Calcium carbonate decomposes on heating as shown in the chemical equation. When 50 g of calcium carbonate are decomposed, 7g of calcium oxide are formed. What is the percentage yield?

Q: Aqueous hydrochloric acid (HCI) reacts with solid sodium hydroxide (N2OH) to produce aqueous sodium ...

A: Mass of HCl = 26.2 g  Mass of NaOH = 17.6 g  Mass of water = 2.70 g  % yield = ? 

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Q: A 0.4574 g sample containing only NaCN and KCN requires 41.65 ml of 0.1056 M AgNO3 for titration. Ca...

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Q: A sample of mixture of CaCO3(s) and NaHCO3(s) was heated and the compound decomposed: CaCO3(s) = CaO...

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Q: the VT of a column is 30 cm3 , and VS is 20 cm3 , and Vo is 7 mL, find Vi (in mL).

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Q: I did a TLC analysis of benzophenone and triphenylmethanol. I had expected the triphenylmethanol to ...

A: A question based on analytical separations that is to be accomplished.

Q: Methane (CH) gas and oxygen gas react to form carbon dioxide (CO,) gas and water (H,O) vapor. Suppos...

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Q: 3. Assign the absolute configuration to the stereocenters (marked A through G) below. Note: “extract...

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Q: chemical equation

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Q: A compound is composed of element X and hydrogen. Analysis shows the compound to be 80% X by mass, w...

A: Given data :- A compound is composed of element X and hydrogen. Analysis shows the compound to be 80...

Q: limiting reagent

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Q: 5-The hydrolysis of a series of ethyl benzoates by hydroxide ion in 85% aqueous ethanol has been inv...

A: Introduction :  According the Hammond's postulate it allows us to gain some gain some insight on the...

Q: 27. in dehydration synthesis reactions, where do the atoms that make up a molecule of water come fro...

A: 27. in dehydration synthesis reactions, where do the atoms that make up a molecule of water come fro...

Q: identify each of the ourved arrows in the mechanism below as being one of the four mechanistic patte...

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Q: This is glyceraldehyde. H OH он но. HO. How many chiral centers does it have? Write the numeral only...

A: Stereochemistry is branch of chemistry in which we deal with spatial arrangement of atoms in molecul...

Q: QUESTION 23 What would be the shape of the resonance signal in the H NMR spectrum for the CH 2 hydro...

A: Complete solution is given below in next step

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A: A question based on tools in analytical chemistry that is to be accomplished.

Q: . An aldo hexose will have stereoisomers. Explain in 2-3 sentences why you chose this answer. А. 8 В...

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Q: A molecule with the formula AB3 could have different shapes. Which shapes could AB3 form? (Choose al...

A: Molecular geometry is the three-dimensional arrangement of the atoms in a molecule. 

Q: 13 Balance these net ionic equations. (a) Ag+(aq) + Br¯(aq) → AgBr(s) (b) Cd2+(aq) + S?-(aq) → CdS(s...

A: Balanced chemical equation is that in which number of atoms on left hand side and right hand side of...

Q: Compound Name / Classical Name Compound Acid Name / Stock Name Ba(ОН)2 RbF PbCl, H;PO4 HIO, Zn;(PO4)...

A: Here some compounds are given.We have to write down their name.

Q: Visualize a substance with the following points on the phase diagram: a triple point at 0.05 atm and...

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Q: 13. A hydrogen bond becomes an acceptor when: a. An atom of hydrogen is attached to a relatively ele...

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Q: 100 ° C,   Br2(g) + Cl2(g) ⇌ 2BrCl(g)   the equilibrium concentrations of the reactants were found ...

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Q: Compounds A, B, and C are isomers with the formula C5H11Br. Their broadband proton-decoupled 13C NMR...

A: Isomers are compounds that have the same molecular formula but different arrangements of atoms in sp...

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used t...

A: CALCULATION OF SPECIFIC HEAT CAPACITY

Q: Is it necessary to bleach the hair prior to application of a hair dye? Explain

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Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used t...

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Q: define and explain the ideal gas law and avogadro's law in its simplest form

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Q: answer 3

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Q: A solution composed of 50% ethanol (EtOH), 10% methanol (MEOH), and the rest are (H2O) is fed in wei...

A: Considering no reaction ; Flowrate IN = Flowrate OUT .   Therefore , 100kg/hr IN = 60kg/hr + x kg/hr...

Q: Calculate the degree of unsaturation. Assign the relevant peaks in the IR spectrum. Assign the peaks...

A: The double bond equivalence (DBE) can be calculated by using the formula, DBE = x + 1 - y / 2   wher...

Q: What makes an ammonium salt very important as an organic compound?

A: What makes an ammonium salt very important as an organic compound?

Q: Provide the product expected from each of the reactions below. If you believe that two products will...

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Q: Experiment 5-Data Anolysis for Accuracy and Precision - A second group of students performed the exp...

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Q: A 2.50 g sample of powdered zinc is added to 100.0 mL of a 2.00 M aqueous solution of hydrobromic ac...

A: Given:- •2.50g of sample of zinc powder • 100ml of 2M HBr solution. •Total heat capacity of calorime...

Q: Without being heated, I could dissolve more sugar into sweet tea that is

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Q: assuming the volume of a pink freezer pop solution is 30.0mL, and the concentration for red pop is 3...

A: The volume of a pink freezer pop solution is = 30.0 mL The concentration for red pop is = 3.03 g/L T...

Q: N2 Valence e's: Bonded Atoms: Lone Pairs: Steric Number: Shape: Polarity:

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Q: How many alkenes or cycloalkenes with the general formula C9H16 can you treat with HCl to obtain 1-c...

A: The given  reaction  is an electrophilic  addition  reaction  of an alkene pi bond. The HCl get adde...

Q: Perform the following problems related to stoichiometry equation. A sample of saturated NaNO3 (aq)...

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Q: A certain laboratory procedure requires 0.025 M H2SO4. How many milliliters of 1.10 M H2SO4 should b...

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Q: Describe why the inside wall of the flask is rinsed with deionized water during accurate titration. ...

A: During accurate titration we need to rinse the inside wall of the flask with de-ionized water becaus...

Q: If 100 L of a gas mixture over a metropolitan area contains 0.006 Oxygen L, how many ppm of CO is pr...

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Q: Problem 8 C8H14 18- 40 20 4000 3500 3000 25b0 20be 1500 1000 3H 2H 2H 2841.51- 484.16 - 1278.97 1072...

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Q: At 300 K consider a colloidal solution, M = 150 kg/mol, in a gravity field. If the concentration of ...

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Q: AgCl NaNO, NaCl O AGNO, Calculate the mass of AgCl produced in the given reaction. mass of AgCl: If ...

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Q: 1. In a study of the reaction of pyridine (C,H;N) with methyl iodide (CH3I) in a ben- zene solution,...

A: Let us suppose a reaction-- C5H5N + CH3I ----> Product  Then, Rate law can be written as, Rate = ...

Q: The partial pressure of oxygen is 0.20 atm at sea level at 25°C. Calculate its partial pressure at a...

A: Solution is shown below.

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".