Answer the following questions: a) How much As (74.9216 g/mol) is in the sample? b) Calculate % w/w As₂O₃ (197.841 g/mol) of the sample

Q: determine the composition of  the following compounds: MgCl2,SiO2,(NH4)2S?

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Q: Use the following theoretical equation A2B3 + 3 C2D --> A2D3 + 3 C2B Calculate the number of…

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Q: 27. Answer the following: a) Determine the charge of the cation in the ionic compound Sn3(PO4)2.…

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Q: O What is the mass of 0.6 mole of CO2 (in g)? A) 31 B) 7 C) 26 D) 18 E) 37

A: Given: Moles of CO2 = 0.6 mol Standard data: The molar mass of CO2 = 44 g/mol

Q: E 0.379 mol of Cr

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Q: What is the name for V(OH),?

A: Name for V(OH)4 = ?

Q: How many hydrogen atoms are present in 552.6 g of sucrose (C12H22O11)? (Molar mass of carbon =…

A: The number of moles, often denoted as "n," is a fundamental concept in chemistry. It represents a…

Q: A) What is the formula of magnesium melonite dihydrate?  B) What is the mass % of melon in copper…

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Q: 59. Determine the molecular weight of Ca(NO,)2

A: Solution- Formula =Ca(NO3)2. Molar mass Ca  =  40.00g/mol. Molar mass N  = 14.00g/mol. Molar mass O…

Q: 3- calculate the number of (O) atom in 1.5 g of glucose (C6H1206).

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: How many hydrogen atoms are present in 942.6 g of sucrose (C12H22O11)? (Molar mass of carbon =…

A: We have to calculate the number of H atoms in given mass of sucrose.

Q: Below are some of the interesting (and in some cases toxic) compounds that people will encounter in…

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Q: Calculate the% of boron in borax (Na2B4O7.10H2O)

A: ANSWER

Q: Name each compound and calculate its formula mass.(a) Al2(SO4)3(b) P2O3(c) HClO(aq)(d) Cr(C2H3O2)3

A: Formula mass is termed as the summation of all atomic weights of the atoms in its empirical formula.…

Q: Chemistry

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Q: What mass of methane is required to produce 1.130 kg of carbon dioxide during combustion? (Assume…

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Q: What would you need to do to make C14H21O14 an empirical formula?

A: To find emperical formula.

Q: Calculate the number of atoms of glucose in 2.116 x 10-3 grams of glucose, C6H12O6. Hint: molar…

A: Given that, Grams of glucose in 2.116 x 10-3 g The molar mass of glucose (C6H12O6) as follows --- =…

Q: 32. How many grams of Li;N can be formed from 1.75 moles of Li? Assume an excess of nitrogen. 6…

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

Q: Identify the principle component(s) of the essential oil Ground Rosemary. Determine the chemical and…

A: Ground Rosemary essential oil is an essential oil which is extracted from rosemary.  The main…

Q: 6Li + N2 --> 2Li3N If 50 g Li reacts with 40 g N2, what is the maximum mass of lithium nitride…

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Q: 1. Determine the molar mass of (a) potassium hexachloroiridate(IV), K2lrCls and (b) trifluorosilane,…

A: Determine the molar mass of the given complex--

Q: How many grams of manganese(II) hydroxide contain 2.80 grams of Mn2+?

A: The formula for manganese hydroxide is Mn(OH)2  The molar mass of Mn = 54.93g/mol The molar mass of…

Q: What mass of Ba(NO3)2 (261.34 g/mol) is needed to convert 2.33 g of NaIO3 (197.89 g/mol) to…

A: Barium nitrate react with sodium iodate and produced Ba(IO3)2

Q: If 0.35 moles of KIO3 are contained in a beaker with excess I^- and excess H^+, how many moles of…

A: Interpretation - To determine the mole of S2O32- are needed to react with all of the I2 formed when…

Q: Determine the molecular weight of Ca(NO3),

A: The given molecule is Ca(NO3)2.   The molecular weight of each atom in the given molecule is, Ca =…

Q: Determine the number of atoms of O in 10.0 g of C₂H₄O₂.

A: Given that,mass of C2H4O2 = 10 gmolar mass of C2H4O2 = 60g/mol number of moles of C2H4O2 = 10 g / 60…

Q: The total number of atoms in Ca(OH)2

A: Ca(OH)2 is a base and its name is Calcium hydroxide. Atom is the smallest entity of any element and…

Q: Calculate the mass percent of oxygen (O) in dinitrogen oxide (N2O) to the nearest 0.01%. Number

A: Molar mass of Nitrogen =14 g/mol  Molar mass of Oxygen = 16 g/mol  Molar mass of N2O = (14*2)+16…

Q: What are the mass percent of elements in glucose, C6H1206?

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Q: 34. How many grams of water, H2O, can be produced by the reaction of 8 O2, and 8 grams of hydrogen,…

A: Here, we have to find the mass of water that can be produced by the reaction of 8 grams of oxygen…

Q: 3 g of a hydrated metal chromate is heated only 1.479 g of anhydrous metal chromate remains.  What…

A: Some salts are found in their hydrated form. In hydrated form, water is coordinated with the salts.…

Q: What is the molecular weight of Mg (PO4)2

A: Molecular weight determination:By adding the mass number of each atoms present in the given formula…

Q: A 3.000g sample of lead (207.2 g/mol) was completely reacted with excess oxygen (16 g/mol) in a…

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Q: A recently created chromium-boron compound is a component of Ironman’s armor. It was created by…

A: Given : Mass of Cr reacted = 4.372 g And mass of compound formed = 4.917 g Assuming the empirical…

Q: 3) A 9.500 g sample of CaCl2•xH2O after heating gives an anhydrous residue of 6.348 g. What is the…

A: given, Mass of CaCl2.xH2O = 9.500 g Mass of anhydrous residue = 6.348 g  Molar mass of CaCl2  =…

Q: 1) Calculate the number of H atoms in 0.350 mol of glucose, C6H12O6 2) What is the mass in grams of…

A: Given data :  1) moles of glucose = 0.350 mol  2) mol  of glucose = 1.000 mol  molar mass of glucose…

Q: 1) The hydrated salt Al(NO3)3 nH20 is 7.194% by mass of aluminum. Calculate the value of n.

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Q: In a chemical reaction, using 1 mol AgBr can get 1 mol NHĄB . If there is 4.15 g AgBr , we can get…

A: Given : In a reaction, 1 mole of AgBr is capable of producing 1 mole of NH4Br. And mass of AgBr…

Q: What is Angas for the following equation? 4 NH3 (g) + 3 O2 (g)=2 N2 (g) + 6 H,O (g) O 2 O 1 O 3 O -1…

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Q: 13. a. A compound consisting of carbon, hydrogen and chlorine is analyzed. It is found to consist of…

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Q: A 5.0 g sample of NH4CH3COO . xH2O is dried yielding 2.58 g of anhydrous salt.   Determine the…

A: Given: The mass of the hydrate (NH4CH3COO . xH2O) = 5.0 g The mass of the anhydrous salt after…

Q: What basic element is needed to make TH?

A: TH (thyroid hormone) , is a hormone produced by the thyroid gland that plays a critical role in…

Q: 100.46 g/mol 3. ) 182.9 g/mol Cl,O79) 18.02 g/mol + H¿O 4(aq) a. An initial mass of 5.00 grams of…

A:

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.