A sample of nitrogen gas had a volume of 500. mL, a pressure in its closed container of 740 torr, and a temperature of 25 °C.  What was the new volume of the gas when the temperature was changed to 50 °C and the new pressure was 760 torr?

Q: What is the density of a sample of SO3 gas at 298 K and 2.0 atm? density of SO3 = [?] g/L Hint: What…

A: The density of a gas can be calculated by using the ideal gas equation. The ideal gas equation is…

Q: The IR spectrum below represents which of the following compounds? mr O a. O b. O d. شه myt

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Q: What is the product of Ethanoic acid that is reacted with LiAlH4 under distillation setup?

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Q: 5. What is the freezing point of a solution prepared by adding 239.0 g of copper(II) sulfate…

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Q: . What is the mole fraction of each gas in a mixture having the partial pressures of 0.467 atm of…

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Q: 1. Calculate the enthalpy of the following chemical reaction: a) CS₂ + 30₂ → CO₂ + 2S0₂ -> Given:…

A: Dear student , since you have posted multiple questions we will allow to solve only first question…

Q: The boiling point of pure ethanol (C₂H₂OH, MM = 46.07 g/mol) is 78.4 °C. A solution is made using…

A: we have to calculate boiling point of the glucose-ethanol solution

Q: (b) What do you mean by Q-value of s Explain nuclear reaction? the significance of a positive and a…

A: Given,  # Defination Q-value of a nuclear reaction. # significance of positive and negative Q-value.…

Q: Η Η Η H-C-C-C-C=O ΗΗΗΗ O O Ὁ

A: The line structure of the given Compound is :

Q: For the reaction C + 2H2 → CH4, how many moles of hydrogen are needed to make 170.6 grams of…

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Q: 1. For the reaction A + 2B A. [A][B]²/[C] B. [A][B][C] what is the correct equilibrium constant…

A: Dear student , since you have posted multiple questions we will allow to solve only first question…

Q: Write the reaction that occurs, and identify the conjugate acid-base pairs of the following…

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Q: All primary amines can be utilized to initiate a diazotization process. True or False

A: This  is the false statement because of the aliphatic primary amines does not go to initiate…

Q: Activity 3: Fill in the blanks with the correct answer. Imagine that you have a system that is…

A: According to Le-Chaletlier principle if we make any changes in reaction then the system will try to…

Q: μαζ Η Η H-C-C-30 ΦΗ Η Η Η Η Η H-c-9-9-c Η Η Η το Он 8. 11 Η Ο .. H_c-c-o-H . H H 0 H H-C-C-C-H 1 Η Η…

A: The naming of the organic compound is based on the functional group present in that organic…

Q: What major organic group would you expect when an acyl chloride is reacted with aqueous NaOH? Select…

A: In this question, we will see that which major product is formed after the reaction between acyl…

Q: What is the mass in grams of carbon dioxide that would be required to react with 17.1 g of LiOH in…

A: Given,  2 LiOH(s) + CO₂(g) → Li₂CO₃(s) + H₂O(l) mass of LiOH react = 17.1 g mass of CO2 required = ?…

Q: The element X has two naturally occurring isotopes: X50 (relative abundance = 30.15%, mass = 50.3)…

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

Q: 13) 16.0 grams of a certain food contain 130 calories. How many grams of this food would you need in…

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Q: what electrochemical reaction uses in Primary Battery - carbon zinc battery and why the…

A: #Part-1: In a Carbon-Zinc primary battery, Zn(s) undergoes oxidation to Zn2+ and acts as the anode.…

Q: When Cl2 is added to acetylene, C2H2, a new compound forms. How many liters of chlorine at STP will…

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Q: A2. Complete the following by drawing the structure of the main organic product(s) AB-AG for each…

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Q: The pH of a cyanoacetic acid/sodium cyanoacetate buffer in which the concentration of the weak acid…

A: It is given that, Molarity of weak acid, cyanoacetic acid = 0.140 M Molarity of its conjugate base,…

Q: The total pressure of the following system is used to monitor the progress of the chemical reaction.…

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Q: Today, water pollution has been highlighted to be the major environmental concern, driven by the…

A: Answer-b  Malaysia is abundant in water resources and available throughout the year.

Q: A cylindrical metal carries a current of 10 A. What will be its diameter, in mm, if the minimum…

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Q: 2 Al(s) + Fe2O3(s) 2 Fe(s) + Al2O3(s) ΔΗ= -848.0 KJ The mass of aluminium oxide produced when -2544…

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Q: Use the sample experimental data to calculate the mass of water lost    Mass of pan 15.110 g…

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Q: * Choose the pharmaceutical drug Aspirin and answer the following questions about the drug: * * What…

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Q: Question 16 Which one of the following is a physical change? A. CH4(g) +202(g) → 2H₂O(g) + CO2(g) C.…

A: Q-16)  A physical change is :-  H2O (s) →H2O (l) (Option- C)

Q: What time of intermolecular interactions occur when the tertiary amine of Tapentadol binds to its…

A: The tapentadol's tertiary amine group is protonated, making the nitrogen core positive in charge and…

Q: The overall formation constant for Fe(CN)6³ is 1.0x1042. K₁= [Fe(CN)6³-] [Fe³+][CN16 =1.0x104² 3-…

A: Given :  Kf = 1.0 x 1042  [Fe+2] = 0.15 M  [CN-] = 1.20 M

Q: The total pressure of the following system is used to monitor the progress of the chemical reaction.…

A: The reaction for which the total pressure, Ptotal(kPa) data is given is: SO2Cl2(g) → SO2(g) + Cl2(g)…

Q: Find the Miller indices of the planes that intersect the crystallographic axes at the distances: (i)…

A: Miller indices are the group of three numbers that indicates the orientation of a plane or set of…

Q: Determine the number of atoms of O in 26.6 moles of Al₂(SO₄)₃.

A: given,  moles of  Al₂(SO₄)₃. = 26.6 moles

Q: Identify the most acidic compound between the following molecules Draw the resonance structures of…

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Q: How much of the suspending agent is needed to prepare a 60-mL preparation of Aluminum hydroxide gel…

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Q: What is the major attractive force in O2? a.London dispersion b.dipole-dipole c.ionic d.none of…

A: O2 is a non polar molecule.

Q: A sample is known to contain NaOH (MM 40.02), Na₂CO3 (MM 105.79), NaHCO, (MM 84.01) or a compatible…

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Q: a. Identify the most acidic compound between the following molecules: fice prac 19²3 CN CN HO. HO A…

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Q: 3. Silver button batteries used in calculators is an example of a A. electrolytic cell B. fuel cell…

A: Introduction :-  Primary cell :-  In primary cell, cell reaction stops when the chemicals are…

Q: 2. Which of the following correctly describes reduction? A. The loss of electrons and the…

A: Dear student , since you have posted multiple parts questions we will allow to solve only first…

Q: Select the structure that best fits the 13C NMR spectrum. 200 180 160 140 120 100 80 60 40 20 ppm…

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Q: If 1000 g of water from Angat River contains 0.0075 g of Ca²+ ion, what is the concentration in ppm…

A: Given: Mass of Ca2+ ion = 0.0075 g Mass of solvent = 1000 g

Q: You used a stock 0.200M solution of CuSO4 for constructing a calibration curve. Assuming the density…

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Q: What is being oxidized and reduced in this reaction? Fe(s)+CuSO4(aq)-> FeSO4(aq)+Cu(s)

A: In the given reaction, we have to determine the element that is oxidized and reduced

Q: For the decomposition of A into B and C, what is the order of the reaction given the following data?…

A: Putting the value in 1st order ,2nd order 3rd reaction,

Q: 2. At 500 K, butadiene gas converts to cyclobutene gas. CH₂ ·| CH₂=CH-CH=CH₂ CH₂ -CH From the…

A: The conversion of butadiene gas to cyclobutene is purely first order reaction. The rate of decrease…

Q: a) b) c) e) 10 HBr CH3CH₂OOCH₂CH3 1. Hg(OAc)2, H₂O 2. NaBH4 1) BH3/THF 2) H₂O2 NaOH (aq) cold Cl₂,…

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Q: 1- The acid-dissociation constant for chlorous acid, HCIO₂, at 25C is 1.0×10². Calculate the…

A: We are authorised to solve only one question at a time. Please post rest of the questions…

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.