2H2O(l)→2H2(g)+O2(g) What mass of H2O is required to form 1.2 L of O2 at a temperature of 335 K and a pressure of 0.917 atm ? Express your answer using two significant figures.

Q: se Table 8.4 to estimate the enthalpy change for each of the llowing reactions: 1) H₂C=O(g) + HCl(g)…

A: This question belongs to Thermochemistry. We can calculate the change in enthalpy by using the…

Q: Write the reaction mechanism between acetone and KBr/Br2.

A:

Q: What mass of LiOH would need to be dissolved in water to make 300.0 mL of a solution with a pH of…

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Q: The line drawings for the cis-trans isomers of a compound are given below. Omitting the cis-trans…

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Q: When hydrochloric acid is used to hydrolyze starch in your “P/H+” test tube, which molecule do you…

A: This question belongs to general chemistry.

Q: What is meant by highly concentrated solution?

A: The meaning of highly concentrated solution is given below.

Q: Give the structure that corresponds to the following molecular formula and ¹ H NMR spectrum: C-H₁0:8…

A: Given molecular formula of the compound is C5H10  1H NMR spectrum gives a peak at δ = 1.5  singlet

Q: Which of the following is not a carbohydate? C6(H2O)6 C5H1005 C7H1407 C5(HO)5 Functional…

A: Carbohydrate is a biomolecule consisting of carbon, hydrogen and oxygen atoms. In the given question…

Q: 6. Balance the following chemical equations and determine the type of reaction: Na (s) + NaOH (aq) +…

A: Different type of chemical reaction: a) Precipitation reaction: In precipitation reaction an…

Q: A chemical engineer is studying the following reaction: N₂(g) + 3H₂(g) → 2 NH3(g) At the temperature…

A: The direction in which the reaction proceeds to reach equilibrium can be predicted by determining…

Q: Estimate the crystal field stabilization energy for the octahedral ion…

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Q: how does the ring open? can you add more steps?

A: It is a follow up question.

Q: .8 4. O 1. LAH, Et20 2. NH4CI

A: LiAlH4 (LAH) is a strong reducing agent. It reduces lactone to diol.

Q: Calculate the pH of a solution containing 0.010 M HCOOH (Ka = 1.90 × 10-4) and 0.061 M HCI. A. 0.39…

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Q: How many amps are required to produce 76.4 g of lead metal from a solution of aqueous…

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Q: Indicate which choice is the best explanation for the following factual statement: the IE1 of…

A: This question belongs to periodic properties.

Q: What are the differences between a simple distillation and steam distillation?

A: Answer: Distillation is a separation technique in which one of the components of mixture is being…

Q: The following initial rate data are for the oxidation of nitrogen monoxide by oxygen at 25 °C:…

A:

Q: Which lettered part of the structure in figure 13 can have cis-trans isomers? A. letter A B. Letter…

A: Cis⎯trans isomers are geometrical isomer. It is applicable when an alkene has two different…

Q: Search Hydrazine is an inorganic compound with the chemical formula N₂H4. The reaction of hydrazine…

A:

Q: Consider the equilibrium A+ B-C. What is significant about the equilibrium state in which [B]-[C]?…

A: Given data :  A + B ==> C  [B] = [C]  Equillibrium constant , K is defined the ratio of…

Q: Consider the reaction: A → B. Use the below data to determine the first half-life for experiment 1.…

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Q: A buffer solution contains 0.301 M hydrofluoric acid and 0.210 M sodium fluoride. If 0.0302 moles of…

A: When a weak acid and its salt are present in a solution,they form a buffer solution.The pH of…

Q: predict product and show mechanism for the following mechanisms

A: Concept introduction: Addition of br2 molecule in Elkin is proceed to bromonium ion intermediate and…

Q: ive detailed Solution with explanation needed..please explain

A: Ether are formed by acid catalyzed coupling of two alcohols.

Q: don't understand where the H goes for the first product. I'm not sure exactly what the question is…

A: Pyrrole is 5 membered heterocyclic compound. It is aromatic because it has 6 pi electrons.

Q: The mechanism proposed for the oxidation of iodide ion, I, by the hypochlorite ion, CIO, in aqueous…

A: The rate of reaction refers to the speed at which a chemical reaction occurs. It can be defined as…

Q: A 2.310 mol quantity of NOCl was initially placed in a 1.850 L reaction chamber at 400°C. After…

A: Given that, Number of moles of NOCl = 2.310 mol  Volume of reaction chamber = 1.850 L  After…

Q: 12. How many products are obtained from reaction of the alkene pictured below in H30¹? A) 1 B) 2. C)…

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Q: X app.101edu.co Aktiv Chemistry X + Que What mass of precipitate (in g) is formed when 45.5

A: When stoichiometric coefficient results in the equal number of atoms of each element on both the…

Q: sketch a PE diagram for the following reactions: 3CO2(g) + 4H2O(l) = C3H8(g) - 5O2(g).

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Q: 2 Na(s) + Cl₂(g) Ang = gas 2 NaCl(s) mol

A: We have to calculate ∆ngas

Q: Reaction Mechanism Problems with Carbonyl Functionalities Me NaOH H₂O HO Me + CO₂

A: OH- act as nucleophile which attack on C=O carbon followed by breaking of C-N bond that leads ring…

Q: The mass balance equation for a chemical in a lake can be written as: dC = L-XC dt If L = 1000…

A: Answer: Steady state chemical concentration means rate of change in concentration has become equal…

Q: What are the equilibrium concentrations of 250mg of acetic acid, HC₂H3O₂ in 150ml solution? (acid is…

A: Question Based on the concept of chemical equilibrium . we need to calculate equilibrium…

Q: Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product…

A: We have been given reactants and products.We have been asked to draw curved electron pushing arrows…

Q: 1. What is the balanced form of the following equation? Br2 + S2O3²- + H2O → Br¹- + SO4²- + H+

A: Since, In redox reaction, Oxidation and reduction reaction both takes place simultaneously.

Q: A chemist fills a reaction vessel with 0.969 g silver chromate (Ag₂ CrO4) solid, 0.534 M silver…

A: The question is based on the concept of solubility product principle.    It that states that when a…

Q: Calculate how many kilograms of SiO2 are required to produce 3.67 kg of SIC?

A: The given information is as follows:      The mass of SiO2 required = ?       The mass of SiC…

Q: 6:15 1 An unknown weak acid with a concentration of 0.074 M has a pH of 1.80. What is the Ka of the…

A: Given pH = 1.80 Concentration = 0.074 M

Q: 1. The chemical formula for the active ingredient in the anticoagulant Heparin is C12H19NO2053. a.…

A: This question belongs to mole concept. As per guidelines I can answer first question only.

Q: ow many grams of Mg(OH)2 is necessary to prepare 500mL of 0.5M Mg (OH)2 solution? FW of Mg(OH)2 =58…

A: Given,  Volume of solution = 500 mL = 500 mL × ( 1 L ÷ 1000 mL ) = 0.500 L  molarity of Mg(OH)2 =…

Q: A standard hydrogen electrode has a half-cell reduction potential of zero at 25 C. Calculate the…

A: We  have to calculate the potential of the given half cell

Q: 8.16) What is the base form of H₂S? HS-

A: Acid : An acid is a chemical species that can donate a proton H+ in aqueous solution.Base : A base…

Q: Did you report your data to the correct number of significant figures? Solution 1 Solution 2 NaCl…

A: Given , Sodium Chloride solution .

Q: State the number of electrons that can have the quantum numbers / = 3, mƑ-2 and m= + +21/1/2

A: We have to found the number of electrons that can have the quantum number l=3, ml=-2, and ms =+1/2.

Q: What volume (in mL) of 9.2 M HCIO4 would be required to make 500.0 mL of a solution with a pH of…

A: To solve this problem, we first need to use the pH to calculate the concentration of H+ ions in the…

Q: 2CO(g) + O₂(g) → 2CO₂(g) 9.0 L of O2 react with excess CO at STP. How many moles of CO2 form during…

A: To solve this problem we have to calculate the mole of CO2 produced .

Q: 200 mL of 2% acetic acid is needed. How many mL of 5% acetic acid is required to make the 2%…

A: Well, we can easily find the 5% acetic acid required to make 2% acetic acid solution of volume…

Q: Hydrochloric acid (HCl) reacts with sodium carbonate (Na2CO3), forming sodium chloride (NaCl), water…

A:

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.