2 SO2 + O2 -> 2 SO3 If you have 12.5 grams SO2 and 2.50 grams O2, then calculate the nunber of moles of SO2 using the sample and calculate the number of O2 in the sample. Use dimensional analysis.

Q: FeCl,(aq) + 3K,C20, · H20(aq) → K,Fe(C,0,)3 · 3H20(s) + 3KCI(aq) (Eqn. 1) 3K*(aq) + Fe3+(aq) +…

A: A numerical problem based on mass percent, which is to be accomplished.

Q: Never heat the mixture until the distillation flask is dry as this may cause an explosion. O True O…

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Q: 1.50 g of CaCl2 is sissolved in water and combined with an excess of NaCO3 CaCl2 + Na2CO3 ---> CaCO3…

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Q: Indicate whether each of the following statements is true or false. Explain your reasoning for each…

A: The given question can be answered on the basis of the knowledge of the basic concepts regarding the…

Q: What is the coefficient in front of the O2 when the equation below is balanced (using only whole…

A: Balanced equation :-  A chemical equation is said to be balanced if the number of atoms of different…

Q: Which has a higher percentage of chlorine: Freon-12 (CCl2F2) or Freon-141b (C2H3Cl2F)

A: Percentage of chlorine = (mass of chlorine in compound/mass of compound) × 100%

Q: Calculate the mass (in g) of each of the following. 1) 6.24×1020 SO3 molecules 2) 2.9×1022 H2O…

A: Given, 1) 6.24×1020 SO3 molecules 2) 2.9×1022 H2O molecules 3) 4.9×1025 O3 molecules 4) 9.63×1019…

Q: Chemistry (1= T15HW Question 5 Homework Unanswered O Determine the percent by mass of both magnesium…

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Q: If a sample of CH3O2C(CH2)2CO2CH3 is found to contain 1.84 · 10-4 mol of O atoms how many C atoms…

A: Number of moles of the given compound with 1.84×10-4 mol O atoms is calculated as follows: 1 mol…

Q: PID "6A3919 2. Show the calculation for the number of atoms of copper contained in 0.0000282 grams…

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

Q: Determine the quantity (g) of pure MgSO4 in 2.4 g of MgSO4•7H2O. Show your work.

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Q: 40.749 1.SIX 26.98zytmot x 10- moles of leacl %3D c.8.75 28.75x10 mot ¥207.299/mor Imass 18.13g…

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Q: How many carbon atoms are present in 0.200 mol of C2H4? Please express the answer in scientific…

A: We know that 1 mol Carbon atom = 6.022×1023 atoms of carbon

Q: Please check my work. Analyze the data for the sample to get the Empirical formula of CxHy Given…

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Q: This is the chemical formula for cassiterite (tin ore): SnO2 A geochemist has determined by…

A: Given : The formula of cassiterite is SnO2. And the moles of tin i.e Sn in the cassiterite sample =…

Q: A gas chromatograph can be used to (more than one answer may be correct) O purify large quantities…

A: Gas chromatography is a technique based on the differential partitioning and migration of components…

Q: If a sample of urea, CH4N2O is 55% pure, what is the percent by mass of nitrogen in this sample…

A: Given that -  Percentage purity of urea , CH4N2O is = 55%  Molar/atomic masses are -  C = 12.01…

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A: Balanced chemical equation of a reaction is written according to law of conservation of mass. Thus,…

Q: show work pls

A: 1. (a)Given, Mass of Ni = 25.0g. Moles of Ni can be calculated as follows:

Q: b. NaNO₂ (Ka of HNO₂ = 4.5 x 10-4) c. NH4NO3 (Kb of NH3 = 1.76 x 10-5)

A: Here we have to calculate the pH of the 0.100 M of the given salts. NaNO2 is a salt of weak acid(…

Q: The density of octane, C8H18C8⁢H18, is 0.703 g/mL0.703 g/mL. Calculate the number of moles of octane…

A: Given Data :  1.density of octane = 0.703 g/mL  2. Volume = 49.1 mL  Molar mass of octane = 114.23…

Q: What is the percent by mass of hydrogen in Ca(OH)2? Group of answer choices 2.72 % 1.36% 21.6 %…

A: % by mass basically tells about the concentration of one element present in the mixture. The formula…

Q: Hilfur oxide is 50.0% by mass sulfur. This empirical formula could be For the toolbar, press ALT+F10…

A: Given:  Weight % of sulphur in sulphur dioxide = 50 %  Empirical formula is the chemical formula…

Q: Determine the quantity (g) of pure MgSO4 in 2.4 g of MgSO4•7H2O. Show your work.

A: Quantity (g) of pure MgSO4 in 2.4 g of MgSO4•7H2O =? M.W of MgSO4 = 120.366 g/mol (anhydrous) M.W of…

Q: Standardization calculations: Consider the standardization of NaOH solution using a primary standard…

A: Given, Base = NaOH Acid = KHP

Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

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Q: Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O. Show your work

A: The grams of CaCl2 in 7.5 g of CaCl2•9H2O =? molecular weight of CaCl2 = (40.08 + 2 x 35.45 =…

Q: How many Molecules are in 35.0 grams of IF3 ?     Select the correct answer: 3.13x10^24…

A: The given problem can be solved by using the formula given below as; 1 mole = Avogadro's Number…

Q: Q: A cylinder containing CH4, C;H6, and N2 has to be prepared in which the ratio of the moles of CH4…

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Q: 74. A throat lozenge contains 5.0 mg of menthol, which has the formula C10H20O. How many moles of…

A: Given : 74. 1. How many moles of menthol are in 5.0 mg of menthol? 2.What is the mass in grams of…

Q: Calculate the number of grams in each of the following ? A. 4X2S 810-4 mol H2SO4 B.4.5x 1022…

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Q: 2 NaOH(aq) + H2C2O4 = 2H2O(s) Na2C2O4(aq) + 4 H2O(l)  Calculate the mass of H2C2O4.2H2O required in…

A: Interpretation - To calculate mass of H2C2O4.2H2O required in the standardization.    Introduction-…

Q: Up late, a (tired) engineer calculated the molar mass of nitroglycerin (C3H5N3O9) to be 196.2 g/mol,…

A: Nitroglycerin = C3H5N3O9  Molar mass of nitrohlycerin = 196.2 g/mol  Percent error = ?

Q: Tell whether each of the following errors will cause the experimental mass percent of the sodium…

A: Proper heating  is  necessary  for maintaining  yield of the reaction  .

Q: Calculate the following, with proper number of significant figures: Molar mass of Al(CH3COO)3 is…

A: A question based on mole concept, which is to be accomplished.

Q: alculate the molecular weights of the following compounds. Show your complete solution. 1. NH4OH

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Q: Weight of sample (g) Vx mEw Weight ) N = 100

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Q: 1 2 4 Mean 8.75 g CO2 1 mL O2 1.5 mL O2 1 mL O2 1.5 mL O2 1.25 mL O2 17.5 g CO2 2 mL O2 2.5 mL O2 2…

A: Introduction: The mathematical data's can be depicted by graphs and chart for the comparison. There…

Q: Consider a random mixture containing 7.00x106 particles of Na2CO3 and 5.00x107 particles of K2CO3.…

A: Given: The number of particles of Na2CO3 in the mixture = 7.00 × 106 particles. And the number of…

Q: Determine the molar mass (also known as molecular weight or molecular mass) of the following…

A: Molar mass of compund= molar of one element×no of atom+ molar mass of second element×no of atom of…

Q: mothball, composed of naphthalene (C10H8C10H8), has a mass of 1.48 gg . How many naphthalene…

A: Mass= 1.48gm MOLAR mass= 128 Mole= mass÷molar mass Mole= 1.48÷128= 0.011 Molecule= mole×6×1023…

Q: hlorobenzene (MW 112.56, d 1.11) is a chemical solvent. If you need 0.77 moles of chlorobenzene,…

A: Chlorobenzene is a solvent with molecular formula = C6H5Cl Molecular mass = 112.56 g/mol Density =…

Q: 5) For each pair, indicate the LARGER quantity (number), If the two quantities are equal, whte…

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Q: Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O. Show your work please.

A: 1- First calculate the moles of CaCl2•9H2O ( Hydrated compound )  molar mass of Hydrated compound is…

Q: Manganese (Mn) content in an ore is analysed by converting Mn to Mn3O4. Calculate the minimum mass…

A: Given - % of Mn = 7.8%             Mass of Mn3O4 = 0.2340 g            Relative atomic mass of Mn =…

Q: 4) ½N2(g) + 02(g)= NO2(g) Kc = 1.04 x 10-9 N2(g) + 202(g) = N204(g) b Kc 7.42 x 10-18 Calculate Kc…

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Q: Determine the molar mass of Cu2CO3(OH)2

A: Molar mass of a molecule can be determined by adding atomic masses of all the atoms present in it.

Q: moles of C2H6in 3.75 x 10^23 moles of C2H6

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Q: pure sample of an organic molecule has the formula CxHyOz. If x = 12, y = 21, and z = 2. Calculate…

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Q: Determine the empirical formulas for the compounds with the following percentage compositions. 34.…

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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.