What is the empirical formula of the compound between calcium and sulfur that has the percent composition 55.6% (by mass) calcium and 44.4% (by mass) sulfur?   CaS2    CaS    Ca2S   CaS4   Ca2S4

Q: When 2.25 mg of anthracene, C14H10(s) was burned in a bomb calorimeter the temperature rose by…

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Q: lewis dot structure of IOF5, draw correct shape, and determine the molecular geometry

A: The structure of a molecule can be determined by using the VSEPR theory. According to this theory…

Q: you have an aqueous solution of calcium nitrate, what are the ions in solution?     2Ca+ + NO3-…

A: Mass of 1 mole = molar mass 1 mole = 6.022 x 1023 entities

Q: Figure 8-5 shows a mechanistic scheme for an organic reaction. The overall reaction is a…

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Q: Provided detailed mechanism

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Q: Noting the curved arrows, draw all the product(s), organic and inorganic, of the following reaction.…

A: In an organic reaction mechanism, a curved arrow represents the transfer of electrons. In an organic…

Q: Which of the reactions shown below are coff 0.X. H₂O* CO₂H CO₂Et CO₂Et OH NaOCH₂CH3 HOCH₂CH3…

A: Given are organic reactions.Let's see products for each reaction in next step.

Q: Figure 8-5 shows a mechanistic scheme for an organic reaction. The curved arrow that is INCORRECT is…

A: reaction mechanism is the step by step sequence of elementary reactions by which overall chemical…

Q: 3. How to synthesize the alcohol shown below? OH pht Ph

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Q: A chemist measures the enthalpy change AH during the following reaction: 4 Fe(s) + 30₂ (9) 2 Fe₂O₂…

A: The reaction taking place is given as,=>

Q: Each row of the table below describes an aqueous solution at about 25 °C. Complete the table. That…

A: • pH : pH can be defined as the negative logarithm of H3O+ ion concentration.pH = -log[H3O+] when pH…

Q: Provide a plausible synthesis for the compound on the left from the compound on the right. HO COOH…

A: The given synthesis scheme is shown below.We have to carry out the above synthesis.

Q: 1. Follow IUPAC rules to name the following molecule. a. Circle or highlight the longest chain b.…

A: We have to name the compounds according to IUPAC Rule.

Q: Identify a substance that is not in its standard state.   Question 10 options:   O2(g)   H2(g)…

A: Identification of substance that is not in its standard state.

Q: E. Provide the name of the compound below.

A: 1.First identify the longest carbon chain.2. The carbon atoms of the parent chain are numbered to…

Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab,…

A: The given balanced chemical equation is   2CH3OH(l) +3O2(g) 2CO2(g) + 4H2O(l)The standard enthalpy…

Q: @ which term describes the following process? A-B-→A• + •B @homolysis b) heterolysis ) hydrolysis d)…

A: In a process known as homolytic cleavage, a chemical bond is broken while allowing each atom to…

Q: An aqueous solution of CH3NH3NO3 will be basic, because of the ionization of CH3NH2. basic, because…

A: The acid-base nature of the salt solution depends on the nature of the acid and base from which the…

Q: Which of the following are the balanced half reactions for the reaction below? 2Na+ Cl2 → 2NaCl…

A: Given:Identify the balanced half-reaction.A half-reaction is a fundamental concept in…

Q: A student runs two experiments with a constant-volume "bomb calorimeter containing 1000. g or water…

A: The objective of the question is toIdentify the reaction as exothermic or endothermic.Calculate the…

Q: Question: Carbon has 6 protons, 6 neutrons, 6 electrons, and a valence of 4. Draw and label a Bohr…

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Q: When 2.50 g of copper metal reacts with molecular oxygen, the copper oxide product of the reaction…

A: Empirical formula represents the simplest whole number ratio of atoms of elements present in the…

Q: Which of the following solutions will have the highest pH, assuming complete dissociation? Remember:…

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Q: 0.100 mol of sodium chloride weighs 5.84 g   True False

A: Given,0.100 mol of sodium chloride weighs 5.84 g

Q: Consider separate 100.0-g samples of each of the following: NH3, N₂O, HCN, N₂H4, and HNO3. Which of…

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Q: Which is a possible correct name for an amine? ON-ethylpyridine N-ethylpyrrolidine O…

A: Amine is functional group that contains nitrogen.To find out correct name, let's draw structures…

Q: 11 The least stable conformation of ethane is: @eclipsed b) staggered c) antid) gauche e) boat

A: Here firstly we needs to know about all the strains in the molecule.The given four options are the…

Q: Calculate the pressure (in atm) of a 5.60 mol sample of neon gas at 500.0 K in a 1.00 L container…

A: The moles of sample neon gas = 5.60 mol The temperature of the gas = 500.0 KThe volume of the gas =…

Q: Draw a structural formula for the following compound: meso-2,3-dibromobutane. . Use the wedge/hash…

A: If an organic compound contains more than one chiral carbon and a plane of symmetry then the…

Q: Give the main organic product that would form after the following reaction. OMe OMe H₂O H*

A: Acetals, hemi-acetals, ketals and hemi-ketals on reaction with water in the presence of acid…

Q: Starting with the following equation, Pb(NO₂)₂(aq) + K PO (aq) → Pb (PO)₂(s) + KNO₂(aq) calculate…

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Q: [Review Topics] [References] Use the References to access important values if needed for this…

A: A chemical equation, which gives the heat change (evolved or absorbed) during the reaction, is…

Q: Estimate ArxnH (750 K) for the reaction 12 N2 (g) + 3 2 H2 (g) → NH3(g) from the listed value of the…

A: The objective of the question is to calculate the  at

Q: Question: Write the greek letter with the correct charge in the correct positions on the water…

A: Oxygen has six valence electrons. IT forms sigma bonds with hydrogen by sharing one…

Q: Find the pH of a 0.50 M solution of NH4NO3 at 25 given the following values (also at 25 °C). Kb for…

A: Given,Molarity of NH4NO3 = 0.50 Mat 25 oC,     Kb of NH3 = 1.8 x 10-5                   Ka of HNO3…

Q: What will the organic product of the following reaction be?

A: Alkyl halide reacts with ammonia to form a primary amine. Alkyl halides react with a primary amine…

Q: Give correct detailed Solution with explanation needed..don't give Handwritten answer

A: According to the Lewis definition, the species which donates lone pair of electrons acts as a Lewis…

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

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Q: Suppose that each of the following pairs of aqueous solutions is combined. For those where a…

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Q: For the Lewis acid-base reaction: -۲ پلمه Part: 0 / 2 Part 1 of 2 H Label the electrophile and…

A: This is an lewis acid base reaction.The spaces which donates lone pair of electrons is called as…

Q: According to the videos, internal energy of a chemical system can be defined as (select all correct…

A: The concept of internal energy in a chemical system plays a fundamental role in the field of…

Q: a. How much methylcellulose 1500 should be weighed? viscosity for a suspension is 750 cps. Note…

A: In the realm of pharmaceutical compounding and formulation, precision and careful calculation are…

Q: 1. Draw the major product of the following reaction? HO HO excess PCC

A: PCC(pyridinium chloro chromate) is a oxidising reagent,it oxidise primary alcohol(which is given in…

Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains…

A: The water bath contains ,weight of water = m = 9.60 kg  = 9,600 g  (1 kg = 1000 g) Initial…

Q: In each row check off the boxes that apply to the highlighted reactant. reaction HCIO(aq) +…

A: Acid -Base definition

Q: (14) The major product of the following reaction is: Pd/c 10000 b) H d) choco

A: H2, Pd/C is used for the hydrogenation of alkenes. Hydrogenation of substituted cyclic alkenes give…

Q: 9

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

Q: a. State the van-der-Waals equation for real gases and explain the variables.

A: Since you have asked multiple question, we will answer the first question for you. If you want any…

Q: Answer choices for blank 1:  R S Answer choices for blank 2:  R S Answer choices for blank 3:  R…

A: R-S configuration

Q: 4 A nucleophile reacts readily with: a) an electron-rich species b) an d) a Lewis Base e) a Bronsted…

A: A nucleophile is a electron rich species and a electron rich species reacts with a electron…

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.