Write the formula equations and then balance each of the following reactions a. chromium sulfide plus hydrochloric acid gives chromium chloride and hydrogen sulfide b. aluminum metal plus hydrochloric acid gives aluminum chloride plus and hydrogen gas c. aluminum hydroxide plus sulfuric acid gives aluminum sulfate plus water

Q: Methylamine, CH3-NH₂, is a weak base (pk = 3.36). Which of the following acids is sufficiently…

A: Given that, Methylamine(CH3NH2) is a weak base pKb=3.36 pKa+pKb=14 (at25C) pKa value for some acids…

Q: Using standard heats of formation, calculate the standard enthalpy change for the following…

A: Since, The standard enthalpy of the formation is defined as change of enthalpy of 1 mol of the…

Q: Suppose a 250. mL flask is filled with 0.40 mol of CO, 1.6 mol of CO₂ and 0.20 mol of H₂. This…

A: The ICE table gives the initial concentration of compounds, change in concentration of compounds,…

Q: Please answer fast Given the following equations, determine the standard enthalpy of formation…

A: Enthalpy of formation: When one mole of the substance is formed by its constituent elements in its…

Q: CrO4²- is more toxic than Cr³+, and Cr³+ can be converted to CrO4²- by HOCI slowly in the…

A: The given reaction is - Cr3++HOCl +???↔CrO42- + Cl-+H+

Q: Part B Br | H H H | | | H-C-C-C-C-H 1 HHHH Draw the molecule on the canvas by choosing buttons from…

A: In the skeletal formula, each covalent bond between carbon-carbon or carbon-heteroatom is…

Q: Below are drawn three resonance structures corresponding to a real molecule. Which of these…

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Q: For each system listed in the first column of the table below, decide (if possible) whether the…

A: The given problem is based on the concept of entropy.

Q: Attempt to explain the main features of the ¹H NMR spectrum of crotonic acid (4), Spec. 4. Deduce…

A: We are given the 1H NMR spectrum of crotonic acid(CH3CH=CH-COOH) of unknown stereochemistry(cis or…

Q: How are I and II related? and H3C-CECH || Select one: OA. They are identical compounds. OB. They are…

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Q: 0.799 M 0.575 M 0.340 M 0.575 M 0.799 M 0,252 M Use this information to write a rate law for this…

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Q: 2. Nitric oxide (NO) reacts with oxygen gas to form nitrogen dioxide (NO₂), a dark-brown gas: 2NO(g)…

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Q: 3. Write in the product of 3-sec-butyl-1-octyne with the following reagents: 1) 1. BH, 2. H₂O₂, OH…

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Q: Calculate the cell potential for the reaction as written at 25.00 °C,…

A: To determine the cell potential for the reaction:

Q: For each system listed in the first column of the table below, decide (if possible) whether the…

A: Entropy is the degree of disorderness or degree of randomness. As Temperature increases, entropy…

Q: Using the Bond Enthalpies Table (Table 5.4) , the ∆H for the following reaction is ________. 2H-Cl…

A: From standard data ,  Bonds                Bond enthalpy in KJ/mol  H-Cl                        431…

Q: The half-life of a reaction, f/2. is the time required for one-half of a reactant to be consumed. It…

A:

Q: For each of the salts on the left, match the salts on the right that can be compared directly, using…

A: Given : formula of compounds. Solution tip : count the number of ions present in the compound.

Q: Balance the equation Run in an acidic solution:  MnO2+Cu+2 + H+-->MnO4-+Cu++H2O

A: we have to balance the redox equation in acidic medium using half reaction method

Q: The following information is given for aluminum at 1 atm: Tb = 2467.00°C Tm = 660.00°C Specific heat…

A: Given : Tb = 2467.00 °C, Tm = 660.00 °C Formula we will use ms∆T and m∆Hv

Q: Which equation below is NOT correctly balanced? 2H3PO4 + 3Fe3H2+ Fe3(PO4)2 Sg + 802 8SO₂ 4Pb(NO3)2 +…

A: A balanced chemical equation contain equal number of atoms of each element on both sides of a…

Q: Which of the following compounds has the highest normal boiling point? Select one: O A.…

A: Boiling point depends on several factors such as  Intermolecular hydrogen bonding  Functional…

Q: 4. Draw both chair conformations of 1S, 3S-dibromo-5R-methylcyclohexane. Indicate which conformation…

A: We know in chair form of cyclohexane the confirmation in which bulky group is present at equatorial…

Q: Reaction BaCO3(s) 2Mg(s) + O₂(g) → 2MgO (s) 1 BaO(s) + CO,(g) - Mg(s) + ZnI₂ (aq) MgI₂ (aq) + Zn (s)…

A: Given Reactions equations are: BaCO3 (s) → BaO (s) + CO2 (g) 2Mg (s) + O2 (g) → 2MgO (s) Mg (s) +…

Q: Calculate the concentration (in mg CaCO3/mL solution) if 250 mg of pure CaCO3 was dissolved in 1M…

A: CaCO3(s) + 2HCl(aq) → CaCl2(aq) + H2O(l) + CO2(g) no. of moles of Ca2+ = (250 / 100) = 2.5 mol…

Q: eneral formula, general Determine the electron geometry and molecular geometry 3-D: PCI, SF., SF,…

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Q: Please name the following molecule according to IUPAC naming system and use the two ones that look…

A: To write the IUPAC name, we first need to select the longest parent carbon chain. Then we need to…

Q: From a given 700.0 mL stock solution of analyte, a scientist transfers 30.0 mL aliquot to a flask,…

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Q: Identify the electrophilic site in the following molecule.

A: The electrophilic site means the atom that is electron deficient and is thus an electron-loving atom…

Q: Determine the mass in grams of 3.92 × 10²¹ atoms of arsenic. (The mass of one mole of arsenic is…

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Q: Calculate the absorbance of 0.00038 moles in 24.2 mL of solution given the molar absortivity is 1168…

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Q: I need help the osmolarity to show work with this table

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Q: For the reaction system: H2(g) + X2(g) = 2HX(g), Kc = 24.4 at 300 K. A system at equilibrium made up…

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Q: Consider 3-methylpentane. Using a Newman projection formula, draw the most stable conformation of a…

A: Given  3-methylpentane. Using a Newman projection formula, draw themost stable conformation  C2-C3…

Q: In an IR spectroscopy of a recrystallized salicylic acid Discuss other chemical analysis methods…

A: IR spectroscopy is used to detect functional group only. Confirm structure cannot be determined by…

Q: Gases exert a measurable pressure (P) on the walls of their container. The SI unit for pressure is…

A: The relationship between pressure is the pascal  and millimeters of mercury is 101325 Pa = 760 mmHg…

Q: If the formic acid (HCO2H) Ka is 1.8 × 10-4, then the pH of a 0.35 M solution of sodium formate…

A: Here we are are required to find the pH of the solution of sodium formate.

Q: A chemist must prepare 100. ml. of 1.00 M aqueous barium acetate (Ba(C,H,O.),) working solution.…

A: Here we are required to find the volume of barium acetate solution needed to prepare 100 ml of 1M of…

Q: Gaseous methane (CH4) reacts with gaseous oxygen gas (0₂) to produce gaseous carbon dioxide (CO₂)…

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Q: Hydrogen reacts with oxygen to produce water as follows: 2H₂(g) + O₂(g) → 2H₂O(g) How many moles of…

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Q: What is the relationship between the following two compounds? H CH₂ HC H ОН н Mitle Choice identical…

A: Given compounds:

Q: A 2.69 gram sample of a KCl and KClO3 mixture was found to contain 0.01268 mol of KClO3. What is the…

A: It is a problem based on general chemistry. Here we will find the percent of KClO3 in the mixture by…

Q: SH SH Select one: O A. They are constitutional isomers. OB. They are identical compounds. OC. They…

A:

Q: Which will require more heat, increasing the temperature of 1 molmol of C8H18(l)C8H18(l) by a…

A: The given substances are   1 mol of C8H18(l)  1 mol of H2O(l)  Which will require more heat to…

Q: The graph below shows the titration of 9.15 g of a strong acid with 1.00 M NaOH. Which strong acid…

A: Given, mass of strong acid = 9.15 g Concentration of NaOH solution = 1.00 M = 1.00 mol/L Volume of…

Q: In the molecule shown below, which of the labeled C,C single bonds is the longest? CH CH₂ -CH=CH- X…

A:

Q: Draw the Lewis structure of C₂H₂Cl₂ (both Cl atoms on one C atom) and then determine if the molecule…

A: we have to draw the Lewis structure of C2H4Cl2 in which both Cl atoms are attached to same carbon…

Q: <Week 1 Assignment: Chemical Kinetics + Reaction Order For the reaction A+B+CD+E, the initial…

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Q: reaction 2K CIO3(s)→ 2K Cl(s) + 30₂ (g) HI(aq) + NaOH(aq) Nal(aq) + H₂O (1) 4 2CH₂CH₂(g) + 70₂(g) →…

A: Given that, Some examples of reaction and we have to identify the type of reaction.

Q: Al4C3 (s)    +  12 H2O (l)     →   4 Al(OH)3 (s)   +  3 CH4 (g)  In this reaction, 0.3455 mol of…

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".