Describe the essential features of a well-designed experiment.

Q: While assembling the equipment and raegents for this investigation, suppose you spilled 500 mL of 1M…

A: IF you spill 500mL of 1 M HCl. on your jeans you should do the following things.

Q: Vhich of the following does NOT exhibit a safe laboratory practice? A Gloves are not removed when…

A: The options given are,

Q: 1. Explain what the functions of the clay triangle and wire gauze are for an apparatus? (In 2…

A: Function of clay traingle = A clay traingle is used to hold the dishes and crucibles when they are…

Q: Normality of a solution was determined by five different titrations. The results were 9.5  mL, 8.5…

A: Mean -  Is the arithmetic average of a set of given number.

Q: It is always important to label everything in the dispensary or the medicinal chemistry laboratory.…

A: We can use two different techniques to distinguish between Aspirin and paracetamol namely…

Q: For the synthesis of aspirin, complete the following table, using the experimental information…

A: Working formula % yield = [(actual yield/theoretical yield)*100] % % error = [(theoretical…

Q: The following volumes of 0.000300 M SCN- are diluted to 15.00 mL. Determine the concentration of…

A: Concentration of diluted SCN-1 can be calculated by using formulaM1V1 = M2V2Where M1 & V1 is the…

Q: chemical score?

A: The chemical score is the content of essential amino acid present in the nutrition. It also tells…

Q: Arrange the steps of gravimetric analysis in chronological order

A: Gravimetric analysis is a quantitative method of the measurement of the substance on basis of their…

Q: What is the importance of calibrating analytical balances?

A: Calibration of analytical balance is important.

Q: PART 2-LABORATORY HAZARDS EXPLANATION HAZARD

A:

Q: A student dissolves a Jefferson nickel to make 100.00 mL of solution in a volumetric flask. The…

A: Final Molarity = 2.90 x 10-2 M  Final volume after dilution = 100 ml  Initial volume of first…

Q: A volume of 25.00 mL of the original solution was diluted to a total volume of 100.0 mL and then…

A: If we take a definite amount of solution and then dilute it with by adding of water the mole of…

Q: Also known as absolute methods, these analytical methods rely on actual chemical reactions in order…

A:

Q: Most laboratory accidents could be prevented by adequate anticipation and proper laboratory…

A: First sentence : Most Laboratory accidents could be prevented by adequate anticipation and proper…

Q: What type of balance are you going to use if you are weighing a sample for sample analysis? Explain…

A: A question based on analytical process that is to be accomplished.

Q: The data below apply to questions 13 - 18. A sample is believed to consist of Epsom Salt, MgSO47H2O.…

A:

Q: Which of the following is incorrect: a. General steps in qualitative analysis include: Method…

A: Chemical analysis are of two types :  1. Qualitative analysis 2. Quantitative analysis The incorrect…

Q: Eight replicate measurements were made on a test solution producing the following results for the…

A:

Q: The diagram shows the setup of an experiment. A few observations of the experiment are listed in the…

A: Displacement reaction : When metals of different reactivities are brought together, displacement…

Q: What is the difference between Class A and Class B glassware? Which Class (A or B) would be better…

A: The glasswares are the apparatus that is used in laboratories for measurements and storage.

Q: What is the practical importance of extraction in relation to chemistry especially when it comes to…

A: Extraction is important  for  Isolating important  materials from plants  .

Q: what is the significance of gravimetry analysis?

A:

Q: After creating her standard curve for absorption versus the concentration (M) of FD&C Red 40 and…

A:

Q: Differentiate between a synthesis experiment and a technique experiment.

A: Answer - According to the question - We know that - An experiment is a procedure designed to test a…

Q: Name three types of systematic errors and give its brief description

A: Systematic errors are the ones that remain constant with sample size or may decrease or increase…

Q: 21. What materials contain a precisely known concentration of a substance typically used in…

A: Reference materials are quite important for the calibration purpose in quantitative analysis. The…

Q: A 1 mL sample of glycogen was calculated to contain 35 µmol (micromole) glucose. To 1 mL of this…

A: Given, Volume of sample of glycogen = 1 mL Moles of glucose = 35 micromole HCl volume = 2mL…

Q: Why is it important to know the use of laboratory tools and equipment?

A: Please find your solution below : It is important to know the use of laboratory tools and equipments…

Q: Please Help me complete part d, e and f of question 4.

A: (d) Atoms are indivisible particles, contains only same type of Substances. From the given samples,…

Q: Ms. Tan came to the laboratory for blood tests because her physician suspected renal disease. The…

A: Answer 1 : Generally the serum lacks any red blood cells And it is pale yellow in color . But…

Q: How does analytical chemistry help in forensic science?

A: The way how analytical chemistry help in forensic science has to be given,

Q: Mass of Inner cup with stirrer on the digital balance=36.7 Mass of Inner cup with stirrer and warm…

A:

Q: Differentiate powder from granules? Make it in table form.

A:

Q: Preparations of Solution by Chemical Reaction are classified as extractives. a)true b)false

A: Given: Preparations of solution by chemical reactions are classified as extractives.

Q: What is the importance of Chemical Safety in the laboratory

A: The role of chemical safety in lab is very high. If we do not use precautions before experiment we…

Q: STANDARD SAMPLE PREPARATIONS FOR ABSORBANCE & CONCENTRATION DATA Concentration of stock nickel…

A: In order to solve this table and find molarities/concentrations, we will use the law of dilution…

Q: what are the differences and similarities of "The Chemical Professional's Code of Conduct" with Good…

A: The Chemical professional code of conduct is established to maintain the scientific integrity and…

Q: Explain the use of plans and their importance in assessing the quality of pharmaceutical products.…

A: A quality plan is document that outline  core quality objectives to enhance the quality in the…

Q: List and define the indicators that are used to assess the performance of a specific analytical…

A: indicator PH RANGE COLOUR IN ACID COLOUR IN BASE METHYL ORANGE 3.1-4.4 RED ORANGE METHYL YELLOW…

Q: This part of the analytical process is usually the most difficult step and the source of the…

A: 1) Choosing a Method  The choice is sometimes difficult and requires experience as well as…

Q: what are the important hazards to know in gravimetric analysis? (please include pictures)

A:

Q: 9. The concentration of a solution (in ppb) was measured several times, resulting in the following…

A: Given : Concentration in ppb 7.45 8.49 6.91 7.32 The Accepted value for the…

Q: A commercial cola brand states that the cola contains 45 mg phosphorus per 250 mL serving. Calculate…

A:

Q: Kindly Answer the observation ad conclusion of the experiment. Even if it is your guess.

A: On rubbing a little amount of lab spirit/rubbing alcohol on skin, the skin feels cool compared to…

Q: Which of the following is incorrect: a. General steps in qualitative analysis include: Method…

A: A multiple choice question about chemical analysis, which is to be accomplished.

Q: 24. What important analytical method is employed that include analysis of standard reference…

A: The given methods are concerned with the QA/QC of an analytical process.

Q: Identify basic procedures for dealing with laboratory accidents.

A: Given: Basic procedures for dealing with laboratory accidents.