Calculate the density of a gas if the pressure in a vessel is 3.2 atm at 182 degrees Celsius. The molar mass of the compound is 52.2 g/mol.

Q: Consider the reaction: MnO2+ 4HCL --> MnCl2+ Cl2 + H2O a)If 45g of MnO2 and 45g of HCl react, whi...

A: The number of moles of MnO2 (n1) is calculated as follows:

Q: Calculate the change in entropy when one mole of metallic aluminum is heated at one bar pressure fro...

A: Enthalpy of fusion for 1 mole of Al is 10699.45 J/molInitial temperature = 25 degC = 298.15K KFinal ...

Q: 11

A: Given,Mass of sample = 24.865gPressure = ?Volume = 2.2855LTemperature = 374.21K

Q: At 200.0 mL flask of an unknow gas was placed in a hot water bath. The temperature of the bath was f...

A: Number of moles f unknown gas can be determined using Ideal gas equation as follows,

Q: 1. Acetate buffers are used in biochemical studies of enzymes and other chemical components of cells...

A: The Ka value of acetic acid is 1.8 × 10-5.pKa = -log(Ka) = -log(1.8 × 10-5) = 4.74.concentration of ...

Q: What is the percent by mass of 86.3 g of sodium chloride dissolved in 918.6 g of water ?

A: The mass percent of a component present in the mixture is calculated by dividing the mass of that co...

Q: What is the molarity of a solution that has 5.024 X 1023 atoms of Glucose (C6H12O6)?

A: Assuming there is one litre of solutionGiven5.024x 1023 atoms of glucose are present

Q: Estimate the number of millimoles of Ca(NO3) 2  that contain 4.78 x 1022 formula units of Ca(NO3)2. ...

A: The term formula unit in chemistry can be defined as the empirical formula of a given covalent or io...

Q: Students in a lab exercise were asked to choose among a sample of different metals to react with a s...

A: Nickel (II) react with copper.

Q: 4 ounces of 80 proof liquor is equilvaent to how many standard drinks?

A: Given,4 ounces of 80 proof liquor

Q: 2.25 g of C6H12O6 is burned in a bomb calorimeter containing 550. g of water and the temperature inc...

A: Given,Mass of C6H12O6 = 2.25 gMass of water = 550 gInitial temperature = 25.0oCFinal temperature = 3...

Q: Balance the equation by inserting coefficients as needed. equation: Al4C3+HCl⟶AlCl3+CH4

A: For a given chemical reaction, the term chemical equation can be defined as its symbolic representat...

Q: A mixture of nitrogen and argon gas is compressed from a volume of 67.0L to a volume of 60.0L, while...

A:

Q: Hydrogen peroxide is an effective oxidizing agent, accepting two electrons. It will oxidizediron(II)...

A: Reaction of Fe(C2O4)2- with Hydrogen peroxide is given below:

Q: Why, in liquid state, is H2O a London Force and hydrogen bonding. I understand why it is hydrogen bo...

A: All three kinds of intermolecular forces (Hydrogen bonding, dipole-dipole interaction and London for...

Q: Calculate the amount of heat needed to boil 166.g of ethanol (CH3CH2OH), beginning from a temperatur...

A: Boiling point of ethanol is 78.37 °C.The change in temperature taking place is,

Q: To what volume should you dilute 25mL of a 10.0 M HCl solution to obtain a 0.250 M solution?

A: The relation M1V1=M2V2Where M1=concentration in molarity of the concentrated solutionV1=volume of th...

Q: You want to design a breathing machine that will bring 500mL of air into lungs you begin with 100 mL...

A: According to the Boyle’s law, within a closed system at a constant temperature, the absolute volume ...

Q: Question #2 I couldn't take a single picture

A: Vapor pressure of water at 25oC is 23.8 mmHg.

Q: Question #3 @ top of page

A: 2,4-diol can be synthesized from 2,4-dione by the hydride reduction.The reducing agent used for the ...

Q: It was assumed: a) Before any acetic acid was added, essentially all the indicator was in the In- fo...

A: Henderson-Hasselbalch equation is shown in equation (1) where pH is for the solution, pKInH is the e...

Q: fill in the blanks

A: For a given chemical compound or element, the number of moles refers to the ratio of the mass to tha...

Q: Be sure to answer all parts. Predict the product of the following reaction and then draw a stepwise ...

A: Here, in the given reaction, Bromide ion substitutes the -OH group and leads to formation of Alkyl b...

Q: The molarity of a solution prepared by dissolving 0.100 mol of Ca(NO3)2 in enough water to make 500....

A: The molarity of the solution can be calculated as,

Q: Photovoltaic cells convert solar energy into electricity. Calculate the wavelength of light (in nm) ...

A: In the photoelectric effect, the threshold work function can be defined as the energy which is requi...

Q: What is the percentage of C2H2 when 50.0 g of CaC2 reacts whith an excess of water to yield 13.5g C2...

A:

Q: Im having trouble solving this.

A: The given reaction (2) can be obtained by multiplying the reverse of reaction (1) with 2.

Q: Draw 5-ethyl-7-methyldec-3-yne

A: The structure of the compound 5-ethyl-7-methyldec-3-yne.

Q: Write a step by step procedure for the preparation of 100 mL of 0.2 M CH3COOH solution. You will beg...

A: Given,V1 = 100 mlN1 = 0.2 MN2 = 0.83 MV2 = ?

Q: Gven: 10mL of Hd Dotll= mass of NaOH2.013a MHC- 1.0 OM M Naot-1.0OM NaOt(s)+HCI CaqNaulaa+H2O) Atrin...

A: The number of moles of a species is calculated by expression (1), in which, n is the number of moles...

Q: Calculate the enthalpy of combustion of propane, C3H8(g), for the formation of H2O(g) and CO2(g). Th...

A: The standard enthalpy of formation is also known as the standard heat of formation of a compound. It...

Q: During the mixing step, briefly discuss why gentle mixing of the solution is necessary after the add...

A: For efficient and effective water treatment, gentle mixing of the solution is necessary after additi...

Q: Barium Hydroxide, Ba(OH)2, is reported to have a Ksp of 1.4 x 104 at 25 °C a. What is the molar solu...

A: The term molar solubility can be defined as the number of moles of a given substance that can be dis...

Q: 36 ouncew of beer is equivalent to how many standard drinks?

A: 12 ounces of standard beer (regular) contains 5% alcohols.24 ounces of standard beer (regular) conta...

Q: Naphthalene melts at 353 K. The vapor pressure of the liquid is 9329.0 Pa at 407 K and 28,638 Pa at ...

A: The delta H fussion of the reaction is calculated as,

Q: Write a balanced equation for the combustion of C3H8(g) (propane) -i.e. its reaction with O2(g) form...

A: The balanced equation is:

Q: Consider the reaction. 2Pb(s)+O2(g)⟶2PbO(s)   An excess of oxygen reacts with 451.4 g of lead, formi...

A: In the reaction 2 moles of lead react with 1 moles of oxide to give 2 moles of lead oxide.

Q: Hi, my question pertains to Quantum Theory and the Electronic Structure of Atoms. The problem states...

A: Energy is given by the equation:

Q: The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlor...

A: The three step mechanism of the given reaction is,

Q: Orbital Notes.pdf Mail Sydney. Brown@stma b My Questions bartleby 6.8 Extensions of Electro X Colleg...

A: Cobalt in the given complex has +3 oxidation state and with this oxidation state, the electronic con...

Q: Each 5 mL teaspoon of "Extra Strength Maalox Plus" contains 450 mg of magnesium hydroxide and 500 mg...

A: Given information:Volume = 5 mLMass of magnesium hydroxide = 450 mgMass of aluminum hydroxide = 500 ...

Q: 3.15 mol of an unknown solid is placed into enough water to make 150.0 mL of solution. The solution'...

A: Given information:Moles of unknown solid = 3.15 molVolume of solution = 150.0 mLTemperature rises by...

Q: What is the chemical formula for the limiting reactant in the reaction shown? chemical formula:...

A: According to the question, on the reactant side 5 moles of H2 and 4 moles of NO are present. On the ...

Q: A 232 lb fullback runs 42 yd at 19.8 +_ 0.1 mi/h. what is the uncertainty of his position?

A: Given information:Mass = 232 lbVelocity =19.8 ± 0.1 mi/h

Q: 2. When oxalic acid is added, the iron (II) ions precipitate as iron(II) oxalate dihydrate.Fe2+ (aq)...

A: The complete given reaction is,

Q: What is the concentration, in molarity, of the solution formed when 50.0 mL of a 1.630 M solution of...

A: In the dilution process, the relationship between initial and final concentrations and volumes of so...

Q: What would the density of oxygen has in grams per liter be if the gas has a pressure of 2.93 atm and...

A: Given,P= 2.93atmT= 313.7K

Q: Please solve for a and b

A:

Q: A sample of a compound is found to contain 21.82 g of carbon, 9.16 g of hydrogen, 20.42 g of oxygen,...

A: Mass of compound is,

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.