Give atleast 3 scientists who made significant contributions in chemistry. Define: buffer, alkalinity, and acidity.

Q: A molecule of chloroform, CHCI3, has the same shape as a molecule of methane, CH4. However,…

A: The difference in boiling points between methane (CH4) and chloroform (CHCl3) can be explained by…

Q: Use the References to access important values if needed for this question. It is often necessary to…

A: Addition and substance of numbers in  scientific notation:  First the numbers are written in such a…

Q: Rank the acids below in order of increasing acidity. OH (Choose one) 1- weakest acid 2 3 NH₂ (Choose…

A: As  s-character of carbon atom increases its acidic strength increases,The correct of s-character of…

Q: A 800.8 g sample of strontium is subjected to a temperature change of +197.53K. The specific heat…

A: Mass of the sample of strontium (m) = 800.8 g Temperature change ∆T = 197.53 K Specific heat…

Q: Consider the following balanced chemical equation: H₂O2 (aq) + 3 I (aq) + 2 H+ (aq) → 13 (aq) + 2…

A: Recall the given reaction,                                  H2O2 aq + 3 I- aq + 2 H+ aq → I3- aq + 2…

Q: Consider a hypothetical molecule with the formula X4Y2Z. The atoms X, Y, and Z have…

A: The concept of molecular polarity is crucial in understanding the behavior and properties of…

Q: 1. Calculate the energy (in kJ) required to heat 0.399 grams of water from 103.2 ℃ to 153.0 ℃. 2.…

A: The heat evolved or absorbed is calculated by the multiplication of mass of the compound with its…

Q: Subject :- Chemistry   Identify the geometry of each atom in the structure

A: Cycloserine is a drug belonging to the class of immunosuppressants. Its compound structure is as…

Q: Determine the chemical formulas and the state of matter in which they'd be produced from the…

A:

Q: 1A H2A 3A 4A 5A 6A 7A He B CN OF NE Na Mg 3B 4B 5B 1B 2B Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni…

A: (1)  The given electronic configuration is,         1s2 2s2 2p6 3s2 3p6 4s2 3d8 Total electrons = 2…

Q: In the field of chemical kinetics, explain the concept of activation energy and its significance in…

A: Introduction: Activation energy is a key concept in chemical kinetics, representing the minimum…

Q: Excess sodium is reacted with 1.00 L of chlorine gas that has a density of 1.88 g/L to form sodium…

A:

Q: Determine the molarity (M) of the following solutions: 1.50 mol of NaOH in 1000. mL total volume of…

A: moles of NaOH = 1.50 mol Volume of the solution = 1000. mL = 1 L molarity of the solution = ? M

Q: Draw a structural formula for the major organic product(s) of the reaction shown below. 1. CH3l…

A: Alkyl amines react with excess of methyl iodide followed by treatment with Ag2O,water,heat to give…

Q: What is the relationship between the entropy change (ΔS) and the Gibbs free energy change (ΔG) for a…

A: The relationship between entropy change (ΔS) and Gibbs free energy change (ΔG) is a fundamental…

Q: 6) Calculate the OH-ion concentration for each of the following solutions and state if the solution…

A: A solution can be classified as: acidic if pH is less than 7 or [H+] > 10-7. Basic if pH is…

Q: A A certain liquid X has a normal freezing point of -5.60 °C and a freezing point depression…

A: This is colligative property,  Depression in freezing point.  Colligative properties depends on no.…

Q: How many global planes of symmetry are there in the molecule shown below?

A: A question based on symmetry. Structure of an organic compound is given whose total number of…

Q: The eclipsed conformation of one of the following molecules (along the 1,2 C-C bond) is unusually…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

Q: What is true about lithium, sodium, and potassium? They all have the same numbers of core electrons.…

A:

Q: How many valence electrons do the atoms in the circled column have? 3 Na Sodin Be Umum yan Posu Rb…

A: The elements in Group 17 of the periodic table, also known as the halogens, have seven valence…

Q: Consider the stration of 500 m of 0.10 M acetic acid (HC₂H₂O₂. K₁-18x 10)wth NaOH. Drag and drop…

A:

Q: If there is a table such as this one given with Ksp values, does a higher Ksp mean that the kidney…

A: The Ksp of a solution is the solubility product and will be the multiplication of concentration of…

Q: Describe the melting and boiling point trend of C5H12 isomers.

A: Structural isomers :- The isomers of a molecule having same molecular formula but different in the…

Q: The interaction of aligned sp3 orbitals on adjacent atoms is (increase/decrease) the internal energy…

A: The term "sp³ hybridization " refers to the mixing character of one 2s- orbital and three 2p -…

Q: Construct and write the equation for the complete combustion of hydrocarbon C.

A:

Q: Calculate the solubility at 25 °C of AgBr in pure water and in 0.12 M KCN. You'll probably find some…

A: From Aleks data resource the Ksp of AgBr is 5.35 x 10-13 AgBr ↔Ag++Br-At…

Q: An EDTA stock solution is prepared in a 1.5E+02 mL volumetric flask. The of the disodium dihydrate…

A: Mass of EDTA = 0.1339 g Molecular weight = 372.24 g/mol Number of moles of EDTA = mass/mol.wt. =…

Q: What is the relationship between the following two compounds? Br COOH anomers CI X CI S OH…

A: It is based on the concept of isomer. Here we are required to find the relationship between the…

Q: What is the mean free path (λ), in m, of Ar (σ=0.36 nm2) at a pressure of 131.7 Torr and 333.1 K?

A: The mean free path (λ) of a gas can be calculated using the following formula:   λ = (k * T) / (√2 *…

Q: What is the fundamental principle underlying the phenomenon of quantum tunneling, and how does it…

A: Introduction: Quantum tunneling is a remarkable phenomenon in which particles can pass through…

Q: What group of substance give positive result with molisch test?  (Glucose, Fructose, Galactose,…

A: The Molisch test is a chemical test used to detect the presence of carbohydrates, specifically…

Q: 2. For the following reactions, provide the structures for the products with appropriate…

A: alkenes undergo electrophilic addition reactions and free radical substitution reactions.

Q: Use the References to access important values if needed for this question. It is often necessary to…

A: Powers are added in multiplication 10n x 10m = 10(n+m)  Powers are substracted in division 10n/10m =…

Q: Which of the following compounds has the lowest dipole moment? Carbon tetrachloride Fluoroethane…

A: Two questions based on introduction to organic chemistry. First question is about dipole moment and…

Q: What is the theoretical basis for the occurrence of an SN1 reaction over an SN2 reaction in certain…

A: Introduction:The preference of an SN1 (substitution nucleophilic unimolecular) reaction over an SN2…

Q: Add curved arrow(s) to draw step 1 of the mechanism. Modify the given drawing of the product as…

A: Hydroxyl group can attack at the carbon linked to a leaving group to form Epoxide.

Q: Using the molecular orbital model, write electron Configurations for the following diatomic species…

A: The molecular orbital theory represents the energy state and spatial distribution of the electrons…

Q: Part A Give the IUPAC and common names (if any) for the following compound: CH3 T N-CH₂-CH3 Enter…

A: Primary amines are the amines in which the nitrogen atom is linked to one alkyl group and has two…

Q: Be sure to answer all parts. What alkyl halides are needed to prepare the following carboxylic acid…

A: Malonic ester contain an active methylene (-CH2-) is used for the alkylation. Active methylene…

Q: Give the symbol for an element that is 1) a halogen. 2) an alkali metal. 3) a noble gas. 4) an…

A: -> In periodic table halogens are kept in VIIA group ( group no. 17) -> In periodic table…

Q: The equilibrium expression for the hydrolysis of a weak base, A™, in water is: OK=[A]/[OH-][H3O+] K₁…

A: in water can be represented as follows:   A + H₂O ⇌ OH⁻ + HA   In this reaction, A is the weak base,…

Q: Predict the direction in which the equilibrium will lie for the following reaction C.H.COO(aq) +…

A:

Q: for molecule 2,6-dimethyloct-2-ene  draw/print the structural formula of your molecule (expanded or…

A: The given compound is an organic compound.Here we have to find out the structural formula,molar…

Q: Choose correct reagent(s) for the conversion below al propanoyl chloride with (1) AlCl3 and (2) H₂0…

A: Friedel-craft alkylation: Benzene reacts with alkyl halide in the presence of Lewis acid to do…

Q: Which is the strongest of the hydrohalous (HX where X = halogen) acids listed below? HF HI HCI None…

A: The acidity of hydrohalous acid increases as the size of Halogens atom increases. The acidity of…

Q: Draw the Lewis structure of CO. Include lone pairs and formal charges. Select Draw Templates More

A:

Q: At a given temperature, the equilibrium constant for the reaction A + B = 2C equals Kc = 10. Which…

A: The direction in which the reaction proceeds to reach equilibrium can be predicted by determining…

Q: Using standard reduction potentials from the ALEKS Data tab, calculate the standard reaction free…

A: Given,The cell reaction:N2H4(aq) + 4 OH-(aq) 4 Cu2+(aq) → N2(g) + 4H2O(l) + 4 Cu+(aq)From the ALEKS…

Q: If 5mL of DMF is used in an experiment, what would be the number of moles?

A: