A Shift ? Lab 5 Data Sheet: Percent Water in a Hydrate Name: Instructor: DATA TABLE Sample Identification Number_ Before Heating Mass of Dry Crucible and Cover Mass of Crucible, Cover, and Hydrate Mass of Hydrate Trial 1 After Heating Mass of Crucible, Cover, and Dry Solid 29.59 Mass of Anhydrous Compound Mass of Water in Hydrate Sample Calculate the percent of water in the Hydrate Sample Trial 1 Answer: Show calculations: rial 2 Answer: now calculations: Arkansas Scholastic Press Date: Time & Day of lecture: Trial 1 28.25 30.59 Trial 2 28.25 31.14 1 End 24 Trial 3 28.25 30.27 Trial 2 Trial 3 29.96 29.51

A Shift ? Lab 5 Data Sheet: Percent Water in a Hydrate Name: Instructor: DATA TABLE Sample Identification Number_ Before Heating Mass of Dry Crucible and Cover Mass of Crucible, Cover, and Hydrate Mass of Hydrate Trial 1 After Heating Mass of Crucible, Cover, and Dry Solid 29.59 Mass of Anhydrous Compound Mass of Water in Hydrate Sample Calculate the percent of water in the Hydrate Sample Trial 1 Answer: Show calculations: rial 2 Answer: now calculations: Arkansas Scholastic Press Date: Time & Day of lecture: Trial 1 28.25 30.59 Trial 2 28.25 31.14 1 End 24 Trial 3 28.25 30.27 Trial 2 Trial 3 29.96 29.51

Chemical Principles in the Laboratory

11th Edition

ISBN:9781305264434

Author:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Publisher:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Chapter6: Properties Of Hydrates

Section: Chapter Questions

Problem 1ASA: A student is given a sample of a pink manganese (II) chloride hydrate. She weighs the sample in a...

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2. SAMPLE # 2 crucible, cover, unknown hydrate 18.1352g crucible and cover |5. \4० ४ sample 2.9944 first second third weighing weighing weighing crucible, cover, anhydrous salt 17.5246 7,5249 g H2O lost (use your last weighing) 17.5249g % water, experimental SHOW CALCULATION 93
A bbhosted.cuny.edu/webapps/assessment/take/take.jsp?course_assessment_id=_1... R Paused E Apps G Gmail O YouTube O Maps Home Take Test: Test #1 * Question Completion Status: A MOving to the next question prevents cnanges to tnis answer. Question 4 of 20 > Question 4 4 points Save Answer What is the density of a solid sample that increased the volume of 25.2 mL of water to 34.9 mL when placed in the graduated cylinder and weighs 13.34 g? O A. 0.52 g/mL O B. 0.38 g/mL OC. 1.37 g/mL O D.0.73 g/mL A Moving to the next question prevents changes to this answer. Question 4 of 20 13,846 MAR étv S esc F2 F3 F4 F5 F6 F7 @ %23 24 2 & Q W E R Y II
12help please use sig figs
A sample of medium-grade bituminous coal analysis is as follows: соmponent percent S 1 Ash 11 Water 3 The residuum is C and H in the mole ratio H/C = 9. Calculate the composition of the coal with the ash and the moisture omitted.
what is the correct sig figs?
PART3-1ABORATORY FQUIEMENT FQUIPMENTNAME FUNCTION To hold test tubes. Attaches to a retort stand to support glassware being heated. To pour liquid from a large container into a small container. To provide a flame during an experiment. To light the Bunsen burner. To attach test tubes to a retort stand. To clean substances out of a test tube. To hold a hot crucible or flask. To hold a hot test tube. To place on the lab bench to prevent burning or to use with ring clamp. To transfer small amounts of liquid. To grow bacteria or contain small experiments. To hold liquids. To measure liquids. To contain experiments (a stopper can be used to close the flask). To hold a hot beaker. To perform an experiment with a different substance in each well. To hold chemicals and perform experiments in. To scoop and transfer small amounts of substances. To stir during experiments that involve mixing or dissolving.
(in ML) evo/index.html?deploymentld%35575082893418928890996 2&elSBN=9781305657571&nbld%3D2199898&snapshotld%3D21998... * INDTAP Q Search this co Use the References to access important values if needed for this question. Oxalic acid dihydrate is a solid, diprotic acid that can be used in the laboratory as a primary standard. Its formula is H2C204•2H2O. A student dissolves 0.210 grams of H,C,O4•2H¬O in water and titrates the resulting solution with a solution of sodium hydroxide of unknown concentration. If 27.3 mL of the sodium hydroxide solution are required to neutralize the acid, what is the molarity of the sodium hydroxide solution ? M Submit Answer 5 question attempts remaining Ne
1. Formula of anhydrous salt 19:211g 2. Mass of empty dry crucible and lid 3. Mass of crucible, lid and the hydrate before heating 20.432.8. 4. Mass of crucible, lid and residue (anhydrous salt) after heating 2.0.211 5 Mass of Crucible, nd and residuụe (abhydrous salt) aftecadditional heating 6. Mass of hydrate, (#3 – #2) 7. Mass of residue, the anhydrous salt ((smaller of #5 or #4) – #2) 8. Mass of water lost, (#6 – #7) 9. Molar mass of water 10. Molar mass of anhydrous salt mass of water lost, #8 11. Moles of water molar mass of water, #9
aur X Macmilla X 2/ Course X 50 ~ T Sections X Submit Answer evo/index.html?deploymentid=5735112480241329813180832311&elSBN=9781305862883&id=1707786042&snapshot! References lancing Molecular Equations: This is group attempt 2 of 10 HOMEW X Use the References to access Important values if needed for this question. When the following molecular equation is balanced using the smallest possible Integer coefficients, the values of these coefficients are: Na (s) + H₂0 (1). NaOH (aq) + H₂ (8) ≡く □ □ A MindTap ㅁ Autosaved at 5:51 PM MacBook Air Gatoms to When the following molecular equation is balanced using the smallest possible Integer coefficients, the values of these coeffi Br₂(g) + Cl₂(g) →BrCl(g) X Dom
1. Iron reacts W/Water to Produce grams of troncii) oxide are Produced How many grams of iron are needed? a. Balance equation- 2Fet + H20-Fez03 B. Road/mole map wlarrows- C. Fence Post conversion-
Please calculate to the correct number of sig figs.