Chemistry Lab Report 3

help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working

Routine Chemical Tests for Urine - Word Table Tools Decy Joy Garriel Table Design O Tell me what you want to do 2 Share File Home Insert Draw Design Layout References Mailings Review View Help Layout X Cut P Find Calibri (Body) 12 A A Aa v AaBbCcD AaBbCcDc AaBbCcDc AaBbC AaBbCcC AaBbC AaBbCcD EE Copy ab. Replace Paste BIU v abe X, x A v aly - A - I Normal No Spacing I No Spac. Heading 1 Heading 2 Heading 3 Heading 4 A Select Format Painter Clipboard Font Paragraph Styles Editing COLLEGE OF HEALTH SCIENCES RESULTS AND OBSERVA TIONS: PARTI: BENEDICTS TEST FOR REDUCING SUGARS 田 TUBE PATIENT COLOR RESULT and NO. Before: Blue-green OBSERVATION WHITE PRECIPITATE: 1 Normal Patient 1 After: Greenish brown 2 Normal Patient 2 Before: Blue LIGHT GREEN After: Green PRECIPITA TE: 3 WHILTE AND YELLOW Pathologic Patient 1 Before: Blue PRECIPITATE: After: Green BRICK RED Before: Blue-green After: Brick Red Pathologic Patient 2 PRECIPITATE: Generalization: Page 5 of 8 947 words English (Philippines) K…

Data Table Final buret reading Initial buret reading Volume used Sample 1 Vinegar Base Vinegar Sample 2 Sample 3 (if needed) Base Vinegar Base JOML Som 0,05 110mL/802 10ML 884 JUML 0.00 10μL OML Tome 0.00 10mL 80.2 mL 10ML 88mL come some *If a pipet is used to measure the volume of vinegar, record only in the space for volume used. Molarity of base (NaOH) 1685 M Vinegar number N/A CALCULATIONS: In the spaces below, show calculation setups for Sample 1 only. Show answers for both samples in the boxes. 1. Moles of base (NaOH) 2. Moles of acid (HC2H3O2) used to neutralize (react with) the above number of moles of base 3. Molarity of acetic acid in the vinegar Sample 1 Sample 2 Sample 3 (if needed) 4. Average molarity of acetic acid in the vinegar 5. Grams of acetic acid per liter (from average molarity) 6. Mass percent acetic acid in vinegar sample (density of vinegar = 1.005 g/mL) - 252 -

What's In I. True or False. Write true if the statement is correct and false if it is incorrect. Use separate paper for your answers. 1. In sterilization process, alcohol solution should be 70%-90%. 2. It is very important to observe safety rules in sanitizing tools and equipment. 3. First thing to do in the preparation of metal implements is to soak the tools in cold soapy water. 4. Remove immediately tools and implements from disinfectant solution. 5. In storing tools and implements keep unclean and dull. 6. All hair, used cotton or other waste materials must be removed from the floor right away, and deposit it in a closed container. 7. Each beautician must wear a washable uniform while serving clients. 8. Only VIP's client must be provided with a freshly laundered towel. 9. Finger bowls must be sanitized before another client use them. 10. All waste materials should be disposed of in an enclosed waste bin fitted with polythene bin liner, durable enough to resist tearing.

STANDARD SAMPLE PREPARATIONS FOR ABSORBANCE & CONCENTRATION DATA Concentration of stock nickel sulfate hexahydrate solution = .400 Molarity Sample Volume Absorbance Concentration (In Molarity) a 5 mL .179 10 mL .329 15 mL .588 20 mL .760 25 mL .939 Reference Blank = 0 Please show how to find Molarity, please show steps. Thank you and stay safe.

Please answer in correct question format to use the available options below the question.

Question 2

2. What measurements might you record regarding water samples to assist with the quantification process? How might these measurements have error introduced? 3. Create a table of your observations made during the experiment. For example: Sample 2 Sample 1 Initial After shaking Write a brief summary of any conclusion that were reached. 4. With your group, write a sentence statement of the objective of the experiment and the method that will be used.

36 shift command option ASTRO CAT Unknown Solid Identification Prelab Questions Section CHM lol-217 Anniston Stovall Name 1. Sodium ion (Na") and calcium ion (Ca2) produce nearly the same color in a flame test (yellow and yellow-orange, respectively). Describe a way to differentiate between the two using a solution of Na,CO, and write the correct balanced equation(s). (Hint: recall the solubility rules for Na* ion.)

Please answer fast i give you upvote.

$ F4 An aqueous solution of 2.87 M hydrochloric acid, HCl, has a density of 1.05 g/mL. The percent by mass of HCl in the solution is %. Submit Answer % 5 T G F5 Retry Entire Group 9 more group attempts remaining 6 Cengage Learning | Cengage Technical Support Y H [Review Topics] [References] Use the References to access important values if needed for this question. MacBook Air F6 & 7 gilinent-take F7 8 00 1 DII FB K ( 9 F9 0 L ) O A F10 P Chapter Previous + 11 X Next ☐ Save and Exit OWLY S deles

ame: Table 2. Determination of Acetylsalicylic Acid in Aspirin. 1) Aspirin Brand (and amount of acetylsalicylic acid on label) 2) Average molar concentration of NaOH Solution B (from Part A) 3) 4) 5) 6) Mass of aspirin tablet Mass of pulverized aspirin sample Initial buret reading Final buret reading 7) Volume of NaOH Solution B added 8) Moles of NaOH 9) Moles of acetylsalicylic acid in sample 10) Mass of acetylsalicylic acid in sample 11) Amount of acetylsalicylic acid per tablet T₁ 1.264 12) Mean amount of acetylsalicylic acid per tablet 13) Standard deviation for acetylsalicylic acid per tablet 14) RSD for acetylsalicylic acid per tablet 15) Relative percent error (%) 16) Is the mean amount per tablet acceptable? (Yes or no.) 0.000153 * 180. Kg Imol T₂ √3 1.261 1-259 Seat กา Basic 8.25 mg 0.0975 M Trial 1* Trial 2 *Show all calculations related to Trial 1, standard deviation, RSD, and relative % error. Mole of NaOH (0.0975) (14.3) = 0.000139 (0.0975) (15.7) = 8.000 253 23 0.0975)…

I need help with this question

Taking logarithms and antilogarithms is necessary to solve many chemistry problems. For practice, complete the following table, where N is a number. In N log N 0.212 2.285 1.890 Submit Answer Retry Entire Group No more group attempts remain

2. In your experiment today will the percent yeild of calcium carbonate be higher, lower, or unchanged if: a. The torn-off-corner of the filter paper is discarded instead of placing it in the cone. Explain. b. The graduated cylinder is not rinsed after transferring the sodium carbonate to the beaker. Explain. c. The calcium carbonate precipitate is weighed today instead of the next lab period? Explain.

Part C: Determine percent Oxalic Acid in Unknown Sample Molar mass of oxalic acid 90.03 g/mol Trial 1 Trial 2 Trial 3 Average Precision Mass of unknown oxalic acid (g) 1.0048 0.9995 1.0018 --- Volume (mL) of Standardized KMNO4 used Moles of KMnO4 10.03 9.85 10.45 --- --- --- Moles of oxalic acid (H2C204 • 2H2O) --- --- grams of oxalic acid (H2C204 • 2H2O) (g) percent oxalic acid (%) --- --- Show calculations:

Please explain answer well so it makes sense, thank you.

DIRECT ANSWER NO NEED EXPLANATION.

Mixtures and Pure Substances Lab Data Sheet Discussion Questions: In the space provided for each question, type your response. Be sure to write complete sentences for your responses as well as use proper grammar and punctuation. Submit your lab data sheet as docx or pdf file in Canvas. 1.Classify the salt and pepper mixture. Click or tap here to enter text. 2.Why did you add water to the salt and pepper mixture? Click or tap here to enter text. 3.Classify the types of mixtures formed from the salt, pepper and water. Click or tap here to enter text. 4.What is the physical method used to separate the salt water from the pepper? Click or tap here to enter text. 5.What is the physical method used to separate the salt from water? Click or tap here to enter text. 6.What physical property is different in salt and water? Click or tap here to enter text. 7.What are the types of pure substances present in the salt solution? Click or tap here to enter text.

In the PHET simulation, click on the Game icon at the bottom of the screen. Balance the given chemical equations by changing the coefficients placed before each compound and then clicking Check. When a reaction is balanced correctly a yellow face will appear with a smile. After practicing with the game, balance the given chemical equations without use of the simulation. Drag the appropriate labels to their respective targets. Leave the target empty for a coefficient of 1. • View Available Hint(s) Reset Help 3 NaOH O Na,C,0, 4 H,C,0, Fe, 0, Fe co2

6. Explain the reason why a laboratory analyst should not return excess or unused chemicals back in their respective reagent bottles.

Ascorbic acid (CoH3O6) is also known as Vitamin C. How many molecules of CH¿O6 does a Vitamin C 9. drink with 1.000 × 10³ mg C6H3O6 contain? STARTING AMOUNT ADD FACTOR DELETE ANSWER RESET *( ) G 176.12 1 88.07 mg 3.419 × 1024 3.419 x 1021 0.001 molec 2.925 x 10-22 2.925 x 10-16 2.925 x 1016 g 2.925 x 10-19 5.68 x 1020 1.000 x 103 mo 6.022 x 1023 5.68 x 10-3 3.419 x 10-2 g/m 6.022 x 1022 2.925 x 1022

When you use a balance to weigh a reagent, you should weigh onto: -a filter paper. -the top of the balance. -a folded weighing paper or weighing boat.

4x zoom 24 Help reading a burette 25 25 26 Sample site B Final reading (cm³) Initial reading (cm³) Volume added (cm³) Average volume added (cm³)