Lab 1 “Laboratory Techniques and Measurements” A. Water boils at 100C at sea level. If the water in this experiment did not boil at 100 C‚ what could be the reason? * We’re not at sea level; the pressure could be lower or higher. B. While heating two different samples of water at sea level‚ one boils at 102C and one boils at 99.2C. Calculate the percent error for each sample from the theoretical 100C. (show your work) * 1st Sample: 1.96% error * 2nd Sample: 0.81% error
Premium Water Density Volume
Title: Laboratory Techniques & Measurements Purpose: To become familiar with the International System of Units and common laboratory equipment and techniques. To learn how to determine volume‚ mass‚ length‚ and temperature of a wide variety of items. To learn how to calculate density and concentration of dilutions. Procedure: I used a ruler‚ thermometer‚ and scale to take measurements. I used a graduated cylinder‚ short step pipet‚ scale‚ and ruler to determine volume and density. I used a
Premium Density Volume
Shelley|Date: 9-17-12| Exp 2: Laboratory Techniques & Measurements|Lab Section: 0000| Data Tables: Step 1: Length and Measurements Object Measured|Length in cm|Length in mm| Key|5.15 cm|51.5 mm| CD|12.0 cm|120.0 mm| Fork Spoon|18.05 cm 16.30 cm|180.5 mm 163.0 mm| Step 2: Warm Temperature Measurements Hot tap water temperature 49.50_˚C Boiling water temperature __immediately:104.5; after 5 minutes: 103.0__˚C Step 3: Cold Temperature Measurements Cold tap water temperature
Premium Boiling Density Volume
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
Premium Density Water
Laboratory Techniques & Measurements Observations from Procedures Data Table 1 – Length measurements Object|Length (cm)|Length (mm)| Band-Aid Canister|10.3 cm|103 mm| Fragrance Oil Bottle |7.3 cm|73 mm| Pill Bottle|7.1 cm|71 mm| Data Table 2 – Temperature measurements Hot water from tap(ºC )|Boiling water(ºC)|Boiling water – 5 minutes(ºC)| 52 ºC|99 ºC|100 ºC| Cold water from tap(ºC)|Ice water (ºC)|Ice water – 5 minutes (ºC)| 23 ºC|10 ºC|10 ºC| Data Table 3 – Volume measurements
Premium Density
Laboratory Measurements and Density Objectives: A. To determine the density of Aluminum (lit. value = 2.7 g/cm3) by determining its mass‚ and measuring its volume by dimensional analysis and water displacement. We will also examine the % error in our determination based on the literature value. B. To determine the mass and diameter of select ball bearing. Plot graphs of mass vs. diameter‚ mass vs. surface area‚ and mass vs. volume. Afterwards use slop of the mass vs. volume graph to determine density
Premium Density Volume Length
Title Laboratory Techniques and Measurements Purpose The purpose of this experiment is to determine mass‚ length‚ temperature‚ volume‚ and density of objects and liquids using common measuring devices and algebraic formulas. The metric system‚ the most common set of measurements used in science‚ which includes meters‚ liters‚ Celsius‚ and grams will be used. Procedure The following items were used within the experiment: (1) Metric ruler with centimeter (cm) and millimeter (mm)‚ (1)
Premium Orders of magnitude Water Base
Archimedes’ Principle method instead of submerging the object? If the object was dropped into the beaker‚ then the measurements would not be correct. F. How did the magnet’s density measurement using the Archimedes’ Principle compare to the density measurement using the calculated volume? Which method might be more accurate? Why? The calculated volume measurement is more accurate because Archimedes’ Principle might have a higher percentage of error.
Premium Water Density
Hello all‚ I went into the lab and none of the Ps had notes of calibrations occurring during or between any of the task. P 24‚ 54 and 71 all have massive decreases from baseline to both task. The real problem is that with out a note of when calibration occurred there are three logical explanation for this. First‚ that they ran across campus and were not actually at baseline when baseline measures where taken thus leading to the decrease when they do finally calm down. Secondly‚ the machine could
Premium Writing Management Essay
Laboratory report Shae Aquino Chemistry 161L February 25‚ 2014 Conductivity of Solutions of Ionic and Covalent Compounds Purpose The purpose of this experiment was to use electrical conductivity on ionic‚ molecular acids‚ and covalent compounds in order to determine the properties of each compound. Introduction In chemistry‚ the term of an aqueous solution is defined as a substance that is soluble in water. For example‚ sodium chloride (NaCl) dissolves in water‚ or other
Premium Chemistry Sodium chloride Hydrochloric acid