A sample of He gas was confined to a container at constant temperature 5.00 ml when the pressure applied is 6.50 atm. Determine the volume of the He if the pressure is reduced to gas 2.00 atm.

Q: A chemical reaction occurs when 0.378g of Mg is heated in a Nitrogen environment. The product of the...

A: Mass of mg = 0.378 g Mass of product = 0.456 g

Q: Draw the mjor product of both question with mechanism asap

A: Given structure of reactants. 

Q: An acid constant / base constant that is higher than 1 indicates that: The acid is a weak acid and t...

A:

Q: If the acid ionization constant for HX is 5.44 x10-6 at 25 °C what is the ionization constant for th...

A: Acid Ionisation constant Ka = 5.44*10-6  Let us suppose Ionisation  constant for conjugate base is d...

Q: What are the factors that affect the rate of reaction? Explain each in at least 10 sentences.

A:   Chemical kinetics it is a branch of physical chemistry, it deals about rate of reaction , factors ...

Q: Save What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2...

A: Weight of Cr2O3 = 40.0 gm Weight of Al = 8.00 gm  

Q: the combustion of 0.0272 mole of a hydrocarbon produces 1.9609 g h2o and 3.5927 g co2. what is the m...

A: Given,  Combustion of 0.0272 mole of a hydrocarbon produces 1.9609 g H2O and 3.5927 g CO2. Then, fin...

Q: BASES: Base is one of the four classification of compounds. (Sentence 1: Bases will turn red litmus ...

A: Bases-  Any substance which contains OH ion or donate the lone pair of electron. 

Q: 3. Commercial concentrated aqueous ammonia is 28% NH3 by mass and has a density of 0.90 g/mL. What i...

A:

Q: ACIDS: Acid is one of the four classification of compounds. (Sentence 1: Acids can have a chemical f...

A: Physical properties of acids:

Q: Propose a synthetic scheme for the synthesis of 3-pentanone from ethyl bromide and cyanide as your c...

A: To synthesize the ketone product detail solution is given below

Q: The preparations of two aqueous solutions are described in the table below. For each solution, write...

A: Given table is :   

Q: thermometer A sample of glass, which has a specific heat capacity of 0.670 J'g.°c, is put into a cal...

A: Equation for heat energy ( q ) is given by,   q = m × C × ΔT    m = mass of substance  C = specific ...

Q: In general, native (folded) proteins are in equilibrium with denatured (unfolded) forms: Protein(fol...

A:

Q: Given the thermochemical equation 2502(g) + O2(9) - 2503(9), AH'rxn= -198 kJimol, how much heat is e...

A:

Q: Write the balanced NET ionic equation for the reaction when (NH4)2CO3 and CaCl2 are mixed in aqueous...

A: A balanced equation can be given as a reaction in which the number of atoms of each element is equal...

Q: What is the average mass, in grams, of one Zna Multiple Choice O 1661 x 10 24 O 65.39 amu O 65.39 g ...

A: Molar mass of Zn = 65.38 g/mol  

Q: Q3/ A/ What is the concentration and density of a solution in mol/L when 80 g of calcium carbonate, ...

A:

Q: the choices are: (1): weak or strong (2): dipole-dipole dipole-induced dipole ion-dipole ion-reduced...

A: Answer: 1) The low solubility of CH3CH2CH2CH2CH2OH in water. In that the Hydrogen bonding interactio...

Q: Which of the following is INCORRECTLY matched? Select one: a. Br with acidified Fe(NO3)3 and toluene...

A: To identify the incorrectly matched statement.

Q: Give the IUPAC name using 1993 recommendations for organic nomenclature.

A: The IUPAC name of the compound can be written on the basis of the number of carbon atoms in the main...

Q: Glycerol gave a positive result to (acrolein test). When Benedict’s reagent was added to Sucrose + H...

A: Acrolein test is used for the detection of presence of glycerol or fat. Benedict test is used for th...

Q: Discuss nanocarbons and its three classes: fullerenes, carbon nanotubes, and graphene.

A: Nanocarbons are carbon-based nanomaterials, and have unique physico-chemical properties.

Q: Calculate the pH of an acetic acid/acetate buffer after the addition of 21.60 mL of a 0.200 M NaOH t...

A:

Q: How much heat is absorbed by liquid water that weighs 550 grams as it is heated from 25C to 95C?

A: Given, mass of water m= 550 g T1=25 ℃  T2=95℃ Cp for water = 4.184 J g-1℃-1 heat q=?

Q: calculating the concentration of acid in each buffer

A: Concentration of acetic acid (weak acid) = 1.10 M Concentration of sodium acetate (salt) = 0.90 M pK...

Q: 1. 3C2H5OH) + 2O2ig) 5CO2(9) + 2H2O(@) 2. 2NO2(9) 2NO(9) + O2(9)

A:

Q: Enter your answer in the provided box. Calculate the standard entropy change for the following react...

A:

Q: what minimum mass of cobalt (ii) nitrate must be added

A:

Q: Calculate the mass of excess reagent remaining at the end of the reaction in which 90.0 g of SO2 are...

A: To find the limiting/excess reagent,  • Convert the mass of reactants ( SO2 and O2 ) to moles.  •  D...

Q: 9- Calculate the molar concentration of HNO3 (63.0 g/mol) in a solution that has a specific gravity ...

A: Molarity is a concentration term for a solution. The molarity of a given solution is defined as the ...

Q: Click in the answer box to activate the palette. Balance the equation representing the reaction betw...

A: Given statement is :  Balance the equation representing the reaction between Iron(III) oxide, Fe2O3,...

Q: How much heat is required to raise the temperature of 1.5 x 103 g of water from 45'F to 130."F? The ...

A: Given-> Weight of water = 1.5 × 10^3 gm T1= 45°F = 8.3°C T2=130°F = 55.5°C Specific heat of water...

Q: The reaction between nitric eside (NO) and oxygen to form nitrogen dieside (NO,) is a key step in ph...

A: Given data,Mass of NO2 produced=3.21gData required;Molar mass of NO2=46g/molMolar mass of O2=32g/mol

Q: CH CH3 ON CH3 HNO, CH HSO, .CH CH NO2

A: ->If electron donating group present then ortho ,para product is major. ->If electron withdraw...

Q: Be sure to answer all parts. The reaction between aluminum and iron(III) oxide can generate temperat...

A:

Q: How many protons, neutrons, and electrons are there in a neutral atom of 113In (indium-113)?

A: Atomic number of indium = 49 Atomic mass of indium = 113

Q: 4- Titrimetric methods : are quantitative methods that are based on determining the mass of a pure c...

A: This is basically statement of gravimetric analysis

Q: Metals lose electrons under certain conditions to attain a noble gas electron configuration. How ma...

A: Given -  Na  

Q: Calculate the mass of excess reagent remaining at the end of the reaction in which 90.0 g of so2 are...

A: Sulfur dioxide reacts with oxygen to form sulfur trioxide. The equation for the balanced chemical re...

Q: Click in the answer box to activate the palette. Determine the empirical formula of a compound havin...

A:

Q: What    volume    of    10%    NaCl    must    be    added    to 10 mL    of    water    to    make ...

A:

Q: How many milliliiters of a 1.25 M HF are needed to make 150 mL of a 0.450 M hydrofluoric acid/fluori...

A:

Q: You are asked to prepare a 1.000L of a 6.000 M of sodium hydroxide. Calculate the mass of solute req...

A:

Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first st...

A: Chemical reactions can be added, subtracted, or multiplied like an algebraic equation.

Q: What are the different types of hybridization?

A: Given question is : What are the different types of hybridization = ?

Q: 2. Briefly explain the application of the functional group "Cis-Trans isomers for night vision" and ...

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

Q: Give four major contributions of Jabir ibn Hayyan to the study of the central science

A: Jabir (known as Geber in western history) is generally known for his commitments to science. He unde...

Q: spontaneous. Write an equation for the coupled process and calculate the equilibrium constant for th...

A:

Q: Methane burns and give off 192 Kcal/Mol, assuming 90% effeciency in heat transfer. what mass in KG o...

A: Answer: In the process of heating up ice, there will be three steps,  1. Heating of ice up to its me...

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.