1) Why do water droplets take the shape of a sphere? * Your answer 2) Why is it more more effective to add soap/detergent to water when washing (dishwashing, washing clothes, take a bath)? Your answer
Q: The NMR spectra for compound 1 were acquired in a 10 mg / 0.6 mL solution of CDCl3. The 1H and 13C…
A: To provide the analysis of the NMR spectrum of the following compound.
Q: Q11. It was found that absorption frequency of ¹2C160 molecule in the infrared is 6.43 x10¹3 s-¹.…
A:
Q: In solid KCl, which has the same solid state structure as NaCl (simple cubic unit cell), the…
A: This question is related to solid state. There are mainly three types of unit cells in solids-…
Q: 5. Solve the following. 5a. To make 500mL of 200mM NaCl, weigh cylinder, and add water to make the…
A:
Q: of the following expressions for the rate law (either differential or integrated) are completely…
A:
Q: Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8C10H8). When 1.409 gg of…
A: The amount of heat required to raise the temperature of the sample is given by: q = c∆Tq is the heat…
Q: When 0.580 g of sodium metal is added to an excess of hydrochloric acid, 6030 J of heat are…
A:
Q: Once you have completed your chemistry experiments, either by producing products or leaving reagents…
A: The answer for this problem is provided below in great details within the attached figure.
Q: The mass of a single palladium atom is 1.77x10-22 grams. How many palladium atoms would there be in…
A:
Q: When 26.62 moles of FeS₂ react with 5.44 moles of O2 in this reaction below, how many moles of FeS2…
A:
Q: A reduced substance: O O O has a lower oxidation number than before has fewer electrons than before…
A: The addition of electrons or decreases in the oxidation state is known as a reduction reaction and…
Q: Simplify. 2 (3₁²) ² 3 (4₂²)³ Write your answer using only positive exponents. 0 X 00 S
A: -> When exponents changes their position from denominator to nominator (or) from nominator to…
Q: 2Na(s)+C12(g) --> 2NaCl (s) pose a general form for decomposition equations. EVIDENCE [examples from…
A: Given , Reaction 1 : 2 Na(s) +CI2(g) →2NaCI (s) Reaction 2 : CaCO3(s) → CaO(s) +CO2(g)
Q: Determine the Kinetic energy of 1 mole oxygen at 250 K. (R = 8.314 J/K.mol).
A:
Q: Using the balanced equation shown below, calculate the mass of C3H8 that must react in order to…
A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…
Q: Use the following information to answer numerical-response questions 2 and 3. Xenon tetrafluoride is…
A: Oxidation number The oxidation number is a representation of the total number of electrons that an…
Q: ▶ ad My Lo My ad - My Bb Mc C Remaining Time: 36 minutes, 08 seconds. Question Completion Status:…
A: There are two types of bonds in chemistry: ionic bond and covalent bond. Covalent bond is formed by…
Q: What is the osmotic pressure, in atm, of a 0.199 M solution of MgCl₂ at 37.0 °C? (assume complete…
A: Concentration of MgCl2 = 0.199 M Temperature = 37.0 °C Osmotic pressure (in atm) = ?
Q: 30 Al + Br₂ →→→ AlBr3 -> If I have 3.2 g of aluminum and 5.4 g of bromine, which is the limiting…
A: 30) Given, Al + Br2 ---> AlBr3 mass of aluminium (Al) = 3.2 g mass of Bromine (Br2) = 5.4 g…
Q: A weather balloon calibrated at 0.00 °C to have a volume of 20.0 L has what volume in L at -30.2 °C…
A: Given data, Initial temperature (T1) = 0oC Initial volume (V1) = 20.0 L Final temperature…
Q: Read each description in the first column of the table below. If any chemical element with atomic…
A:
Q: If 25 grams of carbon dioxide (CO₂) gas is produced in reaction below, how many grams of sodium…
A: Given : mass of CO2 = 25 grams To calculate : mass of NaOH produced
Q: 10. Calculate the average speed of gaseous Bry molecule at -55°C. Use R-831x10' gm'mak
A:
Q: In each row of the table, select the stronger base. N O S O O O N_ O
A: According to Lewis base is a substance which can donate a pair of electrons. Basicity of a compound…
Q: How would I use a structure to explain the answer?
A: Here, the given compound Anandamide has an amide group. We have to explain using it's structure why…
Q: 67. The mass of an Oreo mini is 3.222 g. The radius is 1.15 cm. The height is 1.00 cm. Will it float…
A: Density - It is the ratio of given mass of a substance to its volume Density = mass/ volume A…
Q: A block of iron weighing 23.7 g is heated to 100.0 °C in boiling water. It is then dropped into 21.3…
A: To find the final temperature of the iron and water system, you can use the principle of heat…
Q: Draw the dipeptide Ala-Ala.
A: A peptide bond is an amide-type bond between two amino acids. An amino acid contains amino and…
Q: 18. Briefly explain the following: i. Finger Print Region in IR Spectroscopy ii. HRMS in Mass…
A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts of…
Q: Q7. What is the degeneracy of the fifth energy level of a cubic box? A. 1 B. 3 C. 2 D. 4 E. 6 98,…
A:
Q: Rank the following compounds in order of increasing oxidation state. OH H3C-CH-CH₂OH A HỌC–CH,CH C…
A:
Q: 2) Which of the following is true of synthesis? a. All synthetic pathways are equally useful b.…
A: For a synthesis, There are many way to solve the synthesis. Everyone wants high yield in a…
Q: Graduated Plastic Pipet 1. Mass a small, empty, dry beaker and record to 0.01g. 2. Using a clean…
A: Percent error is the calculation of percentage of an erroneous calculation.
Q: 2. If you have been fortunate enough to camp in the hign sierras or Rockies, you may have discerned…
A: The boiling point of a substance is the temperature at which it changes from a liquid to a gas.…
Q: structure C Select Draw Rings More / || ||| C N 0 :N-C=0: Erase Based on the formal charges you…
A: In the given question we have to add the formal charge and identify which structure is favoured.
Q: Draw the structure of valine as : Zwitter ion 0.1M HCl 0.1 M NaOH
A: Isoelectric point (PI): The isoelectric point (PI) of amino acids with one carboxylic acid and one…
Q: For the given reaction, the rate of consumption of O2 is 0.5 mol.L –1 2H2(g) + O2(g) --> 2H2O(g)…
A:
Q: hy is cellular respiration an example of a redox reaction? O Glucose is broken down to produce…
A: Electrochemistry is branch of chemistry in which we deal with oxidation and reduction reaction…
Q: 3) What do you call compounds that lower the surface tension of water? * Your answer 4) Water…
A: Surface tension is the property of a liquid displayed by its acting as if it is a stretched…
Q: a plot of ln[RCOOR'] versus t gave a straight line with slope = -71.5 s-1 and y-intercept = -6.91.…
A: Using the integrated rate law equations, order and pseudo rate constant can be calculated.
Q: A postsurgical patient weighs 155.0 lb and is prescribed a painkiller that has an administration…
A: Given data; Weight of patient = 155.0 lb Prescription = 5.00 mg/kg of body weight every 4-6 h
Q: Where do we usually place the label on the flask, test tube, Petri dish plates, and others?
A: General lab equipment in chemistry laboratory are pipettes, scales, centrifuges, Bunsen burners,…
Q: For the bond-line drawings below, draw the Newman projection on the template provided. You must draw…
A: The representation of a three dimensional figure in two dimensions with the help of perspective is…
Q: 5. What is the major organic product obtained from the following reaction? OH Sock
A: In nucleophilic substitution reaction nucleophile replace leaving group and take the position and…
Q: Draw the major 1,2- and 1,4-addition products formed when this diene reacts with HBr. Do not include…
A: Diene has nucleophilic character hence it can give electrophilic addition reaction.
Q: At a certain temperature, the Kp for the decomposition of H₂S is 0.799. H₂S(g) = H₂(g) + S(g)…
A:
Q: ration of A will reach 0.010 M in the reaction shown in Question 8 (A → in below: -1.5 _0 In…
A: Using the integrated rate law equations, time at which concentration= 0.010 M can be determined.
Q: IUPAC Name to all parts?
A: We will first give numbering to the carbons. As we know in all the cases, alkyne gets highest…
Q: The hypothetical element Labradorium, Lb, has two stable, naturally occurring isotopes: 100Lb with a…
A:
Q: Consider the graphs below for the reaction: A " products Concentration of A (M) 0.18 0.16 0.14 0.12…
A: Chemical kinetics can be defined as the branch of chemistry that deals with rates of chemical…
SUBJECT : GENERAL CHEMISTRY
TOPIC : Pre-Lab on Adhesion and Cohesion
Step by step
Solved in 3 steps
- Take some water with a straw and put a few drops on plastic sheet. (a) What is the shape of the drop? (b) Move a drop around with your straw. Does the drop change? 2. Move one of the drops close to another one with your straw. What happens when two drops meet? 3. Put a small amount of one of the solids (salt, pepper, sugar, talcum powder) on one of the drops. Does the shape change? 4. Try this again with the other solids.Part C- Polarity Demonstration The results for the demonstration for polarity of various substances presented in the image below. Note that each vial has two liquid layers, water and oil. (Oil is a hydrocarbon chain.) Use this image to complete the following question. oil oil oil oil oil water water water water water With sodium chloride With iodine (dark purple solid) With copper With sulfur Blank (yellow solid) sulfate (light blue solid) (no solute) (colorless, ionic solid) Classify each of the compounds on display as a polar liquid, non-polar liquid, polar solid or non-polar solid. Saved Normal BIIU X2 X² - fr DI e Polar liquid: Polar solid: Non-polar liquid: Non-polar solid: MacBook Air2. Was there any physical change in the characteristics of trichloroethane when it was added to water?
- Calculations are based off of my data table. I'm not sure how to answer the questions. 1.Based on the results of your experiment, do you have hard or soft water? Does this match the data for your area? Briefly explain your answer. 2.How much calcium would you ingest by drinking one 8 oz glass of your tap water? Show all calculations. 3.What percentage of the recommended daily dose of calcium (1,150 mg/day) does 1.0 L of your water provide? Show all calculations. 4. A complexometric titration can also be used to determine the amount of calcium in milk. The calcium concentration in milk is typically 1,200 mg/L. How would you alter the procedure used in this experiment to determine milk’s calcium content?Why is tap water a homogenous mixture, whereas distilled water is a pure substance?When measuring the caffeine content in coffee, the molecules in the sample will absorb light. The absorbed light data provides information that can then be used in determining the concentration of caffeine. Both statements are correct. 1st statement is True. 2nd statement is False. 1st statement is False. 2nd statement is True. Both statements are False.
- Most of us have had a glass of water from a Brita® pitcher. What is inside of a Brita® filter cartridge and what does it filter out? What doesn’t it filter out?Calculate the water activity/ water content based on the nutrition information given on the image. Elaborate your answer.Write the Lewis structures and give the electron-region geometry, molecular geometry, and bond angles, and the hybridization of the central atom of these polyatomic ions and molecules. (a) BrF2+ (b) OCCl2 (c) CH3+ (d) SeCS (e) CH3
- Why does distilled water not conduct electricity, whereas rain water does?Topic: GRANULES ( I ALREADY ANSWER IT BUT I AM NOT SURE WITH MY ANSWERS, I NEED AN EXPERT TO DOUBLE CHECK MY WORK THANK YOU!!!!) 1. Granules are easier to compress than powders. II. Granules occupies greater volume per unit weight than powders. A. If both statements are TRUE B. If the FIRST statement is only TRUE C. If both statements are FALSE D. If the FIRST statement is only FALSE (MY ANSWER IS A)) 2. Granules prevent the aggregation of powders. II. Moisture and heat labile reagents are preferred in granulated preparations. A. If both statements are TRUE B. If the FIRST statement is only TRUE C. If both statements are FALSE D. If the FIRST statement is only FALSE (MY ANSWER IS C) 3. Wet granulation requires the use of 2 points roller compactors. II. Wet granulation is a prerequisite to avoid the damage of active components in the powder. A. If both statements are TRUE B. If the FIRST statement is only TRUE C. If both statements are FALSE D. If the FIRST statement is only FALSE…Why is NaOH(s) to be taken out and weighed only when you are ready to make measurements? Group of answer choices NaOH does not need special treatment. NaOH reacts violently so is prepared last. NaOH is hygroscopic NaOH burns holes in the weighing paper.
