Help me categorize this Used for measuring/dispensing accurate volume10 mL Graduated cylinderUsed to hold an approximate volume× Volumetric Pipette× Volumetric flaskdisposable pipetteUsed to hold an accurate volumeX 125 mL Erlenmeyer flask (also called conical flask)Items needed to set up a heating apparatusIron RingX 50 mL Graduated Cylinder× 100 mL BeakerHeat source such as a bunsen burner or Sterno fuel can× 50 mL BeakerUncategorized answersRing Stand× Wire mesh/gauze or clay triangleWatch glassStirring/Glass RodSpatulaBuretFunnel

1. Used for measuring/dispensing accurate volume:10 mL Graduated cylinder: This cylinder has…

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Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter2: Analyzing Data

Section: Chapter Questions

Problem 121A

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Suppose some measurements are made on two different homogeneous stones to find out if they are made of the same kind of rock. The mass and volume measurements are listed below. Are the two stones the same type of rock? Why or why not? Show all calculations. Mass Volume Calculations Stone 1 58.0 g 20.0 cm Stone 2 50.1 g 15.0 cm3 21/common/assets/pdfjs/1.0.0.30/web/viewer.ht...ndered-pdf&fullscreen=Dd21-fileviewer-rendered-pdf-dialog&height=746#0
C4H10(butane, gas used in lighters) Express your answer as a chemical equation. Identify all of the phases in your answer. C2H6O (ethyl alcohol, liquid used in gasohol and as race car fuel) Express your answer as a chemical equation. Identify all of the phases in your answer C8H18 (octane, liquid, a component of gasoline) Express your answer as a chemical equation. Identify all of the phases in your answer.
1. During the set-up of a distillation or a boiling point apparatus, the position of the bulb of the thermometer is crucial. Why is it so important to obtain accurate results?
Of the flasks or laboratory instruments that are given, express their function (specify -if they can be used to measure- if their measurements are approximate or relatively exact) Erlenmeyer flask beaker burette
After creating her standard curve for absorption versus the concentration (M) of FD&C Red 40 and processing her data, Sally found that her drinking strength Kool-Aid sample had a concentration of 4.692 x 10–5 M. If 0.132 grams of Kool-Aid powder was used to prepare an 8-fl oz cup of her assigned flavor, what is the percent by mass of FD&C Red 40 in her Kool-aid powder? Report your answer as a percentage with two places after the decimal. Do not include the percentage sign in your answer. Pay attention to units. You are trying to find the mass percentage of red dye, so you need to know each variable in the equation in Appendix B. Note that the percent by mass equation should be multiplied by 100. There may be some useful conversion factors in the experimental procedure.
The density of water is about 1 g/cm³. Predict whether the following objects will sink or float. Object Density (g/cm3) Sink or Float Cork 0.2-0.3 Float Anchor 7.8 Sink Spruce Wood Oar Apple Orange Orange without peel 0.4 Float 0.9 Float 0.84 Float 1.16 Sink
What volume of iron (7.87 g/cm3) would be required to balance a 1.25 cm3 sample of lead (density 11.4 g/cm3) on a two-pan laboratory balance?
Suppose you accidentally drop a glass bowl full of sugar onto the floor, causing the bowl to shatter into pieces. Which of the procedures would be the most effective way to separate the sugar from the tiny pieces of glass? Collect all of the sugar and glass pieces into a pot and heat the mixture to melt the sugar. Then, pour the liquid sugar through a filter to separate the glass from the sugar. Collect all of the sugar and glass pieces into a bucket of water. Allow the water to dissolve the sugar, then remove the water and sugar solution, leaving the glass behind in the bucket. The solution is then heated to evaporate the water, leaving the sugar behind. Use a magnifying glass and tweezers to safely remove the glass particles from the mixture. Sweep a magnet across the spill to attract the glass particles and remove them from the mixture.
4.05 kg + 567.95 g + 100.1 g
PART 3 A Volumetric Flask + A С — ALI50 SOA A 50-mL volumetric flask measures a volume of 50.00 mL. In this experiment, we want to show that this is true. 50.00 mL is the actual volume measured by this volumetric flask. EXPERIMENT: The mass of an empty volumetric flask is measured. Then water is added to the volumetric flask and the meniscus is adjusted to be at the correct level. Then the mass of the volumetric flask and the water is measured. Finally, the temperature of the water in the volumetric flask is measured. RESULTS: Mass of empty volumetric flask = 37.04 g Mass of volumetric flask and water = 86.83 g Temperature of the water in the volumetric flask = 23°C 4 Densities of water at different temperatures: Density of Water at Different Temperatures (g/cm) Temp, °C Density Temp, °C Density Temp, °C Density 18 0.99862 21 0.99802 24 0.99733 19 0.99844 22 0.99780 25 0.99708 20 0.99823 23 0.99757 26 0.99681 (a) Using the mass of the water measured and the density of the water,…
Some people like to make their own hand lotion because it can be less expensive than buying it and they have the ability to add only the fragrances that they like. A recipe for hand lotion calls for mixing 253 g of water (H₂O) with 264 g of glycerin (C3H8O3). This recipe makes a total of 685 mL of hand lotion. Incorrect. What is the mass percent of glycerin in the hand lotion? i ! % Hint The mass percent is the concentration of the solution as the percent of solute in a given mass of solution. Assistance Used
A student pipetted 10 mL of a sample solution into a 250 mL volumetric flask and diluted it to the mark with distilled water. The student then, pipetted 10 mL of this new solution into a 50.00 mL volumetric flask and diluted it to the mark with water. What is the dilution factor of the final solution? 25X 100X 125X 5X 50X

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