1. a. What are the three classifications of chemicals used in analytical chemistry? (one is Primary Standard Grade) b. What are the three common sources of error encountered in weighing (one is buoyancy) c. To what precision can analytical balances (in mg) and pan balances (in g) be read

Q: What is the product obtained from the following reaction? Br 1 1 2 H 4 + HBr H 2 Br 3 H -Br I + 4 Br

A:

Q: Draw nonane in a structural condensed format.

A: The organic compounds are named using IUPAC nomenclature.The IUPAC council upon certain…

Q: Draw the major product of this reaction. Ignore inorganic byproducts. Mill POCI3 pyridine Drawing H…

A: Alcohol reacts with POCl3 and pyridine to form an alkene and a phosphate ester.

Q: МСРВА CH2N2, hv Br2, CC14

A: -> MCPBA (m-chloroperoxybenzoic acid) used for formation of epoxide when reacts with double…

Q: Draw the product of this reaction Ignore inorganic byproducts عمر 1.NONHA 2 MO

A:

Q: 2. CI The intermediate in the following nucleophilic aromatic substitution reaction has at least 5…

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: 3. Which of these two reactions would go better? Why? (CH3CH2)3CBr (CH3CH₂)3CBr HOCH₂CH3 NaOCH₂CH3…

A: and

Q: Choose the correct structure of the major product for the following reaction. a. O Eto a C P e CD…

A: In the above reaction diethyl malonate (starting material) which has active methylene group and…

Q: consider the reaction c(s) + co2(g). --> 2CO(g). At equilibrium at 700 K, the total pressure of both…

A: The objective of the question is to calculate the partial pressure of .

Q: Draw the product of the reaction shown below at physiological pH (pH = 7.4). Ignore inorganic…

A: During the synthesis of peptides, sometimes it is necessary to protect the amino group or carboxylic…

Q: Determine the Eell of a voltaic cell composed of Ni(s) in a 1.00 M solution of Ni and Cd(s) in a…

A: E0 for Cd = -0.403 VE0 for Ni = -0.257 VT = 25oC[Ni2+]=1.00 M[Cd2+]=1.00 M

Q: 6) Order these compounds from most oxidized to least oxidized: MeO HO- O 1 A) 3>1>2 C) 1>2>3 MeO…

A: Oxidation number is the hypothetical charge developed on an atom when it is separated from other…

Q: The following represents a portion of the mechanism for_ :Nuc O nucleophillic addition under acidic…

A: Nucleophilic addition reaction is the reaction in which nucleophile which is electron rich species…

Q: SOLVE STEP BY STEP IN DIGITAL FORMAT DONT USE CHATGPT EXPLAIN EACH STEP E) NH₂

A: Lithium Aluminum Hydride (LAH) is a strong reducing agent which reduces almost all functional groups…

Q: Label the molecular shape around each of the central atoms in the amino acid glycine. Incorrect…

A: Molecular shape is depends on hybridization of Central atoms  and lone pairs present on central…

Q: A chemist mixes 7.5 g of carbon tetrachloride with 27. g of 2-ethyltoluene and 63. g of…

A: Given,mass of carbon tetrachloride = 7.5 gmass of 2-ethyl toluene = 27. gmass of isopropenylbenzene…

Q: What is the product when [Pt(CN)4]²- reacts with 2 NH3? The trend of trans effect is CN >> NH3. O…

A: Trans effect is defined as the effect seen in square planar complexes when ligand is substituted…

Q: 4) Refer to your Lewis structure for SeCl₂ What is the "molecular geometry" for selenium dichloride?…

A:

Q: Consider the following structures. (d) (b) (a) Which of the structures are chiral as drawn? (Select…

A: A molecule that does not have a plane of symmetry and which cannot form a superimposable mirror…

Q: The electronic configuration of iron, 26 Fe, is 1s22s22p63s23p63d64s². There are 6 electrons in the…

A:

Q: 2. CI The intermediate in the following nucleophilic aromatic substitution reaction has at least 5…

A: 2,4-dinitro chlorobenzene undergoes nucleophilic substitution by addition elimination mechanism when…

Q: The acid dissociation constant of acetic acid in methanol is 3.02 x 10-¹0. Calculate the pH of the…

A:

Q: Determine the number of hydrogen atoms in one mole of H₂O2. 3.01 x 1023 2.408 x 1024 5.2 x 1022 6.02…

A: An atom is a particle that contains protons and neutrons and is surrounded by electrons.

Q: 1A H2A 8A 3A 4A 5A 6A 7A He B C N O F Ne 18 28 Al Si P S Cl Ar Li Be Na Mg 38 48 58 68 7888 K Ca Sc…

A:

Q: at is the solubility (in mol/L) of PbCl₂ given that the Ksp is 4.90-10-18. question should be…

A: Solubility product constant= 4.90×10-18

Q: What is the ideal solubility of l2(s) at 25°C? T = 113 °C.

A:

Q: What is the compound with the highest acidity in the following pairs? Explain why CO₂H CO₂H or

A: Acidity is defined as the ability of a molecule to release protons.If a compound easily donates…

Q: Consider the diagnostic tests used in CHM 126 to detect the presence of a particular functional…

A:

Q: How many milliters of water are needed to dilute 80ml 5.00M KNO3(aq) to 1.00M?

A: C1​ is the initial concentration=5.00MV1​ is the initial volume=80 mLC2​ is the final…

Q: а НО +

A: The given organic reaction is reaction of cyclopentanol with succnic anhydride.

Q: The compound methyltrichlorosilane (SiCH3C13) has a vapor pressure of 0.197 atm at 25.0 °C. What is…

A: Vapor Pressure of methyltrichlorosilane The temperature of the vapor pressure  is The molar heat of…

Q: A galvanic cell is powered by the following redox reaction: 2CrO2−4(aq) + 8H2O(l) + 3Zn(s)→…

A: The given redox reaction is2CrO42−(aq) + 8H2O(l) + 3Zn(s)→  2Cr(OH)3(s) + 10OH−(aq) + 3Zn2+(aq)In a…

Q: For the reaction: 3A(g) + 3B(aq) → 2C(g) + D(1) Based on the following thermodynamic data, determine…

A: Given,The reaction:3 A(g) + 3 B(aq) 2 C(g) + D (l)

Q: Which of the following nuclides is most likely to undergo beta decay? O 185 Re 75 O 187 Re 75

A: Beta decay is a nuclear decay process in which a neutron is transformed into a proton, accompanied…

Q: Draw the product of the reaction shown below at physiological pH (pH = 7.4). Ignore inorganic…

A: The given reaction is deprotection reaction.While making peptide bonds, the amino group of an amino…

Q: Calculate the solubility of Mn(OH)2 in grams per liter when buffered at pH= 9.6.

A:

Q: Balance in acid medium: iodate ion + sulfite ion      :  then {HNO3}   :   iodine + sulfate ion

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: The probability of finding an electron in a region of space where its coordinates lie in the ranges…

A: The question is asking about the probability and values of n and l for ground state wave function of…

Q: Provide the IUPAC name for the structural condensed formula shown here. CH3 CH₂ CH₂ CH₂ CH₂ CH₂ CH3

A: The objective of the question is to find the IUPAC (International Union of Pure and Applied…

Q: d H | Mechanism: Mechanism: R ATP ビー -Ribose OP PPi ADP A ATP OH OH OH OP そそ OP R BH

A: Adenosine triphosphate (ATP) is the molecule that carries energy in the living cells of the…

Q: A galvanic cell at a temperature of 25.0°C is powered by the following redox reaction:…

A: T = 25oC=25+273=298K[Ca2+] = 6.08M[Cr3+] = 1.96 Mn=6 as 6 electrons are involved in the reaction

Q: In 13C NMR, carbon atoms with the lowest electron density have the largest chemical shift (largest…

A: Given that,In 13C NMR, carbon atoms with the lowest electron density have the largest chemical shift…

Q: Perform the balance in basic medium: H₂0₂(ac) + MnO4 → 0₂, + Mnozis) (ac) Calculate the normality of…

A:

Q: Suggest a mechanism for the following reactions. Each will require multiple types of concerted…

A:

Q: What is the major product? heat H 如 Illi Ho d 營業 H 2 HO

A:

Q: Part B You have a racemic mixture of d-2-butanol and /-2-butanol. The d isomer rotates polarized…

A: Polarisation can be characterized as a phenomenon generated by wave characteristic nature of…

Q: Assuming that the starting material is enantiomerically pure, a correct synthetic sequence will…

A:

Q: When a disaccharide forms, a / an linkage is created Select one: O a. alkyl: to any carbon in either…

A:

Q: The boiling point of liquid B is 95.5 \deg C at 1 atm (760.0 torr). Its vapor pressure at 73.5 \deg…

A: The boiling point of the liquid is .The pressure at boiling point is .The vapor pressure is .The…

Q: Please help me answer this question: Please identify the following compound based on the data…

A: Molecular formula of the given compound is C8H9BrO 1H NMR dataδ 1.4 (t, 3H) δ 3.9 (q,2H)δ 6.7…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.