A weather balloon contains 190 L of helium gas at 19.3 °C and 754 mm Hg. What is the volume in liters of the balloon when it rises to an altitude where the pressure is 616 mm Hg and the temperature is -40.0 °C? |

Q: Chemistry Compare the ΔH of vaporization of different liquids (polar and nonpolar, including…

A: The enthalpy of vaporization (∆Hvap) is defined as the amount of heat or energy that must be…

Q: What temperature (in °C) did an ideal gas shift to if it was initially at -16.0 °C at 4.62 atm and…

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Q: Separate the redox reaction into its component half-reactions. 30₂ +4Cr-2Cr₂0₂ Use the symbol e for…

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Q: At 25.0° C, a 10.00 L vessel is filled with 5.25 moles of Gas A and 4.40 moles of Gas B. What is the…

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Q: Which of the following is emitted into the atmosphere when a volcano erupts? Multiple Choice O N₂…

A: Correct answer - HCl

Q: Find the concentrations of all ions in the solution at equilibrium after 0.457 L of 0.483 M aqueous…

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Q: One mole of gas expands isothermically to double its volume. If the gas temperature is 320 K, what…

A: Temperature (T) = 320 K Number of moles = 1mol Volume(V2) = 2 volume (V1)

Q: Nitrogen and hydrogen combine at a high temperature, in the presence of a catalyst, to produce…

A: Balanced chemical equation: N2  +  3H2  ----->  2NH3 From the balanced equation: Number of mol of…

Q: The phase diagram of sulfur is shown below. P (atm) 154°C 1288 atm Rhombic Liquid -A Monoclinic 1.0-…

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Q: Which of the following is correctly named? a) HI(aq)         Periodic acid b) H3PO4…

A: The given species are the inorganic acid and these species give hydrogen ions, hence they are acidic…

Q: For the following equilibrium, if HCl is added, how will the quantities of each component change?…

A: If an acid is introduced  then the  protons will be transferred to the relatively basic phosphate…

Q: 1) A mixture of water and dioxane is typically used for change of dielectric constant which changes…

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Q: A solution contains 1.44×10-2 M barium nitrate and 5.33x10-³ M silver acetate. Solid ammonium…

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Q: Show how you could prepare butane from 2- chlorobutane by two separate routes

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Q: Consider the following table of standard entropy values. S° (J.mol-¹.K-¹) Substance C₂H₂ (g) C₂H4…

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Q: Given the following 2 BrCl (g) Cl₂(g) + Br₂(g) 2 1Br (g) 1₂(g) + Br₂(g) Determine the value of Kp…

A: When two reactions are added then the Kp values are multiplied.When a reaction is reversed then we…

Q: 2,3- Question) Draw the following by Chemdraw and write the Molar Mass? 4-Chlorobenzaldehyde…

A: We have to draw the structure of the griven compounds and also have to give their molar mass.

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Q: Derive the thermodynamic equation of state (SP)₁ = V (BP - aT)

A: Here we are required to find the thermodynamics equation of state.

Q: . Calculate the pH of a 0.150 M solution of carbonic acid (H₂CO3)? Kal = 4.5 x 10 7 Ka2 = 4.7 x 10…

A: pH is equal to negative logarithmic of hydrogen ion concentration

Q: For the combustion reaction of ethylene (C₂H4) C2H4 + 3O2 → 2 CO2 + 2 H₂O assume all reactants and…

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Q: Constant-boiling HCI can be used as a primary standard for acid-base titrations. A 50.00 mL sample…

A: Given , Volume of HCI = 50.00 mL Concentration of HCI = 0.1020 M Volume of Ba(OH)2 = 40.29 mL

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Q: What mass of potassium chlorate is needed to generate 167.0 L of gas, composed of 99.00 L of N2 and…

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Q: A sealed sample of fluorine gas has a pressure of 6.80 atm at a temperature of 9.0°C. If the volume…

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Q: In NiCd cells, is it true that discharging produces Nickel hydroxide and Cadmium hydroxide?

A: We need to find in NiCd cells, is it true that discharging produces Nickel hydroxide and Cadmium…

Q: What is the electron configuration of a ground-state Fe2+ ion?

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Q: What if I did the following steps for a mechanism:  1) nitration of benzene  2) clemmenson…

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Q: Predicting the relative length and energy of Which of the highlighted chemical bonds in the…

A: Here, we need to arrange the given compounds based on bond energy and bond length of the highlighted…

Q: The pressure of a gas sample at 44.0 °C is increased from 1.10 atm to 2.30 atm by heating at a…

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Q: (b) 18.4 % C, 21.5 % N. and the rest Kans: KCN (c) 52.9 % Al, and the rest 0:0

A: Please go through my hand written notes for the solutions.

Q: Chemists can produce silver metal by reacting copper metal with a solution of silver nitrate: Cu(s)…

A: Given -> Cu(s) + 2AgNO3(aq) -----> 2Ag(s) + Cu(NO3)2(aq) Mole of Copper= 0.24 mole  Mole of…

Q: Br

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Q: A sample of dinitrogen trioxide contains 4.53 x 1022 molecules.  What is its mass? Provide answer in…

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Q: me structure of an amino acid is shown. Identify the amino acid. O proline histidine lysine O…

A: Here we are required to identify the one of twenty naturally occurring amino acid.

Q: Elements in the same row of the periodic table exhibit similar chemical properties. True False

A: In the periodic table, the elements are arranged according to their atomic number (electronic…

Q: For each of the following questions, please provide a route that could reasonably be expected to…

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Q: The following initial rate data are for the reaction of UO₂+ with hydrogen ion in aqueous solution:…

A: Given Reaction2 UO2+   +   4 H+    →    U4+   +  UO22+    +   2 H2O

Q: Concentration: 15.8mg/L Final volume: 100.0mL What is the concentration of the phosphate in the…

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Q: vels of radioactive radon-222 (222Rn) have been found in many homes radium-containing rock, leading…

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Q: Derive the thermodynamic equation of state au V (BP - aT) ӘР

A: We have to derive the thermodynamic equation of the state  ∂U∂PT = VβP - αT. Introduction: We know…

Q: The rate law predicted by the following two-step mechanism is Rate = K[A][B]. A C+B (slow) A+B → C+E…

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Q: Determine [H3O+] in a solution where [OH-] = 7.92 × 10-9 M.  Identify the solution as acidic, basic,…

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Q: Applying heat can help drive forward a reaction with unfavourable entropy. True or false?

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Q: 1. A mixture of the 8-hydroxyquinoline complexes of Al and Mg weighed 1.084 3 g. When ignited in a…

A: Given data: The mass AlQ3 + mass of MgQ2= 1.0843 g The Mass of Al2O3+ mass of MgO = 0.1344 g

Q: What is the best way to turn benzene into the following product? Would friedel-crafts alkylation…

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Q: с Br Н HO ( НО.

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Q: What is 4,260 µg/mL in units of mg/mL? Give your answer with three digits after the decimal.

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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.