Make a project proposal about problem in society

Q: 2CH3CH₂ + Pb2+. SH

A: Thioalcohols react with heavy metals like Pb2+ to form insoluble compounds.

Q: Na O O Na 70NAT +

A: (a)Sodium ethoxide: Sodium ethoxide is used as a base and it will form enolates of esters.

Q: I need help calculating and setting up questions 4 or 5.   thank you for your help!

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: s that can be obtained non-invasively such as saliva, sweat, hair, nails, etc. The lab will analyze…

A: For the analysis of Cu in biological samples, both Atomic Absorption Spectrophotometer (AAS) and…

Q: 2b) please see attached

A:

Q: 4. Compare the chemical formulas listed at the top of each drawing in Model 1 with the shapes in…

A: Given : model of different atom, molecules.  To find :Chemical formulas of of the drawing models.…

Q: A 0.311 g of antacid was neutralized with 50.0 mL of 0.102 M HCl. Calculate the neutralizing…

A: mass of antacid = 0.311 g Volume of HCl =  50.0 mL  Molarity of HCl 0.102 M  We have to Calculate…

Q: Opioid dependence is described in the Australian Medicines Handbook as a chronic frequently…

A: Here we have to predict the frug A and B from the list .

Q: agent fhom the followring

A: The oxidizing agent is a substance that causes oxidation by accepting electrons; therefore, its…

Q: professor Scimemi has accepted you as a Master’s student and you are involved in a project that…

A: You need to make 2.5 mM KCl. The formula for weighing is as follows: Amount of KCl (g) = [Molarity…

Q: Lab2) please see attached M+N-->P, [M] followed over time.

A: Using Beer’s law, absorbance (A) can be expressed as eLC where e is the molar extinction…

Q: i need answers for 7 and 8 please.  thank you

A: In the given question, the species which is a molecule but not a compound has to be selected. The…

Q: Br₂ На о

A: When an alkene reacts with bromine (Br2)in the presence of water, the addition of bromine occurs,…

Q: Sign in to edit and save changes to this file. 1. 1249ln → レ 121 5oSn

A: Hi, we are supposed to answer one question. To get the remaining questions solved please mention the…

Q: Calculate the standard free energy change, AG°, for the following reactions at the temperature giv…

A: 17) The reaction given is  => Ca (s) + 2 H2SO4 (l) -------> CaSO4 (s) + SO2 (g) + 2 H2O (l)…

Q: please help! *urgent* write as many accurate and relevant statements about the picture below. please…

A: The covalent bond that holds together is peptide bond. When carboxylic acid of one molecule reacts…

Q: Ammonium dichromate is sometimes known as Vesuvian Fire, because of its use in demonstrations of…

A:

Q: E LEFT ALONE

A: Titrations are utilized to neutralize acid with alkali or vice-versa. The equivalents of both acid-…

Q: 1. The crucible is not fired, as the procedure suggests. The mass of the dirty crucible is recorded.…

A: For proper experimental results, we have to carry out all the experiments as given in the procedure.…

Q: Each equation shows a radioactive isotope giving off some form of radiation, labeled X. Which…

A: alpha partcle  =  2He 4 When a nucleus emits an alpha particle, changes:  mass number decreases by…

Q: Can someone help me interpret this data to be put on my research paper? This is the absorbance…

A: Lambda max is define as a wavelength at which a compound show maximum absorbance and it is use to…

Q: 7. Proteins and carbohydrates consist primarily of carbon, hydrogen, and oxygen; these two molecules…

A: 1) Each atom has a nucleus made up of protons and neutrons.       2) In atoms, the number of protons…

Q: Please help me with my Chemistry assignment. Thanks so much!!

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall be…

Q: I нннн н | | | | | н-c-c=С-С-С-Н I | | н н Name Т. Name H-C-H c = c — с н / нннннн | | | | | |…

A:

Q: Which of the following describes a gradient elution process?       stationary phase has varying…

A: In the given question, the nature of the stationary and mobile phase in the gradient process of…

Q: Can you please help me with 5

A: The question number 5 is  (8.41 x 10-5) - (7.9 x 10-6) this can be solved by converting one number…

Q: aws for these two sol

A:

Q: a. b. C. Br осно Ph OH

A: Given are organic reactions.Lets see reagents for each.

Q: When the paramagnetic species are very close together, or are separated by a species that can…

A: Paramagnetic species are the species that contain one or more unpaired electrons. When they are…

Q: A student added 1.28 g of sodium carbonate monohydrate and 1.28 g of calcium chloride separately…

A: Chemical equation of the given reaction is:                                      Na2CO3(aq) +…

Q: What is the molar concentration of the unknown sample (in mole L)?

A:

Q: O 0 NaOCH3

A: given  reaction

Q: Without doing any calculations, rank the systems in order of increasing Kc. Designate 1 as the…

A: Using the equilibrium concentration of reactants and products, concentration equilibrium constant,…

Q: Please answer in tipping format for

A: The pH of a solution is the negative logarithm of the hydrogen ion(H+) concentration.…

Q: To determine the phosphate concentration in a water sample, the following standard curve was…

A: The calibration curve between the absorbance and concentration of phosphate ion is given as, Given:…

Q: In the picture below, the flamming test is performed. What exactly is done in the picture and the…

A: The material obtained by trapping the gas molecules in a solid substance is termed as foam. The…

Q: Use the data below to determine the mass ratio of iron to oxygen for compound 2. Compound 1 2 Mass…

A: We have given,  For compound 2 , Mass of iron ,Fe=20.98g  Mass of oxygen, O = 9.02g

Q: What are the reactants and products when butane combusts with excess oxygen? Express your answer as…

A: When any hydrocarbon reacts with excess oxygen, then it is said to be combustion reaction.  In…

Q: 9- Organic chloride compounds can also be found in crude oil and are eliminated. False True

A:

Q: You are in thhe middie of a tropical rain forest and it is very humid in the environment. You have a…

A: When the concentration of the outside surrounding is greater than the concentration inside the…

Q: Lavender oil inhalation has been shown to affect brain wave activity, as measured by…

A: