Consider the synthesis of urea: 2 NH₃(l) + CO₂(g) → CO(NH₂)₂(s) + H₂O(l). If 47.7 g of urea is formed from the reaction of 1 mol CO₂ and 3 mol NH₃, what is the % yield of the reaction? (Given: CO(NH₂)₂ = 60.06 g/mol)

Q: Which of the following equations is TRUE about combustion in the context of first law of thermodynam...

A: Combustion in general, a reaction between hydrocarbon and oxygen to produce CO2, H2O and large amoun...

Q: What evidence of a reaction will there be when magnesium sulfate is mixed with barium chloride?

A: To find the evidence of a reaction will there be when magnesium sulfate is mixed with barium chlorid...

Q: What is the internal energy of the system that absorbs 90 J of heat and 15 J work done by the system...

A:

Q: When CO(g) reacts with 02(g) according to the following reaction, 283 kJ of energy are evolved for e...

A: We need to write value of ∆H , for this we need to check sign and total energy. 

Q: What is the rate constant of a first-order reaction if the half-life is 6.62 min

A:

Q: A sample of an unknown gas is found to have a density of 1.97 g/L at a pressure of 0.762 atm and a t...

A:

Q: Covalent bonding occurs between nonmetallic elements. True or false?

A: Covalent bond is formed by sharing of electrons. 

Q: Consider a saturated Mn(OH) 2 solution. Ksp for Mn(OH) 2 =1.97*10^ -13. a) Calculate the molar solub...

A:

Q: You would like to create a reflection grating like the one shown, with an incident angle (0) of 49°....

A: For a grating,the formula is, dsinθ= n× wave length d=1/n =no of lines pee unit length  

Q: student is wondering what happens to the energy of the system during the combustion of hydrogen. How...

A: During a chemical reaction, the bonds between the reactants break and atoms rearrages to form new bo...

Q: CH3 CH3 CHO OSIME;

A:

Q: 2.08g of sodium hypochlorite is dissolved to make 140ml of solution. what is the pH?

A:

Q: Why are carboxylic acids more acidic than alcohols? The increased inductive effect of the alkyl grou...

A: Acidic strength of organic acids can be compared with their pKa value which is determined experiment...

Q: Fill in the missing chemical formulae in the tables below. acid conjugate base base conjugate acid N...

A: According to Bronsted and Lowry concept an acid is a hydrogen containing species ( a molecule, a cat...

Q: The atomic weight of silicon is 28.0855. Round this to 4 significant figures. O a. 28.09 b. 28.1 Oc....

A: Here we have to round the atomic mass of silicon 28.0855 to 4 significant figure.

Q: what are the possible errors that could be encountered during the analysis?

A:

Q: When silver metal, Ag, is exposed to hydrogen sulfide gas, H2S, it tarnishes. Is the reaction of Ag ...

A: Redox reaction is the reaction in which oxidation and reduction occurs in the same reaction.  Oxidis...

Q: Determine the change in entropy (ASsys), for the expansion of 0.600 mole of an ideal gas from 2.00 L...

A: Moles of ideal gas (n) = 0.600 mol Intial volume (V1) = 2.00 L Final volume (V2) = 3.00 L

Q: Q2. Consider CH4 is a planar molecule and prove that it is wrong from the molecular orbital theoI

A: CH4 is planar molecule  this statement is Wrong. CH4 is Tetrahedral molecule.

Q: Draw curved arrows to show the mechanism for the step of the B-ketoacyl-ACP synthase reaction shown ...

A: Here we have to write the curved arrow mechanism for the beta-ketoacyl-ACP synthase reaction given b...

Q: methane burns readily in oxygen in a highly exothermic reaction yet a mixture of methane and oxygen ...

A:

Q: Balance the following redox reactions in basic solution: a. Se + Cr(OH)3 -> Cr + SeO32- b. MnO4- + ...

A: To solve this problem we will have to balanced the given chemical equation .   

Q: The solubility product of solid copper(II) hydroxide is 2.2 x 10−20 g/L in water at 298 K. What is i...

A: Given :- Ksp of Cu(OH)2 =  2.2 x 10−20 g/L  To calculate :- Its solubility (g/L)

Q: The reaction of peroxydisulfate ion (Sz0s-) with iodide ion (I ) is S,0g (aq) + 31 (aq) → 2S0,* (aq)...

A:

Q: It is the study of heat change in chemical reactions *   A. Heat Energy   B. Physics   C. Thermodyna...

A:

Q: Bromine monochloride is synthesized using the reaction Br2(g)+Cl2(g)↽−−⇀2BrCl(g)?p=1.1×10−4 at 150 ...

A:

Q: heat a water jug and a rock of equal mass to 40. °C. If you can only place one item under your blank...

A: Specific heat is defined as the amount of heat required to raise the temperature of one gram of a su...

Q: Consider the mechanism. Step 1: Step 2: 2A B slow B +C D fast Overall: 2 A +C D Determine the rate l...

A:

Q: Question 3: Assume that we are working in body centered cubic structure, draw the planes (100), (010...

A: We have body centered cubic structure.

Q: direction: assign oxidation numbers to each of the atoms in the equation and determine if the reacti...

A: Check the oxidation number for each atom on both side and determine if the given reaction is redox r...

Q: propose three different types of reactions to produce (E)-4,4

A:   Dehydration of alcohol gives alkene  Dehydro halogenation of alkyl halide gives alkene as major p...

Q: Current Attempt in Progress Draw the product that is expected when hexanoyl chloride is treated with...

A: A Gilman reagent is a lithium and copper reagent compound, R₂CuLi, where R is an alkyl or aryl.  Gil...

Q: In the titration of a weak acid HA with 0.100 M NaOH, the stoichiometric point is known to occur at ...

A: pH range for an indicator is around the its pka value.  So we choose an indicator whoose pka value i...

Q: Which is true for the endothermic reaction 2 SO:(g) → 2 SO:(g) + O:(g)? A) Spontaneous at all T B) S...

A: Choose the correct option---

Q: A0.55 M solution of HX, a weak acid, is made. a) Write the reaction of the acid in water and identif...

A: Here the concentration of weak acid HX is 0.55M . Ka= 1.1×10^-2 . We have to determine conjugate bas...

Q: The electron affinity of an element is typically defined as the energy change for the choose your an...

A: Electron affinity- the amount of energy liberated when an electron is added to a neutral atom to for...

Q: Explain why different elements produce different spectral absorption and emission lines.

A: The spectral absorption and emission lines. The absorption spectra is produced when the atom absorbs...

Q: The calcium in a 300.0 ml sample of natural water was determined by precipitating the cation as CaC2...

A: Answer: This question is based on stoichiometric calculation where we have to find out the number of...

Q: Which reagent would be expected to bring about the following conversion? CH CH; O HCI O H2 O Cl2 O H...

A:

Q: 3. Draw the structure of the major product of the following reactions. H-Br H-Br

A: Addition of HBr to double bond occurs via carbocation formation. Carbocation rearrangement also obse...

Q: Br CH;CH,OH

A: CH3CH2OH is neutral base and compound is 3 degree halide compound. So the reaction occurs via E1 eli...

Q: Part 1 regards the images.Part 2: Identify the 4 unique common elementary steps in the above mechani...

A:

Q: • Part A Write equations for the half-reactions that occur at the anode and cathode for the electrol...

A:

Q: Draw a reaction coordinate diagram for the following mechanism. Your diagram should clearly indicate...

A:

Q: What is the major product obtained from the following reactien? Br 1) Mg, ether 2) CO2, ether 3) H30...

A: synthesis of grignard reagent  attack of grignard reagent as nucleophile  hydrolysis leading to the ...

Q: Based on the table you completed above, decide whether the low solubility of KHT at room temperature...

A: KHT (potassium hydrogen tartrate) is a salt of very strong base KOH and weak acid tartaric acid.  

Q: 2. The rubbing alcohol was found to have 60% carbon, 13.4 % hydrogen, and the remaining percent by m...

A:

Q: Balance the following redox reactions in acidic solution: H2S + NO3-  S8 + NO

A: Balance the following redox reactions in acidic solution:

Q: 4) What is the IUPAC name for this compound? CH3

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".