Hydrogen gas is produced by the reaction of hydrochloric acid, HCl, on zinc metal. 2HCl(aq) + Zn(s) → ZnCl₂(aq) + H₂(g) The gas is collected over water. If 152 mL of gas is collected at 19°C and 768 torr total pressure, what is the mass of hydrogen collected? The vapor pressure of water at 19°C is 16.5 torr. HOW DO WE GET THERE? What is the pressure of the hydrogen gas in atmospheres, the volume of the gas in liters, and the temperature of the gas in kelvin? P= V= T= atm K

Q: Classify each chemical compound: compound FeBr₂ H₂SO3 Cr₂(CO3)3 type of compound ionic ionic ionic…

A:

Q: A sample of methane gas at a pressure of 972 mmHg and a temperature of 85° C, occupies a volume of…

A:

Q: Dehydration of Alcohols Image: (insert your drawing of the reactants, products, and catalyst on the…

A: Here we have to  draw the reactants, products, and catalyst for given reaction-

Q: Select the rate law that corresponds to the data shown for the following reaction…

A:

Q: The equilibrium constant for the following reaction is 6.50-10 at 298 2NOBrig)2NO(g) + Br₂(g) If an…

A:

Q: 5. Provide the reagents necessary to carry out the following conversion. O || COH CI

A: The desired compound can be synthesized by following three steps 1. Fridlecraft alkylation reaction…

Q: Draw the major organic product from the reaction sequence. 1. Excess CH3MgBr 2. H3O+ 3. NaH, THF 4.…

A: Excess of Grignard reagent after reaction with ester gives tertiary alcohol

Q: CaCO3(s) ⇌Ca2+ (aq) + CO32- (aq) Write the equilibrium equation for the acid or base that exists…

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

Q: A 15.00 g sample of an oxide of nitrogen is heated and decomposes to nitrogen and oxygen. All the…

A: Answer:- This question is answered by using the simple concept of determination of empirical formula…

Q: Given the following chart, identify the equilibrium disturbance that occurs at A, (B is for the…

A: Answer: Le-chatalier's principle states that on changing any parameter of the system that is at…

Q: 3. Provide the missing product in the following reactions and show the complete mechanism. شر CH₂N₂…

A: Diazmethane in the presence of acid gets protonated to produce methanediazonium which alkylates…

Q: 5th bullet point. We dissolved a solid in a liquid so I would think the Delta S would be positive…

A: Entropy is defined as degree of randomness or disorderliness present in a molecule.  If a molecule…

Q: Question 6 of 16 For the reaction: Mg(OH)2 (s) Mg2+ (aq) + 2 OH- (aq) Adding Mg(OH)₂ will A) have no…

A: According to Le Chatelier principle,  If a system is in equilibrium and is subjected to a change of…

Q: A 1.00 liter solution contains 0.31 M hydrofluoric acid and 0.23 M potassium fluoride. If 25 mL of…

A: According to the question, a 1.00 liter solution contains 0.31 M hydrofluoric acid and 0.23 M…

Q: What is the concentration (in M) of a solution that was prepared by dissolving 36.785 g of NaOH in a…

A: Mass of solute (NaOH) = 36.785 g Volume of solution = 300.0 mL   =( 300.0/1000) = 0.300 L Volume of…

Q: The fictitious salt MX has a solubility of 29.76 g/100 mL and a molar mass of 153.14 g/mole. What…

A:

Q: H3C The following road map explores the reactivity of alkynes. Supply the missing reagents over the…

A: In the given starting organic compound , the  hydrogen containing terminal alkynes are having highly…

Q: ZHN (ə )

A: The question is based on the concept of organic synthesis.  we need to synthesize the product using…

Q: Salicylic acid (H2C8H4O2) is a diprotic acid (Ka1 = 1.12 x 10-3 ; Ka2 = 3.91 x 10-6). Provide the…

A: A diprotic acid

Q: How much heat was absorbed (in J) if a 34.8 g sample of an alloy with a specific heat of 0.868 J/g…

A: Heat absorbed by the alloy is given by: q = m C ∆T Where, q = heat absorbed m = mass of the alloy Cv…

Q: 1 attempts left Be sure to answer all parts. Name the unidentified species and write the…

A: Transmutation is a process in which the nucleus changes the number of protons to produce an atom…

Q: la 2-Fe/HCI 1- 2- / AICI3 Br Br COOH

A: In three of the reactions starting compound is benzene. In first reaction,  two times bromination…

Q: Complete the table below by deciding whether a precipitate forms when acteous solutions A and B are…

A: Answer: When solutions of 2 different compounds are mixed and precipitate formation takes place then…

Q: In the molecule below, the molecular geometry (shape) around the carbon atom is tetrahedral and the…

A: VSEPR (Valence Shell Electron Pair Repulsion) theory is used to determine the shape of the…

Q: Calculate the volume in liters of a 1.18 × 10¯5 mol/L zinc oxalate solution that contains 50.0 g of…

A: Molar mass of zinc oxalate (ZnC2O4) = 153.4 gm We have, 50.0 gm of zinc oxalate.  So, Number of…

Q: 1. Calculate the concentration of sodium benzoate (NaC,H,O) that must be present in a 0.20M solution…

A:

Q: At room temperature 1.000 mL of water weighs 1.000 grams. Therefor how many grams of water in 2.570…

A: Given that At room temperature 1.000 mL of water weighs 1.000 grams. We have to calculate mass of…

Q: Calcium fluoride, CaF2, is a compound added to toothpaste to help prevent cavities. Calculate the pH…

A:

Q: Purpose the synthesis for the following transformation. (d) NH₂ X

A: In the first step of the reaction, the amide is converted into acid chloride by reacting the amide…

Q: The vapor pressure of pure water at 25oC is 23.8 mmHg. What is the vapor pressure of water above a…

A:

Q: Select the reagent for the following reaction. benzoic anhydride Acid halide Anhydride Ester Amide…

A: In the given reaction acid anhydride is converted into an ester. Anhydride is a more reactive acyl…

Q: 7. Find the product(s) of the following reactions: 1. Br₂, CCl4 2. 3NaNH₂, H 8. Find the product(s)…

A: The question is based on organic reactions.     we need to identify the product formed and explain…

Q: A buffer solution is made that is 0.446 M in CH3COOH and 0.446 M in CH³COONa . (1) If K₂ for CH3COOH…

A: we have to calculate the pH of solution and net ionic equation when NaOH is added

Q: Argon at a pressure of 1 atm condenses to a liquid at 87.4 K and solidifies at 83.9 K. The vapor…

A: Ideal gas Law can be used to determine the volume of N2 vapors at different temperature and pressure…

Q: The compound you are working with is HBr. This compound is dissolved in water. Your lab partner…

A: Acidity is defined as the ability of a molecule to release protons.  if a compound  easily donate…

Q: What is the wavelength of light (in nm), that has a frequency of 2.53 x 1015 Hz?             (Hint:…

A:

Q: The value of Kc for the following reaction is .070. What is the equilibrium concentration of C4H10…

A:

Q: Calculate the pH of a solution containing 14.68 g of mandelic acid (152 g/mol) and 20.59 g of sodium…

A: First calculate the molarity for mandelic acid and sodium mandelate. Use the formula to calculate pH…

Q: Given that the reaction 2 H2(g) + O2(g)->2 H₂O(g) is exothermic, which of the following is true of…

A: The progress of a reaction can be represented by the reaction coordinate diagram. In a reaction…

Q: Draw the major organic product(s) of the following reaction. Br NaSCH 3 acetonitrile

A: Here we have to write the major product of given reaction-

Q: Consider the reaction: 2H₂(g) + O2(g) → 2H₂O(g) Using standard thermodynamic data at 298 K,…

A:

Q: 1.30 mol sample of carbon dioxide gas at a temperature of 6.00 °C is found to occupy a volume of…

A:

Q: 2. From the data in the table below, calculate the molarity of the NaOH(aq) solution. The molar mass…

A: Data

Q: what type of reaction is fe+h2so4=fe2(so4)3+h2

A: We can determine the type of reaction by observing the changes in the reactant and product sides.

Q: 12) Calculate the K., of silver chromate if the chromate concentration was determined to be 6.54 x…

A:

Q: Question 15 The order of steps for the synthesis of fatty acids starting with malonyl CoA and a…

A:

Q: The maximum amount of silver iodide that will dissolve in a 0.178 M potassium iodide solution is M.

A: Given

Q: For which of the following reactions is it NOT important that the species collide with the correct…

A: According to the collision theory of reaction rate, the reactant molecules must collide with each…

Q: alculate E° and K 2F2(g) + H2O = F2O(g) + 2H+ + 2F-

A:

Q: NH₂ primary amine secondary amine tertiary amine most basic? most nucleophilic?

A: Here we have to identify which one is most nucleophilic and which one is most basic amongst given…

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.