The mass of water obtained in a combustion analysis of a 1.000 g sample of an organic compound containing carbon, hydrogen, and oxygen is 0.6662 g. What is the mass percent of hydrogen in the compound?

Q: Consider the following reaction: 2HBr(9)→ H₂(g) + Brz (9) Part A Express the general rate of the…

A: the rate of the reaction is defined as the change in concentration of the reactants or products in…

Q: Use your diagram to find the equilibrium pH of the solution. Identify your solution point on the…

A: ammonium solution is a weak base. So, it dissociates in water as given in the above reaction.…

Q: Name the following pairs of compounds according to recommendation of the IUPAC, and state if they…

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Q: How many molecules are in 30.6 moles of CC14?

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Q: What is true about the relationship of Kp and Kc for the reaction: 2CH4(g) + 3O2(g) 2CO(g) +…

A: The reaction is given and we have to tell the relationship between kP and kC by using some formula…

Q: Identify the reagents necessary to achieve each of the following transformations (it may be…

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Q: When a solution forms, the presence of the non-volatile solute reduces the rate of condensation of…

A: the presence of the non-volatile solute reduces the rate of condensation of the solvent!!

Q: Methyl Orange and phenolpthalein are common chemical indicators often used in titrations. What is…

A: Asking is role of chemical indicator?

Q: Calculate the number of moles of S in 10.00g of Fe2(SO4)3.

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Q: The preparations of two aqueous solutions are described in the table below. For each solution, write…

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Q: Consider the following reaction CH4 + 4C12 →→ CC14 +4HCI What mass of of 9.00 grams chlorine? Ccly…

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Q: Limestone consists mainly of the mineral calcite, CaCO3 (FM 100.09 g/mol). The carbonate content of…

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

Q: Copper(II) sulfate forms several hydrates with the general formula CuSO4·xH2O, where x is an…

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Q: budesonide and 0.018 mg formoterol d. 0.32 mg 38. Each blister on the foil strip of an ADVAIR DISKUS…

A: To calculate how many milligrams of lactose monohydrate is the person inhaling each day.

Q: 26. The element copper has naturally occurring isotopes with mass numbers of 63 and 65. The relative…

A: Average atomic mass: The average atomic mass of an element is the sum of the masses of its isotopes,…

Q: 6-which of the following is the IUP AC name of the tert-butyl alcohol? 2-methyl-1-propanol A) B)…

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Q: 4  A sample of solid Ca(OH)2 was stirred in water at a certain temperature until the solution…

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Q: bond angle? tetrahedral trigonal planar linear octahedral

A: Which one of the following  is correct answer

Q: The average is 1.15125 and the standard deviation is 0.059626815635728 If the slope of the…

A: 1) Concentration of detection limit (D.L)/Limit of detection (LOD): It is the smallest concentration…

Q: The activation energy for a reaction is determined to be 389.9 kJ. The rate constant at 20.5ºC is…

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Q: Identify the reagents necessary for all three methods. ? OH ajay O CH3CH₂ONa ? ? 1) NaOH; 2)…

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Q: 30. Arrange the following elements in order of increasing ionization energy. a. Na, Al, S 31. Which…

A: On moving from left to right across the period the atomic radius decreases it is because in period…

Q: Plz give both answer 24.Given the following equation: 2 KClO3 → 2 KCl + 3 O2 How many grams of O2…

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Q: balance in basic solution NO3-+ Zn(s) ----> Zn2+ + NO

A: The unbalanced chemical reaction given is NO3– + Zn (s) → Zn2+ + NO

Q: One of the many remarkable enzymes in the human body is carbonic anhydrase, which catalyzes the…

A: From the given description, we need to identify the enzyme, substrate and turnover number.

Q: Draw a lewis structure for this reaction.

A: To draw the Lewis structure for the given reactions.    A Lewis structure is a diagrammatic…

Q: 14. How many moles are there in 45 g of Cl₂? 15. Change 34 g of lithium to moles. 16. What is the…

A: Mole is the SI unit which is used to measure the amount of substance.  No. of moles can be…

Q: How many mL of a 0.216 M aqueous solution of manganese(II) bromide, MnBr2, must be taken to obtain…

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Q: molar mass to solve the following problems: 21. Calculate the moles of 35.7 milligrams of…

A: Given that mass of compound = 35.7 milligrams.

Q: Repeat your calculations using the new, adjusted reduction potentials. (with New A13+/Al being the…

A: E°cell = E°cathode - E°anode  Cathode =Reduction takes place  Anode = Oxidation takes place

Q: The rate constant k for a certain reaction is measured at two different temperatures: temperature…

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Q: Why is it important to know the type of solid solution formed?

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Q: What are the two major steps of photosynthesis?

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Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

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Q: One useful equation is the change of enthalpy of compressible liquid with constant specific heat…

A: Answer: Enthalpy of a system is actually its total energy content and it is always equal to the sum…

Q: An analytical chemist is titrating 198.6 mL of a 0.7200M solution of formic acid (H₂CO₂) with a…

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Q: Calculate the number of Fe atoms in 10.00g of Fe2(SO4)3.

A: The number of moles of any substance is defined as the ratio of given mass to that of molar mass of…

Q: Na₂ LU 1069/m01 2. If you had to make a 0.250M solution of CaCl2 from 100mL of solution, determine…

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Q: Calculate the molar mass of each of the following compounds:  12. Al2(SO3)3

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Q: Calculate the pH of 1.00 L of the buffer Part 1 of 3 Note: Reference the pK of acids at 25 °C table…

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Q: In the phase diagram of carbon dioxide, the slope of the solid-liquid boundary is positive, thus the…

A: Phase diagram of CO2 is given as:-

Q: Consider the titration of 25.0 mL of 0.100 M HA with 0.100 M NaOH, where HA is a weak acid that has…

A: HA is a weak monoprotic acid with Ka = 2.3*10-6  or pKa = -log(Ka) = - log(2.3*10-6) = 5.6383  The…

Q: Maxwell presented by Macmillan Learning (a) Given the reactions and overall heats of combustion of…

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Q: Predict the products (if any) that will be formed by the reaction below. If no reaction occurs,…

A: Metal reacts with acids form salt and hydrogen gas. A metal can displace another metal from its salt…

Q: In the following reaction: Fe + CuSO4 -> FeSO4 + Cu, iron is oxidized. A True B False What is the…

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Q: 27. Calculate the atomic mass of rubidium. The two isotopes of rubidium have atomic masses and…

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Q: Identify the reagents you would use to perform the following transformation: CN The transformation…

A: This is an example of nucleophilic substition reaction in which NH3 attacks to acyl chloride to form…

Q: Endocytosis and exocytosis are both forms of [ACTIVE / PASSIVE ] transport that [ DO / DO NOT ]…

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Q: Which of the following molecules has the greatest bond energy? O a. H 2 Ob. HF O c. Cl 2 O d.CO O e.…

A: In first question ,to find number of lone pairs of electrons around central atom we must know  the…

Q: (a) Derive linear density expressions for BCC [110] and [111] directions in terms of the atomic…

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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.