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