Chemistry Question

Q: Starting with 1.5052g of BaCl2 2H2O and excess H2SO how many grams of BaSO4 can be formed? If a stud...

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate valu...

Q: What are the table values for this molecule if given 12mL?

A: Given information,

Q: using the standard enthalpies of formation, what is the standard enthrall of reaction? CO(g)+H2O(g)-...

A: Standard enthalpy of formation of CO2 = -393.5 kJ/molStandard enthalpy of formation of H2 = 0 kJStan...

Q: What is the volume, in L, of 0.692 moles of O_22​ gas having a temperature of 65.7 ºC and pressure o...

A: Convert unit of temperature from degree Celsius to Kelvin:

Q: At a given temperature and pressure, Helium takes 4.98 minutes for a 1.5 L sample to effuse through ...

A: Graham`s law of diffusion: the rate of effusion of a gas is inversely proportional to the square roo...

Q: If titrating 25.00 mL of 0.115 M HCl with 0.0955 M NaOH, what is the pH of the solution after 10.48 ...

A: Given:Volume of HCl = 25.00 mLMolarity of HCl = 0.115 MMolarity of NaOH = 0.0955 MVolume of NaOH add...

Q: The specific heat of a certain type of metal is 0.128 J/(g⋅∘C). What is the final temperature if 305...

A: The amount of heat gained or lost by a metal in a chemical process is related to its specific heat i...

Q: A light photon with a frequency of at least 0.234 × 1016 Hz is required to split apart dinitrogen ac...

A: Electromagnetic spectrum involves different radiations from the lowest to the highest frequency valu...

Q: Question 6 B

A: Please check that the balanced reaction mentioned in 6 (B) is incorrect.In question 5, the correct b...

Q: #3 & 4

A: Hey, since there are multiple questions posted, we will answer first question. If you want any speci...

Q: When a 4.00 g sample of KCl is dissolved in water in a calorimeter that has a total heat capacity of...

A: Heat of solution is the heat absorbed or given out when the salt is dissolved.

Q: e teaching and X com/ilrn/takeAssignment/takeCovalentActivity.do?locator=assignment-take&takeAssignm...

A: Bronsted-Lowry acid: Acid that donates proton and Base that accepts proton.

Q: Lead ions can be removed from solution by precipitation with sulfate ions. Suppose that a solution c...

A: Ionic equation : (electrolytes in aqueous solution are written as dissociated ions.)Reactants : lead...

Q: Not sure if I finished and balanced this equation correctly on my homework : (Nh4)2S + Br2 = Nh4Br +...

A: In a balanced chemical equation the total number of atoms on either side of the reaction arrow must ...

Q: How do you write these equations and what are there coefficients(states of matter)?

A:  In a chemical reaction; the substance which involves in conversion is said to be reactant whereas t...

Q: Consider the combustion of methane.   CH4(g)+2O2(g)→CO2(g)+2H2O(g)  Suppose 2.5 mol  of methane are ...

A: Given:Moles of CH4 = 2.5 mol.Moles of O2 = 3.5 mol.

Q: Determine the pH in a 0.235 M NaOH solution.

A: pH can be calculated using pOH.

Q: Explain why the PbCl2 dissolved when water was added. (What was the effect of added water on [Pb2+] ...

A: PCl5 dissolved in water because, the concentration of Pb+2 and Cl- ions decreased. This leads to dec...

Q: With some manipulation, the Rydberg equation can be rewritten in the form E=constant×(1/nf2 - 1/ni2)...

A: The expression for energy can be written in terms of Planck’s constant (h) and wavelength (λ) as fol...

Q: Vinegar is a solution of acetic acid, HC2H3O2, dissolved in water. A 5.54-g sample of vinegar was ne...

A: The molarity of a solution is defined as the number of moles of solute present in one-liter solution...

Q: Part A Write balanced complete ionic equation for HCl(aq)+KOH(aq)→H2O(l)+KCl(aq). Part B balance...

A: Balancing reaction:Balanced reaction is a chemical reaction in which number of atoms for each elemen...

Q: A chemist must prepare 500.0mL of hydrochloric acid solution with a pH of 0.90 at 25°C. He will do t...

A: A chemist must prepare 500.0mL of hydrochloric acid solution with a pH of 0.90 at 25°C.He will do th...

Q: Rank these ions according to ionic radius.   Rb+, As3-, Se2-, Br-, Sr2+   From largest radius to sma...

A: Atomic radius is the distance between the atomic nucleus and outermost electron of an atom.  From th...

Q: Question 5

A: Given,1.547 g of copper (II) sulfate hydrate0.989 g of copper (II) sulfate

Q: 2- Determine the molarity of a solution formed by dissolving 468 mg of Mg12 in enough wwww water to ...

A: The molarity of a solution is the ratio of number of moles of a substance to the volume of solution ...

Q: Chemistry Question

A: The chemical bonding present in covalently bonded molecules and in coordination compounds are repres...

Q: How do I solve this question?

A: Hydrogen bonding is a type of dipole-dipole interaction of molecules when the hydrogen is bonded to ...

Q: Part A Na +I2 Express your answer as a balanced chemical equation. ? ΑΣφ Request Answer Previous Ans...

A: Sodium on reaction with iodine forms sodium iodide.Balanced chemical reaction is given by:

Q: 0.244 L of 0.200 M HCl(aq) is combined with 0.0600 L of 0.400 M CH3NH2(aq).  What is the pH of the r...

A: Given Volume of .200M HCl= 0.244LVolume of 0.400M CH3NH2 = 0.600LKb = 4.4x10-4

Q: Rotate 180 degrees around the C3-C4 bond. Redraw the molecule with the left side of the molecule (co...

A: Given,

Q: I need help on part B. Another person answered that it was .480, but it says it’s incorrect.

A: Given information:Heat absorbed by the gas = 0.480 kJWork done by the system = 270 J

Q: Calculate the energy of a photon of electromagnetic radiation whose frequency is 2.90×1014 s−1   ...

A: Given:Frequency = 2.90×1014 s−1Calculation for energy:

Q: Please answer the question

A: Given information:Volume of NaOH (V1)= 25.0 mLVolume of HCl (V2)= 15.5 mLMolarity of HCl (M2)= 0.449...

Q: Draw the molecular orbital (MO) electron diagram for the He2- molecular ion. Be sure your diagram co...

A: There are 6 electrons in given He22-. According to the MO theory its electron configuration can be w...

Q: An automobile tire has a recommended "cold" (around 25 °C) inflation pressure of 32 psi. During a lo...

A: Given information:Initial temperature (T1) = 25 ◦CFinal temperature (T2) = 50 ◦CInitial pressure (P1...

Q: Is benzoic acid oxidized or reduced in the above reaction? Explain.

A: Oxidation is defined a process involving the loss of electrons from a species during a chemical reac...

Q: From the ground-state electron configurations of Li2 and Be2, predict which molecule should have the...

A: Write the electronic configuration of the given molecules as per molecular orbital theory.

Q: Describe any one of the gas laws that led to the Ideal Gas Law.

A: Any gas is described by using four terms namely pressure, volume, temperature and the amount of gas....

Q: Question 11

A: Total number of shared electrons in acetic acid has to be calculated.

Q: IS THERE A PATTERN TO THE LOCATION OF THE GASEOUS ELEMENTS ON THE PERIODIC TABLE?

A:

Q: Fill in the nuclide symbol for the missing particle in the following nuclear equation АНе + 230 тh 9...

A: Alpha-emission refers to a kind of radioactive decay in which the emission of alpha particles from t...

Q: In a mixture of two gases, the partial pressure of methane is 0.175atm and the partial pressure of o...

A: Given, Partial pressure of methane = 0.175 atmPartial pressure of oxygen = 0.250 atmVolume, V = 10.5...

Q: The value of ΔHorxn for the following reaction is -289.0 kJ/mol. 2 ZnS(s)  +  O2(g)  →  2 ZnO(s)  + ...

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and...

Q: Chemistry Question

A: The structure selected does not fulfil octet number electrons around boron atom.  However, the struc...

Q: Need help on part A and B

A: GivenA gas is confined to a cylinder at atmospheric pressure i.e. the pressure is constant.Head adde...

Q: Combining 0.290 mol Fe2O3 with excess carbon produced 13.1 g Fe.   Fe2O3+3C⟶2Fe+3CO   What is the ac...

A: Given,The molar mass of Fe is 55.85g/molThe actual yield of Fe in moles can be calculated as

Q: Comment on the “ideality” (Newtonian or non-Newtonian characteristic) of 100ml solutions of methanol...

A: Given information:Volume of solution = 100 mL

Q: 3. Carbon tetrachloride (CCl4 can be produced using the following reaction. If 34.535 grams of chlor...

A: Given,Mass of chlorine = 34.535gMass of carbon tetrachloride = 28.550g

Q: Determine the Ka for CH3NH3⁺ at 25°C. The Kb for CH3NH2 is 4.4 × 10-4.

A: The symbol Ka in chemistry denotes the acid dissociation constant for a given acid which is used to ...

Q: Question 1

A: The redox reaction is given by as follows: