How could you calculate the Avogadro’s number [NA] for an organic compound if you know the following information: a. The volume of the molecule was calculated to be 0.664 x 10-21 cm3. b. The molar mass of the compound is 320.0 g/mole and the density is 0.8 g/ml.

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

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Q: A 7.591-g gaseous mixture contains methane (CH₄) and butane (C₄H₁₀). Complete combustion to form…

A: Step-1CH416g + 2O2 → CO2 + 2H2OC4H1058g + 132 O2 → 4CO2 + 5H2O

Q: fragrance manufacturers to provide a rich and elegant musky essence to many perfumes. Cosmone has…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: Consider the formation of lithium nitride from lithium and nitrogen: 6 Li + N2 → 2 Li3N How much Li…

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Q: For items 1 and 2: 4NH3 + 302 6H2O + 2N2 1. What is the mole ratio of NH3 to H2O? 2. What is the…

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Q: 2. Calculate the mass of hydrogen formed when 25 grams of aluminum reacts with excess hydrochloric…

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Q: Aluminum carbide (Al4C3) reacts with water to produce gaseous methane (CH4). Calculate the mass of…

A: Record the given data, Weight of aluminum carbide = 63.2 g The balanced equation for the reaction…

Q: 3. nydrate! A student was given a sample of hydrated Na,CrO4 (molar mass of anhydrous Na2CrO4: 162.0…

A: Mass of hydrated sample = 2.58 g Mass of anhydrous sample = 1.77 g Molar mass of Na2CrO4 = 162.0…

Q: 26. a. Calculate the the molecular weight of Na2SO4 Atom Number of atoms Atomic Mass Total mass…

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Q: Write the chemical formula for each compound, and then calculate the amount in moles in each sample.…

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Q: A compound isolated from the rind of lemons is found to be 88.14% carbon and 11.86% hydrogen by…

A: As this question has multiple questions, we are solving first three for you. If you want remaining…

Q: What mass, in grams, of NO2 is needed to form 132.9 g of NO? A 3NO2(g) + H20() → 2HNO3(aq) + NO(g) x…

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Q: Aspartame is an artificial sweetener that is160 times sweeter than sucrose(table sugar) when…

A: The answer to the following question can be given as -

Q: un o 8u described in this laboratory. After heating, the sample is found to weigh 2.245 grams. How…

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Q: What is the maximum mass of B4C that can be formed from 2.00 moles of boron(III) oxide?

A: Boron(III) oxide is B2O3 B4C can be prepared by the reaction B2O3 with carbon. The chemical reaction…

Q: 4. One mole is equivalent to a. 3.75 g Hydrogen c. 16 g Oxygen b. 14 g Carbon d. 190 g Gold 5. What…

A: 4) Calculate the number of moles of each option-

Q: For items 3 and 4: SIO2 + 4HF SİF4 + 2H2O 3. What is the mole ratio of HF to SIF4? 4. What is the…

A: Number of moles is calculated by dividing given mass with molecular mass.

Q: What number do you get if youdivide the mass of 1 mol of waterby the mass of 1 molecule of water?

A: 1 mole of atoms refer to the total number of protons multiplied by the atomic mass unit and avogadro…

Q: Suppose that a device is using a 10.0-mg sample of silicon that is doped with 1 x 10-5% (by mass)…

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Q: Aspartame is an artificial sweetener that is 160 times sweeter than sucrose (table sugar) when…

A: NOTE : Since you have posted multiple sub-parts,we'll solve only first three sub-parts for you. To…

Q: An organic compound consists of carbon, hydrogen and nitrogen only. Complete combustion of a 150. mg…

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Q: Given 6Li + N2 0 2 Lİ3N, Determine the number of moles of lithium required to make 46.4 g of lithium…

A: 6Li + N2 = 2Li3N  Atomic mass of Li is 6.94 g. Molar mass of Li3N is [ (3×6.94)+14] = 34.83 g. 2…

Q: What mass, in grams, of NO2 is needed to form 140.4 g of NO? Assume excess water.    3NO2(g) +…

A: The reaction given is  3 NO2(g) + H2O(l)  →  2 HNO3(aq) + NO(g) Given : mass of NO forming = 140.4 g…

Q: what mass of cu(io3)2 can be formed from 0.400g of cuso4.5h2o

A: We can determine mass of Cu(IO3)2 formed by considering the balanced equation : CuSO4. 5H2O + 2 HIO3…

Q: How many moles of H20 can be formed from 6.62 x 10 atoms of NH3 from the following equation? 4 NH,…

A: One mole of any chemical substance contains Avogadro’s number or Avogadro’s constant of atoms in it.…

Q: 17. Given the reaction Ss(g) + 802 8SO2(g), the number of moles of sulfur required to form one mole…

A: In the given reaction, one mole of S reacts with eight moles of oxygen to form eight moles of sulfur…

Q: Consider the following hypothetical chemical equation 2A + 3B --> A2B3 Calculate the mass in grams…

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Q: 12KOH + 6I2 -> 10KI + 2KIO3 + 6H2O   calculate the number of moles of KOH to produce potassium…

A: Given 12KOH + 6I2 -> 10KI + 2KIO3 + 6H2O calculate the number of moles of KOH to produce…

Q: Sodium hydroxide reacts with carbon dioxide as follows: 2NaOH(s)+CO2(g)→Na2CO3(s)+H2O(l)   How…

A: Given, Chemical Reaction:  2NaOH(s)+CO2(g)→Na2CO3(s)+H2O(l) Moles of NaOH = 2.30 moles  NaOH is…

Q: Phosphorus can be prepared from calcium phosphate by the following reaction: 2Caz (PO4)2 (s) + 6SIO2…

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Q: Calculate the molar mass (g/mol) of the compound. NaNO2

A: Calculate molar mass of NaNO2 ?

Q: CHale + 5 0 e) How many moles of 0, are required to produce 17.8 moles of CO,? →3 COl + 4 H,0 'a(g)…

A: For 3 moles CO2       ------  5 moles O2         17.8 moles CO2 -------  ?                      =…

Q: How many molecules of NO2 are present under these conditions at 20 °C in a room that measures 15 *…

A: Given: Temperature=20°C=293.15 K Dimension=15 ft×14 ft×8 ft

Q: Suppose that you are required to calculate the number of moles for E Ar atoms. (E is a number)…

A: Detail mathematical calculation is shown below

Q: If 21.6g of carbon dioxide is produced in the reaction below, what mass of water is also produced?…

A: Firstly find the moles of CO2 , then according to mol ratio the moles of water can be found out.

Q: If 5.50 mol of calcium carbide (CaC) reacts with an excess of water, how many moles of…

A: The reaction occurs as follows: CaC2(s) +2H2O --> Ca(OH)2(aq) +C2H2(g)  1 mol     2 mol        1…

Q: A 500 megawatt electrical power plant typically burned 1,430,000 tonne of coal in a year. (a)…

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Q: Provided you are given a balanced chemical equation   Where do you find the numbers we are to use…

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Q: Air has an approximate composition by mass of 76.7% N 2 and 23.2% O 2 . How many Ib-moles of air are…

A: Given the composition of air is 76.7% N2 and 23.2% O2.  Fraction of N2 = 76.7/100 = 0.767 Fraction…

Q: What is the sum of all coefficients when the following equation is balanced, using the smallest…

A: Given the unbalanced equation: SiCl4 + H2O → H4SiO4 + HCl We have to find the sum of all…

Q: 3. Answer the following questions based on the combustion of hexane: a. Write and balance the…

A: Combustion of hexane will produce CO2 and H2O

Q: 12KOH + 6I2 -> 10KI + 2KIO3 + 6H2O calculate the number of moles of iodine (elemental) to produce…

A: We have to find out the number of Mole of I2 to formed 10 mole of KI

Q: Calculate the moles of anhydrous (dry) KAl(SO4)2 that were present in the sample and the ratio of…

A: Introduction :  Empirical formula is the formula of a compound from which one can find the ratio of…

Q: Determine the maximum mass of lithium nitride that could be formed from a reaction involving 5.00 g…

A: Lithium ⇒LiNitrogen ⇒N2Lithium Nitride ⇒Li3N

Q: What mass, in grams, of NO2 is needed to form 182.9 g of NO? Assume excess water.  3NO2(g) + H2O(l)…

A: Mass of NO = 182.9 g Mass of NO2 = ? Molar Mass of NO = 30.01 g mol-1 Molar Mass of NO2 = 46.005 g…

Q: Calculate the number of moles of aluminum oxide in 6.83g Al2O3

A: Stoichiometry is mainly based on the calculation of moles and volumes. These two values are used to…

Q: A sample containing 58.51 g manganese (Mn) is treated with an excess of sulfuric acid (H2SO4) to…

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Q: When a sample of cyclohexene is burned in oxygen, 4.822 g of CO2 and 1.650 g of H2O are obtained.…

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Q: If mass of SO2 is 24g , calculate: 1.1. the molar mass of SO2 The number of mole of SO2 The number…

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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.