Identify the molecular formula of a compound that was found to contain 40.00% carbon, 6.71% hydrogen, and 53.29% oxygen. The molar mass of the compound is 60.05 g/mol.

Q: 13. Some 02(g) was collected over water in a volume of 55.3 mL at 20. °C under atmospheric pressure ...

A: Consider the given information is as follows; Volume of water (V) = 55.3 mL = 0.0553 L Temperature (...

Q: What is the pOH of a solution that has [OH ]eg = 1.5E-4 M?

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Q: If the value of n = 1 ... The quantum number l can have values from  to . ... The total number of or...

A: n = principal quantum number l =  azimuthal quantum number ml =  magnetic quantum number  l can have...

Q: lassify the following equations as a synthesis, combustion, decomposition, single replacement, or do...

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Q: A 72.0 mL sample of 1.00 M NAOH is mixed with 59.0 mL of 1.00 M H,SO, in a large Styrofoam coffee cu...

A: The given thermochemical equation is: H2SO4(aq) + 2NaOH(aq)  ----> Na2SO4(aq) + 2H2O(l) ; ∆Hrxn =...

Q: Block Electron Configuration Element (s, p, d, or f) Be C Ar Tc Sn Pr Hg Fr Number of Valence electr...

A: Every elements have a tendency to attain their nearest noble gas configuration, in order to get maxi...

Q: A polyprotic acid is an acid that __________. A) Contains more than one hydrogen B) Can react w...

A: Polyprotic acid is an acid and it can donate the multiple protons, that means it contains rich acidi...

Q: Which of the following is not a characteristic of buffer solutions? O They cannot be tailored to mai...

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Q: Rank the basic properties of the following compounds by explaining the factors that influence them: ...

A: According to Lewis , a base is a substance that can donate an electron to form a covalent a bond. As...

Q: The Lewis structure for SF4 is shown. What is the electron-pair geomet around the central atom? :F: ...

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Q: -/2 O O Question No. 19 The difference in number of water molecules in gypsum and plaster of paris i...

A: We should write the formula  of both then take a difference  of water molecule. 

Q: Show how you solved these problems by writing your solutions in other sheets of paper. Answers and s...

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Q: Determine the mass in grams of 2.25 × 10²¹ atoms of copper. (The mass of one mole of copper is 63.55...

A: Number of copper atoms = 2.25 × 10²¹ atoms

Q: Correctly balance the following chemical equation. When there is no coefficient to add enter the num...

A: Balanced chemical equation :- A chemical equation is said to be balanced if it has equal number of a...

Q: 8.8 „Identify the compounds of the given molecular formulas that show b. Two 'H NMR signals: C,H,CI,...

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Q: Given the reaction: 4NH3 (g) + 5 O2 (g) → 4 NO (g) + 6 H2O (l) When 1.25 mole of ammonia reacts, wha...

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Q: Question No. 5 How many of the given oxides show acidic property? Na20, K20, SO2, SO3, CO2, Zn0, Al½...

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Q: Show detailed solutions to each question. Remember to convert your temperature to Kelvin when solvin...

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Q: Construct the orbital diagram to show the electron configuration of phosphorus, P. Be sure to arrang...

A: According to the Aufbau principle, the electrons are filled according to the increasing energy of th...

Q: EXERCISE Figure 1 shows a chromatogram of a two-component mixture on a 250 mm packed column. The pea...

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Q: eous sol precipitate will form, enter its empirical formula in the last column. Does a precipitate f...

A: 1) NH4Br (aq) + KOH (aq) = KBr (aq) + NH3 (g) + H2O (l) Potassium bromide is highly soluble in water...

Q: Complete and balance the reaction. Al(OH)3(s)+?HCl(aq)=? Write the net ionic equation Water is on...

A: complete & balance the reaction :  Al(OH)3(s) + ?HCl(aq) ---> ?  Net ionic equation = ?  Name...

Q: Acetylene (C,H2) gas and oxygen (O,) gas react to form carbon dioxide (CO,) gas and water (H,0) vapo...

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Q: A chemist adds 215.0 ml. of a 0.29 mol/L copper(11) sulfate (CUSO,) solution to a reaction flask. Ca...

A: Mass of CuSO4 = 9.95 g

Q: AsFe

A: Lewis structures are diagrammatic representation of the valence electrons in the molecule obtained b...

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

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Q: 16. Sketch in a graph how the volume of an ideal gas (V, vertical coordinate) depends on its absolut...

A: As we know that ideal gas equation  PV = nRT so if p and n are constant then we will be directly pr...

Q: A 9.00 L tank at 24.0 °C is filled with 16.5 g of dinitrogen difluoride gas and 9.40 g of chlorine p...

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Q: 1. A weather balloon has a volume of 35L at sea level (1.0 atm). After the balloon is reeased it ris...

A: Few questions based on gas laws, which is to be accomplished.

Q: 1. A. Write the structure of the pentapeptide GLDSC. B. What is the complete name of this pentapepti...

A: peptide are formed from the amino acid via condensation reaction between amine group of one amino ac...

Q: How many covalent bonds does nitrogen form if each of its unpaired electrons participate in one bond...

A: Electronic configuration of nitrogen: 1s2 2s2 2p3 So three unpaired electron in p orbital of nitroge...

Q: 3. A 20.0 mL solution of 0.200 M H3PO4 was fully titrated with 70.0 mL of a solution of calcium hydr...

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Q: Which of the following set of quantum numbers (ordered n, l, m, Ma) are possible for an electron in ...

A: The principal quantum number(n) is an integer that is the number of the electron's shell. The value ...

Q: Al reacts with hydrochloric acid according to the following balanced equation: 2 Al + 6 HCl ==>  2 A...

A: 2 Al + 6 HCl ==>  2 AlCl3 + 3 H2

Q: Use the following data to determine what is the base dissociation constant for hydrogen carbonate (H...

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Q: CLASSY ME Given examples of chemical changes, compltete the table by giving the evidence/s and the t...

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Q: For each pair of covalently bonded atoms, choose the one expected to have the higher bond energy. (A...

A:  A will have the higher bond energy    Bond energy is the energy needed to break a chemical bond. Bo...

Q: The synthesis of methanol from carbon monoxide and hydrogen gas is described by the following chemic...

A: A numerical problem based on equilibrium concept, which is to be accomplished.

Q: Rank the acidity of the following compounds by explaining the factors that influence it:HNO3, HPO3, ...

A: The strength of an acid depends on two factors  1) oxidation state of Central atom. Higher the oxida...

Q: INSTRUCTIONS: Answer the following questions, and solve the tollowing problems to evaluate your prog...

A: (1) Given that -  Volume of Solution of glucose = 100 mL  % Glucose = 5.000%  Molar mass of glucose ...

Q: For the following endothermic reaction at equilibrium: 2 So3 (9) 2 So2(g) + O2(9) Decide if each of ...

A: As per the rules only the first three subparts can be answered. Equilibrium constant K = [Products] ...

Q: Solve the following problems. Please show your solutions. 1. Sodium carbonate (Na,COs) is commonly u...

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Q: 2. Explosives are effective if they produce a large number of gaseous molecules as products. Nitrogl...

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Q: Question No. 9 The chemical formula for bauxite is: Al2O3 Al2O3.2H2O O Naz ALF6 O Al2Cle

A: Bauxite is an ore of aluminium.

Q: Draw an example of a zinc-copper galvanic cell showing how its work

A: The detailed solutionof your question given below- The example of zinc copper galvanic cell work as ...

Q: The rate constant of a reaction increases by a factor of 4 when the temperature is increased from 20...

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Q: Calculate the oh of a solution that is prepared by adding 45.0 m, of 0.050M HI to 25.0 ml of 0.050M ...

A: Given: The volume of HI = 45 mL. The volume of Ba(OH)2  25 mL. The concentration of HI = 0.05 M. The...

Q: Calculate the Z* acting upon the first electron to be ionized from Al, Al1+ , Al2+ , and Al3+ , resp...

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Q: ro wator is 62 m3 and the mass is 62000 ka, its der

A: Given,  Volume of pure water (V) = 62 m3. Mass of water (m) = 62000 kg.  Density (p) = ? 

Q: Calculate the number of moles in 2,792.4 mg of Ca(NO3). Calculate the number of molecules. Calculate...

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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.