Please check my work. Also, did I round to the appropriate number of significant figures

Q: Consider the expression. 7.90 × 10–5 x(0.100 + x)? You can solve for x using a technique called…

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Q: A sample of NaNO3 is partially decomposed by heating, producing O2 gas that is collected safely over…

A: When a gas is collected over water, some water vapors are also present along with the gas. In this…

Q: The graph shows a heat curve for an unidentified substance discovered by the Mars rover. What is…

A: We can determine Fusion temperature ( melting or freezing point ) and vaporization temperature from…

Q: ST6D.1 (activation energy) - Determine the activation energy [in kJ/mol] for a reaction given the…

A: Given- T1 = 300 K        k1 = 11.4 /M.s T2 = 310 K.         k2 = 21.8 /M.s

Q: What condition must be met for a battery to be rechargeable? O The electrochemical reaction of the…

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Q: (c) At 12 °C, 39.7 g of compound A are dissolved in 4 L of carbon disulphide and the osmotic…

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Q: unit for specific energy?

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Q: Give a complete mechanism and the major product for the following reaction sequerica Please be sure…

A: Wittig reaction : Sn2 reaction between methyl bromide and TPP gives salt. Salt is treated with BuLi…

Q: 9.) When atoms are heated or stimulated to high energy levels, they release light. Which of the…

A: The given question discusses about the interaction of a given substance with a source of energy and…

Q: Which would describe an exothermic reaction which undergoes an increase in entropy? O AHxn 0 and ASn…

A: We are given two questions , one is based on thermodynamics of reaction and the another one is on…

Q: To 500 g of K2Cr207 solution with a mass fraction K2Cr207 5% added 300g of water. Determine the mass…

A: Given :-  Mass fraction of K2Cr2O7 = 5%  Mass of solution = 500 g  Mass of water added to the…

Q: The nickel–cadmium battery (NiCd battery or NiCad battery) is a type of rechargeable battery using…

A: The nickel–cadmium battery (NiCd battery or NiCad battery) is a type of rechargeable battery using…

Q: Zinc lorns sulfate ions ANDDE > > > > > >

A: In Galvanic cell,  Left hand side is oxidation half.cell and right side is reduction half cell. Salt…

Q: 13 of 23 Match the items in the left column to the appropriate blanks in the sentences on the right.…

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Q: 4. What is the form of the total vibrational partition function for a polyatomic molecule

A: For an isolated molecule of n atoms, the number of vibrational modes (i.e. values of j) is 3n − 5…

Q: Use the standard reaction enthalpies given below to determine AH°rxn for the following reaction: 4…

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Q: AR a - 4CDU-AD, 4CBa How many grams of AD, IsMW-285.72 g/mol would be made from the reaction of…

A: The balanced equation given is  AB4 (aq) + 4 CD (aq) → AD4 (aq) + 4 CB (aq) Number of molecules of…

Q: शिकाल्ब गन वेगण्णंणंद भएवपत्कोल- ०रावळीना जबवतीक व ए्रवकाट ेतपनीब्ल. ब्बकण केवोरी जटवत्वीनाह ल…

A: Balanced the following redox reaction under basic conditions ---

Q: Complete the following reactions by providing either the reactant(s), product(s) or reagent(s) where…

A: Detail solution is given below

Q: Calculate the pH and pOH of an aqueous solution that is 0.75 % HCI, by mass, and has a density of…

A: Given :-  % by mass of HCl = 0.75%  density of solution = 1.04 g/mL  To calculate :-  pH and pOH for…

Q: To treat a burn on his hand, a person decides to place an ice cube on the burned skin. The mass of…

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Q: An equilibrium mixture of PCI, (g), PCI, (g), and Cl, (g) has partial pressures of 217.0 Torr, 13.2…

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Q: Explain in detail which of the following compounds (A or B) when reacted with acetophenone under…

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Q: Which reagent would accomplish the following transformation most efficiently? OH CI (A) Cl2 (B) HCI…

A: The reaction given is,

Q: Fusidic acid is a weakly acidic drug with a pKa of 4.6. It is available as the sodium salt (fusidate…

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Q: polar bond in

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Q: General Chemistry 4th Edition McQuarrie • Rock • Gallogly University Science Books presented by…

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Q: Select all of the true statements regarding chemical equilibrium. The concentrations of reactants…

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Q: 2 BrCl(g) is At 500K, the equilibrium constant for the reaction Cl2(g) + Br2(g) Kc = 0.031. If the…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: Draw the major product of this reaction. Ignore inorganic byproducts. 1 TSOH, H2O Drawing TSOH, H2O…

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Q: The pk, for HCN(aq) is 9.21. What is the pH of a 1.245 M solution of NaCN? O a. 11.95 O b. 1.24 O c.…

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Q: Question 18 Calculate the activation energy for the reaction (in k]/mol) when at 618 K the rate…

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Q: Predict the major and minor products for the following reaction. OTS ? NaOE

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Q: A chemical system has AE>0, q>0, w 0. Choose the correct statements conceming this system. Choose…

A: This question is related to thermodynamics.  Exothermic reactions are those in which heat energy is…

Q: The mole fraction of Calcium chloride in an aqueous solution is 0.0942. What is the mass percent of…

A: Mole fraction of CaCl2 = 0.0942

Q: What is the molar mass of a compound that has 7 atoms of an element with molar mass 20.63 and 18…

A: 1 mole = 6.022×1023 (Avogadro's number)  The mass of 1 mole of molecules of a substance is called…

Q: This structure will form when a hydroxyl group form a bond with a carbonyl group. a.Aldehyde…

A: Organic compounds having -HC=O functional group are called aldehydes  Organic compounds having -OH…

Q: Calculate the Ka of an acid, HX, whose ionization is 31% when CHX= 0.60 M (Note that the %…

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Q: Use the following equation to calculate the AH°xn-in Kj/mole for the combustion reaction of C3H15OH.…

A: Given: The combustion of C8H15OH.

Q: s its final temperature if

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Q: The law of thermodynamics states that every spontaneous process moves towards greater entropy.…

A: First law:  energy can't be created or destroyed. Second law :  The entropy increases for any…

Q: Balance the following REDOX equation in ACIDIC conditions: A2O72-  +  B2O42-  ->A3+  +  BO2

A: Balance the following REDOX equation in ACIDIC conditions:

Q: Calculate the number of C atoms in 5.50 g of C. 6.02 x 10 23 C atoms O 3.31 x 10 24 C atoms O 5.01 x…

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Q: 1) t-BUOK 2) NBS, hv Br 'N, 1 R 2.

A: Reaction : E2 elimination of alkyl iodide. Reaction 2 : Allylic bromination using NBS.

Q: Which of the following metals can act as a sacrificial anode to protect iron? Zn Ni Pb Co

A: Given metals: Zn Ni Pb Co We have to find the metal that can act as a sacrificial anode to protect…

Q: d) Determine the velocity along the line of sight to a star that exhibits Balmer lines redshifted as…

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Q: Determine the mass, in kg, of HgO that must decompose to form 70.4 LO2 gas at STP. 2H9O(s) 2Hg() +…

A: The reaction given is, => 2 HgO (s) → 2 Hg (l) + O2 (g)  Given: Volume of O2 produced at STP =…

Q: element is being reduced

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Q: expression that relates total pressure of gas to the total kinetic energy of an Derive an ensemble…

A: The pressure of a gas is equal to the total kinetic energy of the molecules in a unit volume of the…

Q: 27

A: For the reaction., A (aq) <-----> B (aq) ∆H= - 350kJ/mol

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.