An unknown compound has the following chemical formula: where r stands for a whole number. Measurements also show that a certain sample of the unknown compound contains 9.6 mol of oxygen and 3.17 mol of sulfur. Write the complete chemical formula for the unknown compound. D.

Q: Identify the oxidizing agent in the following chemical reaction.          Cu2+(aq) + Fe(s) → Cu(s) ...

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Q: In a study of the decomposition of hydrogen iodide on a gold surface at 150 °C HI(9)-Va H2(9) + V½ I...

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Q: Acetic acid is a weak acid pKa = 4.74. One prepares a buffer solution by mixing 600 mL 0.1M sodium a...

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Q: Match the most likely product with each reaction vPhenol plus excess 1/2 iodine in HNO3 yields A. 2,...

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Q: A chemist is studying the following equilibirum, which has the given equilibrium constant at a certa...

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Q: 3. At a pressure of 780.0 mm Hg and 24.2 °C, a certain gas has a volume of 350.0 mL. What will be th...

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Q: Fill out the following table using the KingDraw Application. Create the structures given, whether it...

A: To write the Chemical name and draw the structure for the given Chemical Formula.

Q: An aluminum atom has a mass of 4.48 x 10 - 23 g and a small airplane has a mass of 5000. kg. Use thi...

A: 1 mol of a substance contains Avogadro number of atoms.  Therefore 1 mol aluminum contains 6.022×102...

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Q: Describe the formation of metal complex with octahedral geometry using all the orbitals of same ener...

A: The formation of an octahedral complex using the orbitals of same energy level.    Since you have as...

Q: write the ionization reaction for each of these KOH CH3NH2

A: To write the ionization reaction for each of these 1. KOH 2. CH3NH2

Q: Is high or low electronegativity associated with increased metal reactivity?

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Q: Give the chemical equation for the combustion of cyclohexene and the combustion of cyclohexene (for ...

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Q: . Balance each of the following equations using the change-in- oxidation-number method: agh gt olle ...

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Q: 1a. Use the given table to construct a temperature-composition diagram for cyclohexane Toluene mixtu...

A: The temperature composition phase diagram represents the information about a binary mixture in vario...

Q: Calculate the mass of glucose (CH,206) that contains a billion (1.000 × 10°) hydrogen atoms. Be sure...

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Q: What mass of Fe,O, is produced when 17.3 L of O, gas react with FeS at 496 K and 5.76 atm. 4 FeS(s) ...

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Q: What is the major product of the following reaction? Pt + H2

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Q: Explain why the dipole moment of ammonia is slightly higher than methylamine.

A: Dipole moment generate due to electric charge and electrongativity difference between atoms. In ammo...

Q: Reaction of an ester with DIBAH/toluene/-78°C followed by H3Ot yields which of the following functio...

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Q: m Calculate the kinetic energy of a 67. g bullet moving at a speed of 499.

A: Given : mass of bullet = 67. g             speed = 499. m/s  To be calculated :- kinetic energy (J)

Q: Calculate the pH when 1.35 g of C6H5COONa (FW = 144.1 g/mol) is added to 38 mL of 0.50 M benzoic aci...

A: The pH can be calculated  as follows 

Q: Calculate the mass of diphosphorus pentoxide (P,0,) that contains a million (1.000 x 10°) phosphorus...

A: Given that, no. of P atoms= 1.000*106 atoms mass of P2O5=?  Molar mass of P2O5=283.889 g mol-1

Q: A chemical engineer is studying the following reaction: HCN(aq)+NH3(aq) → CN (aq)+NH(aq) At the temp...

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Q: 2AgNO3 (aq)  +  MgCl2 (aq)   2AgCl (s)  +  Mg(NO3)2 (aq)Write the balanced net ionic equation

A: Given :-  2AgNO3 (aq) + MgCl2 (aq) --->2AgCl (s) + Mg(NO3)2 (aq) To write :- balanced net ionic e...

Q: What is the pOH of a buffer that consists of 0.275 M methylamine CH3NH2 and 0.461 M methylammonium c...

A: Concentration of methylamine [CH3NH2 ] = 0.275 M Concentration of methylammonium chloride [CH3NH3Cl ...

Q: What is the standard enthalpy of reaction per mole of either HCl or NaOH when 50.00 cm3 of 0.1 moldm...

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Q: Date: 1. Use the Brosted Lowry concept to define a) An acid

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Q: Name the following compounds: 1.[Cr(NH3)6Cl3 , K(Co(EDTA)] and Ni(en)2Cl2  2.[Pt(py)4[PtCl4] and [...

A: Rules to follow in naming transition metal complexes: - If the complex is a salt, the cation is name...

Q: hixture of nitrogen and neon gas is expanded from a volume of 27.0 L to a volume of 50.0 L, while th...

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Q: A. Sucralose, an artificial sweetener comen used by diabetic patients, II. Solve the following probl...

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Q: Ammonia (NH3) chemically reacts with oxygen gas (02) to produce nitric oxide (NO) and water (H,O). W...

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Q: Use the van der Waals equation of state to calculate the pressure P of 3.60 mol of H,O at 479 K in a...

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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: Question: Step1 A4+ + B2+→ A3+ + B3+ Step2 A4+ + B3+→ A3+ + B4+ Step3 C+ + B4+→ C3+ + B2+ Pred...

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Q: Three-dimensional hexagonal boron nitride is made up of sheets of the two- dimensional material desc...

A: B2H6 + NH3 (excess) → (BN)x boron nitride

Q: The decomposition of N2O5 to NO2 and O2 is first order, with a rate constant of 4.80 x 10-4/s at 45°...

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Q: What is its solubility of Ca(OH), in 0.20 M Ca(NO,)2? Kap of Ca(OH), is 6.5x104.

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Q: Hydrogen iodide gas is formed from its elements with a value for Kp = 25.5 at a certain temperature:...

A: Calculate partial pressure of HI at equilibrium....

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Q: What pressure of H, gas is produced if 42.28 g of Al is reacted with excess HCl in a sealed 15.1 L c...

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Q: Draw an energy cycle and use the Standard Enthalpies of combustion values in the table below to calc...

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Q: A mixture of xenon and neon gas is compressed from a volume of 88.0 L to a volume of 73.0 L, while t...

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Q: Provide the product for the following reaction NH,NH2 KOH/ H2O/heat

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Q: Calculate the number of oxygen atoms in a 110.0 g sample of glucose (C,H1,0). Be sure your answer ha...

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Q: In the UV assay of paracetamol you are required to weigh tablet powder "...containing 0.150 g of Par...

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Q: Using the VSEPR model, the electron pair arrangement around the central atom in SF2 is ________

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Q: Meo. Mea * IS Bthe thermodynamic ol kinetLC product? Meo → Meo k design a syntnesis to convert B to ...

A: The solution is as follows:  

Q: (CH3(CH2),CH,) reacts with gaseous oxygen gas (02) to produce gaseous carbon dioxide (CO2) and gaseo...

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.