What volume of hydrogen gas (in mL) at 799 mm Hg and 26 °C can be produced when 2.8 g of MgCO3(s) are put into an Erlenmeyer flask containing 215 mL of 0.214 M HCl(aq) ? 1 MgCO3(s) + 2 HCl(aq) → MgCl2(aq) + CO2(g) + H2O(l)

Q: Calculate the ∆H for the reaction: N2O4 + CO → N2O + CO2

A: Given that -  Following Reaction -  N2O4 + CO → N2O + CO2  After balancing it can be written as -…

Q: These electromagnetic waves have the shortest wavelength and the most energy. Ultraviolet Gamma…

A: Which electromagnetic waves have the shortest wavelength and the most energy ?

Q: Determine if the acid-base neutralization reaction of hydrochloric acid (HCI) with sodium hydroxide…

A: Given,  ΔHf0  NaCl  =  - 411.0  kJ/mol ΔHf0 H2O  = - 285.8 kJ/mol ΔHf0 HCl  =  - 92.3 kJ/mol ΔHf0…

Q: oues- ow mamy moles of HCI ane in 53.4mL of a L.ll M HeL solution 2

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Q: What is the process of making chlorine from the electrolysis of sodium chloride called? chlor-alkali…

A: (1) When sodium chloride is electrolysed , then sodium chloride decomposed with water to give sodium…

Q: 1. MgBr 2. Нао 1. NaOEt 2. EtO OEt NaOH NaOEt Br H20, A 3. НС, Н,О, д 2. HCI NaOH A

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Q: What volume in liters is occupied by 39.1 g of C2H2 at 445 mm Hg and 46° C?

A: Given,  The volume in liters is occupied by 39.1 g of C2H2 at 445 mm Hg and 46° C is:

Q: Which question will your experiment investigate? (select one and delete the others) How does…

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Q: What is the highest possible degeneracy of a vibration of a Cr(CO)6 molecule? Explain your answer.

A: The UV absorption spectrum of Cr(CO)6 (chromium hexacarbonyl) in gas phase is investigated by…

Q: Which one of the following is not a conjugate acid-base pair? A. NH3 and NH4 B. H₂PO4 and HPO42- C.…

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Q: Label the following diagram: s L- :: radio waves :: X-rays : gamma waves :: microwaves :: visible…

A: The given image is an electromagnetic spectrum of different electromagnetic waves arranged in…

Q: How many moles of B are there in a sample of B that contains 2.96×1024 atoms? moles

A: 1.Boron is represented as B 2. Avogadro's number = 6.023× 1023

Q: Collision Theory and Rates 1. Describe how the activation energy of a reaction affects the overall…

A: Activation energy is extra energy required to form activated complex.

Q: Specify both the alcohol starting material and the reagents you would use in each step in a…

A: Here we are required to find the Starting material and reagent required for the formation of desired…

Q: For the reaction 2C03+ (aq) + 2CI- (aq)→2C0²+(aq) + Cl2 (g). E° =0.483 V what is the cell potential…

A: Cell potential is calculated using Nernst equation .

Q: Why is the ksp at two different temperatures different for both solutions?

A: Solubility product (Ksp) : The product of concentration of ions raised to the suitable powers in a…

Q: Answer the two questions in the space provided. Explain your thinking for both question, on why you…

A: Chemical kinetics can be defined as the branch of chemistry that deals with rates of chemical…

Q: The number of electrons participating in conduction is given by for a specific energy range 2me. Ne…

A: Given Nc = V3 π22 meh22/3 EF3/2 - (EF - 2.2 kBTT = 300 Kme = 9.1 × 10-31 kgh  = 6.62 × 10-34 kg m2…

Q: What allotrope of sulfur is is stable at room temperature? S8 S16 S2 S16

A: We will discuss about the allotropes of Sulfur.

Q: What volume of carbon dioxide gas (in mL) at 834 mm Hg and 25 °C can be produced when 2.3 g of…

A: Given-> Pressure (P) = 834 mmHg = (834 / 760)atm=1.097atm (1 atm = 760 mmHg) Temperature (T) =…

Q: If you begin with 19.76 grams of Al(s) and 15.14 grams of O2(g) , how many grams of Al2O3(s) can be…

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Q: Specify the number of possible isomers of iodotoluene. Write the name of one of these isomers.…

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Q: Calculate the∆H for the reaction (6 points) NO(g)  + O(g)   →   NO2(g) Given the following   ∆H…

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Q: (b) molecule. Given atomic masses of H and Cl are 1.008 and 35.45 amu, respectively The first line…

A: For pure rotational spectrum, the energy of transition is given as, εJ=h8π2IcJ(J+1)…

Q: How many grams of zinc sulfide are used to produce 1.28 grams of zinc oxide ?

A: Detail mathematical calculation is shown below

Q: Determine the balanced chemical equation for this reaction. C3H18 (g) + O2 (g)→CO2(g) + H2O(g) Enter…

A: In balanced chemical equation the number of atoms in the both side of the equation must be equal.

Q: Give IUPAC names for the following compounds. Abbreviate ortho (0), meta (m) and para (p), no…

A: (1) Ortho-bromopropyl benzene

Q: If the vapour pressure of a liquid is 0.850 atm at 20°C and 0.897 at

A: Hi! Thank you for the question As per the honor code, We’ll answer the first question since the…

Q: Label each of the following changes as an OXIDATION or a REDUCTION a. H3AsO4 to As b. O2 to H2O

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Q: Write Ksp expression for the following equilibria.…

A: Ksp or solubility product constant of a sparingly soluble salt is defined as the product of the…

Q: Which statement describes the trend of ionization energy in the periodic table? 19. (a) increases…

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Q: Clear All CH;CH,C-H Lowest boiling point CH,CH2CH2CH3 Intermediate boiling point Highest boiling…

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Q: Br2 12. Ph - Br Br Br A. ph B. ph' C. Ph Br Br CHCI3 (3. Ph A koH CL Cl Ci CI CI cl A. B. Ph C. Ph…

A: ->Alkene has nucleophilic character hence it reacts with bromine molecule and first of all…

Q: Draw the major organic product(s) of the following reaction. H20 You do not have to consider…

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Q: Select the INCORRECT statement. Select one: O a. All matter exhibits properties of both particles…

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Q: After 5.0 × 105 years, how much of the sample of Krypton-81 would remain?

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Q: your're in canada on vacation and drive into 30 km/hr speed zone. how fast is the speed limit in…

A: Given that,  Speed = 30 km/hr  We need to express this in m.p.h (miles per hr)

Q: chemical equation of the complex Ni(C4H7N2O2)2. What specie is responsible for the color of its…

A: Here Ni2+ is responsible for the colour of the complex.  Ni2+ is combine with DMG ligand which is…

Q: A certain ionic compound is made entirely of aluminum and oxygen.

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Q: State what would happen when (CH3)3P is added to the Lewis acid-Lewis base adduct (CH3)2O·BH3 in a…

A: Alright. So, if we think normally we might feel that P(CH3)3 should have been the more basic one…

Q: Lower heat capacity: 1025 Steel Nylon 6

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Q: How could spectroscopy be used to support that the below reaction occurred? Choose all that apply.…

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Q: The equilibrium constant of the reaction 2A + 3B - D is 183.2. Calculate the equilibrium constant of…

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Q: The specific heat capacity of liquid mercury is 0.14J/g-k. How many kilojoules of heat are needed to…

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Q: Identify the structure of the important fragments. Show the arrow pushing mechanism to form the…

A: IR spectra deals results from the interaction of infrared radiation with matter by absorption. IR…

Q: Answer the two questions in the space provided. Explain your thinking for both question, on why you…

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Q: 1. A solution of KMNO4 (FW =158.04) was standardized with 0.2320 g K2C204.H20 (FW = 184.24)…

A: Standardization is the process through which exact concentration of a substance is determined.…

Q: What is the ratio of hydrogen atoms (H) to oxygen atoms (O) in 2 L of water? Enter the simplest…

A: Dear student since you have asked multiple questions but according to guidelines we will solve 1st…

Q: Decay of tin-110 by electron capture yields

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Q: If I gave you 9 moles of pennies (6.02 × 1023) but with the condition that you had to spend them at…

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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.