1.A compound is composed of the elements C, H, O, and Br. Combustion analysis of a 6.17 g sample of the compound produced 3.91 g of carbon dioxide and 1.20 g of water.  In a separate experiment reaction of a 2.63 g sample of the compound with excess silver produced 3.56 g of AgBr. What is the empirical formula of the compound? Group of answer choices none of the answers are correct C3H3O2Br C2HO2Br C2H3O2Br

Q: Select the balanced net ionic equation for the reaction between aqueous lead (II) nitrate and aqueou...

A: Given aqueous lead(II)nitrate and aqueous potassium iodide We need to write the balanced net ionic e...

Q: At the freezing point of water, Kw = 1.2 x 1015, What is the pH of ice water?

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Q: A. acidic B. basic C. neutral

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Q: An unknown compound has the following chemical formula: NO, where x stands for a whole number. Measu...

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements presen...

Q: Gaseous ethane (CH;CH,) reacts with gaseous oxygen gas (02) to produce gaseous carbon dioxide (CO,) ...

A: Given that, mass of ethane= 13.2 g, molar mass=30 g mol-1 mass of oxygen=45.8 g, molar mass= 32 g mo...

Q: Consider the following equilibrium with K = 2.3 x 10-6: %3D N2 G) + 3H2 G) 2NH3 () 0.1 moles of N,, ...

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Q: Calculate the distribution ratio (organic/aqueous ) of HA.

A: Distribution ratio is defined as the ratio of solute distributed between two solvents.              ...

Q: i. The ionization energy of fluorine (F) is ~1700 kJ/mol, while the ionization energy of difluorine ...

A: 1.Above diagram on right side is applicable for fluorine gas.  In fluorine (F) the HOMO( highest occ...

Q: Q3// The basicity constant Kp for ammonia is 1.75 x 10 at 25°C. Calculate the pH and pOH for a 1.00 ...

A: As per our guidelines we can only solve first question. Please resubmit the other questions as next ...

Q: The dye has a percent composition of 75.95% C, 17.72% N, and 6.33% H by mass with a molar mass of ab...

A: % of C = 75.95 % of N = 17.72 % of H = 6.33 Molar mass of dye = 240 g/mol   The question requires to...

Q: This question is based on the five compounds (A-E) given below. (A) CH;-CH=CH-CH3 (B) (C) CHCI=CHBR ...

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Q: In an aqueous solution of potassium chloride, the solute is (1) Cl-only (2) KCI (3) K+ only (4) H20

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Q: identify the conjugate acid and con jugate base   CH3COO- + HCl ⇄ Cl- + CH3COOH

A: CH3COO^- + HCl -> Cl^- + CH3COOH  

Q: A mixture of helium and neon gas is expanded from a volume of 83.0 L to a volume of 87.0 L, while th...

A: Initial volume (V1)= 83.0 L Final volume (V2) = 87.0 L Pressure (P) = 64.0 atm  

Q: For the following descriptions of molecules, draw the Lewis structure (showing all atoms, lone pairs...

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Q: percent yield of water.

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Q: UV - spectra of two Bomers of cinmamic auld g dentify the is amer 2016|| The absorb at 272 nm & 268 ...

A: This Problem Is Based upon UV Spectroscopy, and it can be solved by the concept of steric hindrance ...

Q: A 1.00 L solution contains 3.50×10-4 M Cu(NO3)2 and 2.500×10-3 M ethylenediamine (en). The Kf for Cu...

A: Given data : 

Q: Does the addition of HCl to the samples being titrated affect the solubility of calcium hydroxide? W...

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Q: The decomposition of phosphene (COCI2) gas into carbon monoxide (CO) and chlorine (Cl2) gases is ver...

A: Given reaction is  COCl2 (g) <--> CO (g) + Cl2 (g)  Equilibrium constant , Kp = 1.32×10-8 Init...

Q: If we are expecting about 48 g of citric acid per L of lemon juice, how many moles of citric acid sh...

A: Given that we expect 48 g of citric acid per L of lemon juice. We have to determine the moles of cit...

Q: Which of the following is the C3 epimer of L-idose? но но Но но H- он H- OH но но но H. OH OH H- он ...

A: The C-3 epimer of L-idose is given below

Q: Calucate the atomic mass: Titanium: Ti-46 (7.9 %), Ti-47 (7.3 %), Ti-48 (73.9 %), Ti-49 (5.5 %), Ti-...

A: Given data : Ti-46 = 7.9 % Ti-47 = 7.3 % Ti-48 = 73.9 % Ti-49 = 5.5 % Ti-50 = 5.4 %

Q: Consider the following equilibrium with K = 2.3 x 10-6: N2 (3) + 3H2 3) + 2NH3 (§) 0.1 moles of N2, ...

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Q: 4.Assume that you test an unknown solution and find that it has a pH of 7.2. What type of solution i...

A: The acidic solution has pH < 7. The neutral solution has pH = 7. The basic solution has pH >7.

Q: What role did enthalpy play in the melting process of the crayons? 2. How did the melting process de...

A: 1. Answer - According to the question - Below the melting point, the changes in enthalpy and entropy...

Q: i) Balance the equation below for the formation of one mole of ammonia, NH3, from its elements.     ...

A: Mean Bond energy of H-H = 436 kJ/mol Mean Bond energy of C-C = 348 kJ/mol Mean Bond energy of N-N = ...

Q: Calculate the mass of ammonia (NH3) that contains a trillion (1.0 × 102) hydrogen atoms. Be sure you...

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Q: molarity

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Q: A major component of gasoline is octane (CH15). When octane is burned in air, it chemically reacts w...

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Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...

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Q: A mixture of helium and hydrogen gas is expanded from a volume of 89.0 L to a volume of 90.0 L, whil...

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Q: 4) The decomposition of phosphorus pentachloride (PCIS) into phosphorus trichloride (PCI:) and chlor...

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Q: How much MgCl, must you dissolve in water to prepare 20 mL of a 2.0 M solution?

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Q: This question is based on the five compounds (A-E) given below. (A) CH;-CH=CH, (B) CH;-CHBR-CH2-CH3 ...

A: Let us discuss one by one.

Q: Calculate the mass of glucose (C,H,20,) that contains a billion (1.00 x 10') hydrogen atoms. Be sure...

A: No. of H atoms = 1.00×109 atoms mass of glucose = ? molar mass of glucose = 180 g mol-1 #of H in glu...

Q: pH of

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Q: For the following descriptions of molecules, draw the Lewis structure (showing all atoms, lone pairs...

A: Here we have to write Lewis structure of the compounds in the following conditionss i.e one C is sp^...

Q: The half-life (t) of a/an order reaction is independent of the initial concentration (A) (B) First Z...

A: Half life is the time when the initial concentration is left just half.  

Q: 1. Write the formulas for the six ions that are always soluble:

A: Formulas for the six ions that are always soluble: 

Q: A 6.50 g of solid compound X was dissolved in 100 g water. The freezing point of the solution was fo...

A: The molecular weight of the solute can be calculated by using the colligative properties, depression...

Q: The longest wavelength of light that can be absorbed by N2 is ~80 nm, while the longest wavelength o...

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Q: For items 3 and 4: SIO2 + 4HF SİF4 + 2H2O 3. What is the mole ratio of HF to SIF4? 4. What is the mo...

A: Number of moles is calculated by dividing given mass with molecular mass. 

Q: 5- 0.853 mol of methane gas occupies a volume of 15.0 L at a certain temperature and pressure. What ...

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Q: Directions: Calculate the empirical and molecular formula of the given. Question: Vitamin C (ascorb...

A: Given,  Mass percent of C = 40.92%  Mass percent of H = 4.58%  Mass percent of O = 54.50%  Molecular...

Q: The following reaction is first order in N2O5N2O5: N2O5(g)→NO3(g)+NO2(g)N2O5(g)→NO3(g)+NO2(g) The ...

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Q: Phosphoric acid, which is commonly used as rust inhibitor, food additive and etching agent for denta...

A: Given, The first step, phosphorus and oxygen react to form diphosphorus pentoxide: P4(l) + 5O2(g) --...

Q: Which of the following is the most basic solution (highest [UH ])? O pH 12 %3D O pOH = 1.0 o [OH] = ...

A: 1) pH=12 we know, pH + pOH = 14 pOH = 14 - 12 = 2

Q: This question is based on the five compounds (A-E) given below. (A) CH;-CH=CH-CH3 (B) (C) CHCI=CHBR ...

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Q: is question is based on the five compounds (A-E) given below. CH;-CH=CH, CH;-CHBR-CH2-CH; cyclopropa...

A: Organic chemistry classification:   As per our guideline we have to answer first question only.

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".