How

Q: Chem Help

A: Covalent Bond formed by sharing of Electrons. In formation of covalent Bond the difference in electr...

Q: Nitrogen forms several gaseous oxides. One of them has a density of 1.25 g/L at 720 mm Hg and 152 de...

A: The above questions can be solved by the relation of density and ideal gas equation. Ideal gas is a ...

Q: Who is credited with arranging the periodic table? How areelements arranged in this table?

A: The table which contains various elements arranged in a definite pattern is called a periodic table....

Q: gnment/takeCovalentActivity.do?locator=assignment-take MyLabsPlus | Pear... Chem 2 Login P Course Ho...

A: Barium sulfite is BaSO3 (ions included are Ba2+ and SO32-). The standard Ksp for BaSO3 is 5.0×10-10 ...

Q: The following reactions all have K<1. 1) HCOO (aq) + HCN (aq) HCOOH (aq) + CN" (aq) 2) CN (aq) + CH;...

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Q: For the reaction:CH4(g) + H2O(g)3H2(g) + CO(g)H° = 206 kJ and S° = 215 J/KThe equilibrium constant, ...

A: Given: The value of enthalpy change and the entropy change is 206 kJ and 215 J/K, respectively.

Q: Do you think it is possible that an increase in temperature could cause a decrease in solubility? Ex...

A: Solubility is defined as the amount of solute that can be dissolved in the given solvent.

Q: Addition and subtraction of measurements Decide whether each proposed addition or subtraction of mea...

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Q: Consider the following statements as they apply to infrared spectroscopy. Decide if each is true or ...

A: IR spectroscopy is studied when molecules absorb IR radiations. For molecules to absorb IR radiation...

Q: The amount of heat absorbed by the solution can be found using the equation q = m x SH x AT. It can ...

A: A multiple choice question based on heat absorbed, which is to be accomplished.

Q: Balance the following reaction. Calculate the cell potential and the Gibbs free energy of the reacti...

A: The questions are based on the concept of redox reactions.   Redox Reaction  are those reactions in ...

Q: A particular reaction has a ΔHo value of -150 kJ and ΔSo of -393 J/mol K at 298 K. Assuming that ΔHo...

A: Enthalpy change of a reaction, ∆H° is the energy difference between energy of products and reactants...

Q: Number of valence electrons CCI4

A: In an atom, the last shell is known as valence shell and the electrons present in that shell is know...

Q: Consider a hydrogen atom in the ground state. What is the energy of its electron? E = 1.6 x10-19 Inc...

A: Ground state of an atom is considered as the most stable state. The energy of this state is minimum ...

Q: In the bohr model of the hydrogen atom, which transition would occur at the shortest wavelength? A....

A: The wavelength of transition occuring in hydrogen atom is given by Rydberg's equation  1λ = RH1n12 -...

Q: A solution of 0.870 g of an organic compound in 100.0 g of benzene has a freezing point of 5.227°C. ...

A: From given data Kf = 5.12°C/m Freezing point of solution T1  = 5.227 °C Freezing point of pure solve...

Q: What is meant by the term coordination number in the structure of a solid? How does the coordination...

A: Interpretation -  What is meant by the term coordination number in the structure of a solid- How do...

Q: Aluminum is reacted with oxygen to produce aluminum oxide.  There was enough aluminum and oxygen to ...

A: The balanced Chemical equation for production of aluminum oxide - 4Al + 3O2 -----&gt; 2Al2O3   Follo...

Q: Aspirin can be made in the laboratory by reacting acetic anhydride (CHO) with salicylic acid (C,H,O)...

A:  Balanced equation :   C4H6O3 + C7H6O3 → C9H8O4 + C2H4O2   Mass of acetic anhydride  can be determin...

Q: Draw ONLY curved arrows for each step of the following mechanism: HỘ:

A: Ethylene glycol is 1,2-ethanediol which is a sweet-tasting viscous liquid. It is used as a protectin...

Q: Some students burned magnesium in excess oxygen, as described by the equation 2 Mg(s) + O2(g) --&gt;...

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Q: A.- How many moles of KHP are contained in a sample of 4.656 g KHP (Molar Mass = 204.22 g/mol)? B. -...

A: Moles of KHP and Moles of NaOH are calculated individually in a and b from given

Q: 1) How could you make 1-propanaldehyde starting from ethyne (acetylene) 2) how could you make explic...

A: Ethyne H's are acidic in nature , in presence of strong base like NaNH2 (sodamide) it gives anion , ...

Q: The vapor pressure of ethanol is 100 mmHg at 34.9°C. What is its vapor pressure at 58.5°C? (AHvap et...

A: The pressure exerted by the vapor onto the liquid state at equilibrium is called as vapor pressure. ...

Q: Which of the following will affect the amount of energy it takes to change the temperature of a soli...

A: Whenever a substance is heated its temperature is increased. The process of heating requires heat.  

Q: A + 2 B ⇌ AB2 The following diagram shows the change in concentration of the reactant A and product ...

A: At time t both curve intersect each other shown in graph .

Q: Calculate the (Ex/GS) atomic ratio for 3s---3p (oppose) in Mg* at 3000k?

A: Given that   For Mg+  Temperature = 3000K  Orbital --- 3s - 3p

Q: A student dilutes a strong acid by adding 100 mL of water to 100 mL of the solution. Which of the fo...

A: pH is a scale to measure the concentration of hydrogen ions. The negative logarithm of hydrogen ion ...

Q: Identify each of the following as a strong electrolyte, a weak electrolyte or a nonelectrolyte, base...

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Q: A 35-L block of ice (density at 0.9167 g/cm3) sits on a surface that is 25 inches wide and 16 inches...

A: Determination of mass of the ice from its density: d=mV0.9167 g cm-3=m35 L×1 L103 mL×1 mL1 cm3m=32.0...

Q: expanded structural formula of methane

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Q: Chemistry Question

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Q: Propane (C3H8) is a minor component of natural gas and is used in domestic cooking and heating. How ...

A: number of moles = mass/molar mass  Mass = moles × molar mass  Molar mass of CO2 = 44.01 g/mol  Molar...

Q: Can you help me with this?

A: The reaction system 2 have reached equilibrium.

Q: An aqueous potassium iodate stock solution is made by dissolving 5.49 mol KIO, in sufficient water f...

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Q: For a C3y molecule, the reducible representation is 5E + -1(2C3) + -1(ov). Determine the irreducible...

A: Reducible representations are those which can be break down/reduced into simpler form and are also c...

Q: Combustion of hydrocarbons such as butane (C H10) produces carbon dioxide, a "greenhouse gas." Green...

A: Since the hydrocarbons are mainly composed of C and H-atoms, therefore, their complete combustion in...

Q: What volume (in mL) of 0.250 M nitric acid (HNO3) is needed to react with 44.8 mL of 0.150 M Na2CO3 ...

A: In this question, we want to determine the volume of HNO3 in mL. You can see steps how to calculate ...

Q: Determine the number of grams of C4H10 that are required to completely react to produce 8.70 mol of ...

A: This is an example of combustion reaction.

Q: Calculate the time, in minutes, that it takes to plate 16.915 g of Al using a current of 10.000 A. R...

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Q: If you had a saturated solution of KCI at 60 °C, how many grams of solute would there be per 100 gra...

A: Saturated solution: It is defined as the solution in which no more solute can be dissolved, basicall...

Q: ANORGANIC COMPOUNDS CONTAINING POLYATOMIC IONS A polyatomic ion is an ion consisting of 2 or more di...

A: The rules for naming the polyatomic compounds are The cation is written first in the name; the anion...

Q: Hello, can you help me with the attached question?

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Q: A 12.73 g sample of an unknown hydrocarbon undergoes combustion in a bomb calorimeter with a calorim...

A: The amount of the sample is = 12.73 g The calorimeter constant is = 18.5 kJ/°C The increase in tempe...

Q: Write the empirical formula for at least four ionic compounds that could be formed from the followin...

A: In this question, the empirical formula for at least four ionic compound from the given below ions h...

Q: Rank the following compounds

A: Stability of carbocation: As we know that there are three alkyl groups present in the tertiary carbo...

Q: Considering the following UNbalanced reaction (will need to be balanced before you can do anything w...

A: Butane reacts with oxygen to forms carbon dioxide and water. The equation for the balanced combustio...

Q: 23.1(b,d and e)

A: Given a question of molecules formula is draw a structure of compound.   

Q: ar nd

A: Dear student I have given answer to your question in the image format.

Q: Container A holds 772 mL of an ideal gas at 2.80 atm.Container B holds 139 mL of a different ideal g...

A: Given, ideal gases as follows,volume of gas in container A =772 mL =0.772 Lat pressure =2.80 atmvolu...