Chemistry Question

Q: Concentrated H 2SO 4 (MW = 98.08 g/mol) is 18.0 M and has a density of 1.84 g/mL. What is the percen...

A: % Concentration =mass of solutemass of solution×100 First calculate the molarity of H2SO4 in the new...

Q: Consider a buffer solution contains 0.20 M NaF and 0.30 M HF:- (Ka (HF) = 5.0 x 104 What is the pH o...

A: According to Handerson's equation  pH = pKa + logsaltacid=-log[5×10-4]+log0.200.30=-log5-log10-4+log...

Q: (Organic Chemistry) Name the following compounds:

A: The question is based on the concept of writing IUPAC NAMING. First we make longest carbon chain.we ...

Q: Consider a process in which the entropy of a system increases by 105 J K−1 and the entropy of the su...

A: Given information,    The entropy of a system increases by 105 J K−1    The entropy of the surroundi...

Q: The correct decreasing order of reactivity toward nucleophilic addition reactions is CHO H. II III I...

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Q: Compounds OH HO A OH NH2 E F H. The most basic compound is Choose... + The compound(s) that is (are)...

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Q: Write a balanced nuclear equation for the reaction in which oxygen-15 undergoes positron emission.

A: To write a balanced nuclear equation for the reaction in which oxygen-15 undergoes positron emission...

Q: 5. Chloral hydrate (C2H3C1302) is a drug formerly used as a sedative and hypnotic. It is a compound ...

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...

Q: The major product for the following reaction is H. 2CH3OH H+ OCH3 OCH3 OCH3 H H. OCH3 HO. OCH3 OCH3 ...

A: Aldehyde reacts with alcohol in the presence of acid forms an unstable product hemiacetal which furt...

Q: What kind of intermolecular forces act between a hydrogen chloride molecule and a nitrogen trichlori...

A: The compounds given are hydrogen chloride i.e HCl and nitrogen trichloride i.e NCl3. Since in HCl, t...

Q: Which of the following statements is correct? In a neutral solution always pH = 7 In a neutral solut...

A: Given options,

Q: Write the cell notation based on the description of the following information: Iron (III) ions are r...

A: Given : Iron (III) ions are reduced to iron (II) in presence of platinum i.e Pt electrode. And tin i...

Q: Rank the following particles by INCREASING their size (lowest first). Rb+ Te2-  In3-  Xe A, In3- ...

A: A multiple choice question based on the size of elements, which is to be accomplished.

Q: Give the structures of the intermediates and products E through I.

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Q: Identify the oxidizing and reducing agents in the following:(a) 8H⁺(aq) +6Cl⁻(aq)+ Sn(s) +4NO...

A: Oxidation is the process in which electrons are lost by an element and the oxidation number of the e...

Q: What is an allotrope? Name two Group 4A(14) elementsthat exhibit allotropism, and identify two of th...

A: The element of group 4A(14) is shown below: Carbon (C) Silicon (Si) Germanium (Ge) Tin (Sn) Lead (Pb...

Q: About defroxamine (all are correct except   Select one: it is a water instable compound produced ...

A: Deferoxamine, is also called as desferrioxamine. This medication binds iron and aluminum.  Brand nam...

Q: Show how the reaction of an allylic halide with a Grignard reagent might be used to synthesize the f...

A: Hydrocarbons are the compounds of hydrogen and carbon, it can be classified into mainly two types 1)...

Q: 1.4 PH3 and NH3 moleculea are the same shape but the molecules are non-polar and polar respectively....

A: NH3 is polar because of electronegativity difference between Nitrogen atom and Hydrogen atom is larg...

Q: How many pi-bonds (Tt) in 1,5-heptadiyne? O 3 O 5 O 2 O 4

A:

Q: Consider the following unbalanced reaction: PA(s) + F2 (g) → PF, (9) What mass of F2 is needed to pr...

A: One mole of white phosphorus reacts with six moles of fluorine to produce four moles of phosphors tr...

Q: (a) Give the names and chemical symbols for the three isotopesof hydrogen. (b) List the isotopes in ...

A: (a) Hydrogen exists in three isotopic forms. The names and the symbols of the isotopes of hydrogen a...

Q: Calculate the positive and negative charge in a 350mL flask of water?

A: For calculation of positive and negative charge in 350 mL flask of water , first of all we calculate...

Q: What is the molarity of a solution of a polypeptide which has an osmotic pressure of 0.139 atm at 37...

A: Given : Osmotic pressure = 0.139 atm  And temperature = 37.0 oC  

Q: The first page is connected to the second page

A: Since you have asked multiple question, we will solve the first question for you. If you want any sp...

Q: What is the difference between a homogeneous and a heterogeneous catalyst?

A: Catalyst is the chemical substances that affect the rate of a chemical reaction. It does not involve...

Q: There is 0.02807 L of a drug in a syringe. How many of these numbers are significant? 2 3 5 ...

A: The volume given is 0.02807 L.  

Q: Can i get help with this problem please

A: In case of nitriles in IR there should come sharp peak at 2250 cm-1; in both of the attached spectra...

Q: Place the following elements in order from MOST METALLIC to LEAST METALLIC                     P    ...

A: Here given elements are I and V groups ➡️ The Metallic character increases as you move down the peri...

Q: 1.1 The density of a gas was measured at 1 50 atm and 27 degree celsuis and found to be 1 95 g/L. Ca...

A: Since you have asked multiple question, we will solve the first question for you. If you want any sp...

Q: How many moles of phosphorus pentachloride, PCl5, are present in a sample that contains 4.60 moles o...

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Q: A chemistry student weighs out 0.0623 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask ...

A: Given: The mass of acrylic acid added to 250 mL of the volumetric flask is 0.0623 g. The molarity of...

Q: Name the element that corresponds to each electronic configuration. 1s^2, 2s^2, 2p^6, 3s^2, 3p^3

A: Electronic configuration refers to the systematic arrangement of electrons in the various shells and...

Q: What is the correct name of this compound? NH, Opisopropylaniline Omisopropylaniline 2sopropylanilin...

A: If -NH2 is attached in -C6H5 ring then the compound is known as aniline.For naming of substituted an...

Q: A salt of each of the ions in Table is dissolvedin water. A Pt electrode is immersed in each solutio...

A: Electrolysis is the process in which the decomposition of the metal occurs when the liquid solution ...

Q: strongest hydrogen bonding

A: Strength  of Hydrogen Bonding is directly proportional to Polarisable of OH bond .

Q: Explain how the entropy changes in the following cases (a) a Carnot engine, (b) a real engine, and (...

A:

Q: The compound noradrenaline contains 56.80% C, 6.55% Н, 28.37% О, and 8.28% N by mass. What is the em...

A: To solve thia problem we have consider that mass of given compound is 100 g  Then according to the p...

Q: when an alcohol is oxidised, what atoms are removed from it ?

A: By the process of oxidation, alcohols are converted to aldehydes and ketones. This reaction happens ...

Q: Which of the following is(are) acetal он OCH, II II IV

A: When aldehyde reacts with alcohol in the acidic medium it forms acetal.   

Q: A concentrated potassium hydroxide solution is 45.0% KOH by mass and has a density of 1.44 g/ml at 2...

A: In order to find out the amount of KOH present in 1 L of a KOH solution, first, find out the mass of...

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A: Ans-11: An exchange reaction is a reaction that involves the exchange of ions between compounds. One...

Q: Choose the aqueous solution with the lowest vapor pressure. These are all solutions of nonvolatile s...

A: Vapour pressure decreases with increasing of number of non-volatile solute particles in the solution...

Q: Please only answer part a.

A: The equation given is,  

Q: The following information is given for antimony at latm: AHvap (1440.00°C) = 1.605 × 10° J/g AHfi1s ...

A: Given : Mass of antimony = 42.60 g Initial temperature of antimony = 720.00 oC And final temperature...

Q: Which of the following compounds is least soluble in hexane (CH3CH2CH2CH2CH2CH3)? Group of answer ch...

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Q: Which of the following statement is correct An alkoxide ion is weaker base than hydroxide ion. O Alk...

A: We need to compare the basicity of following bases: Alkoxide ion: RO-, where R = any alkyl group Hyd...

Q: Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are ...

A: NH4NO3 + NaOH → NaNO3 + NH3•H2O. There is no precipitation takes place during this reaction.  2)Yes,...

Q: Label the α and β carbons in attached alkyl halide. Draw all possible elimination products formed wh...

A: Biomolecular elimination (E2) reaction: E2 reaction involves a one-step mechanism in which carbon-hy...

Q: Can i get help with this problem please

A: Solution: Q.1. The name of the given compound is acetophenone. The main IR absorption peaks for this...