a. What isthe percent by mass of water in iron (II) sulfate heptahydrate, FeSO4 • 7H2O  (or what percent of the molar mass of FeSO4 •7H2O is due to the waters of crystallization)?     b. What mass due to waters of crystallization is present in a 3.38‐ g sample of FeSO 4 •7H2 O?

Q: (a) If an automobile travels 225 mi with a gas mileage of 20.5mi/gal, how many kilograms of CO2 are…

A: The combustion equation for octane can be written as: Distance = 225 mi Mileage = 20.5 mi / gallon…

Q: 3.150 The compound 2,3-dimercaptopropanol(HSCH2CHSHCH2OH), commonly known as BritishAnti-Lewisite…

A: Given: Molecular formula of 2,3-dimercaptopropanol or BAL = HSCH2CHSHCH2OH = C3H8OS2 Molecular mass…

Q: Barium metel was quantitatively precipitaded from 1.52g sample of BaCl2+2H2O. The mass of the barium…

A: Mass percentage = (mass of solute / mass of solution) x 100%

Q: 3.102 Consider the reaction 2A + B C (a) In the diagram here that represents the reaction,…

A: From the balanced equation of reaction given, 2 molecules of A requires 1 molecule of B to form 1…

Q: by adding water to calcium carbide (CaC2). CaC2(s) + 2H,O(1) → C2H2(g) + Ca(OH),(aq) How many grams…

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Q: What is the mass percentage of C in codeine, C₁₈H₂₁NO₃? Provide an answer to two decimal places.

A:

Q: Part B. 4. Volume of a Drop of Water Number of drops (10) 10 Mass of flask + watchgiass + 10 drops…

A: A numerical problem based on dimensional analysis, which is to be accomplished.

Q: 2.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given : Mass of compound combusted = 2.00 g Mass of CO2 produced = 3.30 g Mass of H2O produced =…

Q: A student obtains a mixture of the chlorides of two unknown metals, X and Z. The percent by mass of…

A: Given: Mixture of metal X and Z. And mass percent of X and Z in the mixture.

Q: The green color of leaves is due to thepresence of chlorophyll, C 55 H 72 O 5 N 4 Mg. A fresh…

A: Chlorophyll is a green pigment that absorbs sunlight and helps plants absorbs energy and utilize…

Q: d If nickel(II) formate is heated to 300 °C in the absence of air for 30 minutes, the salt…

A: Nickel formate decomposed to form nickel powder. Each mole nickel formate produces 1 mol of nickel.…

Q: 4. An alloy of solder is tin and lead. Calculate the number of moles of each metal that are pres-…

A: Given that an alloy of solder is Tin(Sn) and Lead(Pb) .  Percentage amount of Sn present in alloy =…

Q: Prevacid is used to treat gastroesophageal reflux disease (GERD).Thechemical formula of Prevacid is…

A: The question is based on mole concept. we have to calculate the mass of fluorine atoms of carbon.…

Q: Liquid n-pentane weighing 108 grams is burned with 570 grams of O2. a) Which is the limiting…

A: According to the law of mass conservation, "Mass can neither be created, nor be destroyed, but  it…

Q: The hydrated salt, MY3·xH2O, was heated strongly in a crucible to remove all the water molecules of…

A: Given: Mass of empty crucible and cover  = 29.73 g Mass of crucible, cover, and hydrated salt =…

Q: Consider the following compound: Sr3(PO4)2 *4H2O -Calculate the mass, in grams, of Sr present in…

A:

Q: 1. The processing plant you work for needs to produce 500 g of Li;Ns) from Lis) and N(e)- Your…

A: Since, you have posted two questions we will provide you the solution of first question. Please,…

Q: Mass of crucible + lid 18.30 08 Y 18.8979g 18.62009 |8.८1१। १ From the data above, calculate the…

A: We are given experimental data for the heating of hydrated MgSO4 salt. All calculations for #1 are…

Q: 7. C,H16 + 02 -- CO2 + H20 8. H2SICI, + H20 --→ H&S¡404 + HCI

A: Balanced the chemical equation--

Q: Please answer questions 4a, 4b, and 4c. The questions are provided in the attached image. Thank you.

A: (a) The equation of dehydration of the given hydrated salt is given below.

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A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: 11. In the equation:  C6H15N4O6 + N2O  C5H11N4O6 + CH4N2O   A. Which compounds are the reactants?…

A:

Q: Consider the balanced chemical reaction below. How many grams of CaSo, can be produced from 1.00 kg…

A:

Q: (1 point) Consider the chemical reaction a P,O10 + 6CAF2 → cPF; + dCaz(PO4)2, where a, b, c, and d…

A: Gggh

Q: 4. A mixture containing only BaO (FW 153.33) and CaO (FW 56.08) weighs 2.00g. The oxides are…

A:

Q: A solution of H2SO4 contains 65% w/w of the acid, and has a density of 1.55 g/mL. How many molecules…

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Q: Prepared 8 M of HCL in 500 ml, that density is 1.19 g/cm3 and percentage * ?% w/w is 37 The volume…

A: Option C is correct answer. The volume needed is327.06 ml.

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Q: I. Ferrous sulfate, FeSO. is a compound found in medicines that are used to treat iron deficiency in…

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Q: A pharmacist prepares an antiulcer medicine by mixing 286 g Na2CO3 with water, adding 150 g glycine…

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Q: A three-step process for producing molten iron metal from Fe203 is: 1. 3FE203 + CO –→ 2FE304 + CO2…

A:

Q: When a mixture of silver metal and sulfur is heated,silver sulfide is formed: 16 Ag(s) + S8(s)…

A: The answer to the following question is-

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Q: (a) One molecule of the antibiotic penicillin G has a massof 5.342 x 10-21 g. What is the molar mass…

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Q: 1.- Calculate-the mass ff Ba3(PO4)2 produced from the reaction of 0.85 g NazPO4:12H20 with excess…

A: The relationship between moles, mass and molar mass is: Moles = MassMolar mass

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Q: When a mixture of silver metal and sulfur is heated, silver sulfide is formed: 16Ag(s) + S8(s)…

A:

Q: Iodine is prepared both in the laboratory and commercially by adding Cl2(g) to an aqueous solution…

A: Given, 82.1 g of iodine, I2

Q: odine is prepared both in the laboratory and commercially by adding Cl2(g)Cl2(g) to an aqueous…

A: Given, Iodine is prepared both in the laboratory and commercially by adding Cl2(g) to an aqueous…

Q: ? + {H → 15 ← Oci 8 GT 8 15N+?

A:

Q: A mixture containing only BaO (FW 153.33) and CaO (FW 56.08) weighs 2.00g. The oxides are converted…

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Q: Ba (NOs), + Hz Soy -> How of Ba(NOs), > Ba Sou + 2HNO3 are requied to mang grams precip. Fhe sulfate…

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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.