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A: Number of atoms = mole × avogadro number
Q: molecules
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A: The answer to the following question is given as:
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A: Given-> Weight of S = 20.0 gm 2Cu(s) + S(s) ----> Cu2S(s)
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A: Since, you have asking to solved multiple question, so I will solved first question for you with…
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A:
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A: Given -> Mole of Tl(s) = 8.2 mole Mole of S8 = 5.5 mole
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A: Limiting reagent is mg
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A: Solution to Part A: Molar mass of Epsom salt (MgSO4) = 120.366 g / mol Therefore, mass of Epsom salt…
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A: Given:- Thallium(I) sulfide is a blue-black lustrous crystal that was once used to manufacture…
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A:
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A: Given :- Total mass of BlF = 5 × 1017 kg Mass percent of Iron in BlF = 35% Molar mass of Fe = 55.8…
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A: Given, Reaction : C6H12O6+ 6O2 → 6CO2 + 6H2O mass of glucose = 191 g
Q: carbon dioxide
A:
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A: Given : % by mass of benzyl salicylate in sunscreen = 2.55 % Mass of sunscreen in 1 tube = 2.0 Oz…
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A:
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A: Mass of C6H10 = 45 g Mass of O2 = 156 g A) balanced chemical reaction B) Mass of CO2 form C)…
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A:
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A: For stoichiometric problems first we should balance the reaction 2…
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A: The given data : The mass of P4O10 = 73.6 g To determine : The moles of H3PO4
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A: Mass of sucrose is calculated as follows,
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A: Given, The number of molecules of propane (C3H8) molecule = 6.75 × 1028 number of moles of propane…
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Q: How many molecules of sodium carbonate are contained in a (9.0x10^1) g Sodium carbonate (Na2CO3)…
A: Mass of Na2CO3 = 9.0x101 g = 90 g
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A: (13) In the question, it is given that - The percentage of sodium hypochlorite (active ingredient)…
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A: Given: Mass of hydrocarbon, CxHy = 20 mg Mass of carbon dioxide = 60 mg = 0.060 g Mass of water = 32…
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A: The limiting reactant is -
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A: Given: mass of Ba(NO3)2 = 41.0 g molar mass of Ba(NO3)2 = 261.34 g/mol molar mass of BaCl2 = 208.23…
Q: Reaction: H2S+I2-> 2HI+S (A)How many grams of I2 are needed to react with 44.4g of H2S? Express your…
A: The solution is as follows :
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A: Given that, chromium metal is obtained by heating chromium(III) oxide with carbon The required…
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A: Mass percentage of an element is calculated as the mass of a component divided by the total mass of…
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A: Given-> Weight of NH4ClO4 = 8.0 gm
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A: Given 11.0 g sucrose in 60.0 g of cereal
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A: Given: Weight (in g) of AgBr = 2.8 mg = 0.0028 g Moles (n) of Na3[Ag(S2O3)2] = 0.026 moles The above…
Q: Calculate the number of molecules or formula units in each of the following amounts: 4.27 mol…
A: Avogadro's number gives the number of atoms, molecules or ions in one mole of the substance and it…
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- itamin B12 , cyancobalamin, is essential for human nutrition. Its molecular formula is C63H88CoN14O14P . A lack of this vita min in the diet can lead to anemia. Cyanocohalamin is the form of the vitamin found in vitamin supplements. l type='a'> What is the molar mass of cyanocobalamin to two decimal places? How many moles of cyanocohalamin molecules are present in 250 mg of cyanocobalamin? What is the mass of 0.60 mole of cyanocobalamin? How many atoms of hydrogen are in 1 .0 mole of cyanocobalamin? What is the mass of 1.0107 molecules of cyanocobalamin? What is the mass (in grams) of one molecule of cyanocobalamin?How many formula units are in 3.25 moles of (NH4)2SO4? [?]x10 formula unitsName: 1. Which sample contains a total of 9.0 × 1023 atoms? (1) 0.50 mole of HCI (3) 1.5 moles of Cu (2) 0.75 mole of H₂O (4) 1.5 moles of H₂ 2. What is the total number of nitrogen atoms in 0.25 mole of NO2 gas? (1) 1.5 x 1023 (2) 6.0 x 1023 (3) 3.0 x 1023 (4) 1.2 x 1024 3. What is the total number of neon atoms contained in 20.2 grams of neon gas? (1) 1.01 x 1024 (2) 2.02 x 1024 (3) 3.01 x 1023 (4) 6.02 x 1023 Practice 4. Which sample contains a total of 6.0 x 1023 atoms? (1) 23 g Na (2) 24 g C (3) 42 g Kr (4) 78 g K 5. The number of atoms in 10. grams of calcium is equal to 6.0 x 1023 multiplied by (1) 0.25 (3) 10. (4) 40. (2) 0.50 6. How many molecules are contained in 127 grams of iodine (1₂)? (1) 1.50 x 1023 (2) 3.01 x 1023 (3) 9.03 x 1023 (4) 12.4 x 1023 7. What is the total number of molecules of SO₂ in a 0.10-mole sample of SO₂? (1) 6.0 × 1021 (2) 6.0 × 1022 (3) 6.0 x 1023 (4) 6.0 x 1024 Quantities of Matter 8. What is the total volume occupied by 132 grams of CO₂(g) at STP?…
- A sample of sodium carbonate, Na2CO3. weighs 11.0 g. Calculate the following quantities. (a) moles of Na2CO3 (b) number of Na2CO3 formula units (c) number of Na+ ions (d) moles of CO32- (a) _?_ mol Na2CO3 (b) _?_ x 10 _?_ formula units Na2CO3 (c) _?_ x 10 _?_ Na+ ions (d) _?_ mol CO32-5.(0-2) The combustion of a 0.265g sample of a chemical compound yielded 0.880g of carbon(IV) oxide and 0.225g of water vapor. The molar mass of this chemical compound is 106 9. Determine mol the sum formula of this chemical compound.(11) How many sodium sulfate formula units are in 0.333 mol?
- *Hexane, C6H14, is known to have a density of 0.655 g/mL at room temperature. How many moles would be in a 25.2-mL sample of hexane? Is it: 16.5, 38.5, 0.446, 86.2, or 0.191When the following equation is properly balanced, what is the coefficient for __O2(g)? __C6H6(l) + __O2(g) --> __CO2(g) + __H2O(l) (A) 6 (B) 9 (C) 12 (D) 15This is the chemical formula for hexanal: CH3(CH2),CHO. 4 Calculate the mass percent of carbon in hexanal. Round your answer to the nearest percentage. ?
- Ethanol, C2H5OH, has a density of 0.785 g/mL and a molar mass of 46.07 g/mol. How many moles of ethanol are present in 1.00 L of pure ethanol? (A) 17.0 moles (B) 21.7 moles (C) 27.7 moles (D) 2.77 molesHIN: H-C-0-CI: Using: Element C H CI H N O H Atomic Mass (g/mol) 12.01 35.45 1.008 14.01 16.00 Calculate the molar mass (formula mass), of Compound A, shown above, Report your numeric answer to 3 decimal places (no units required)How many ions of sodium are in the 71.0 g Na₂SO4 sample? [2x10 Na ions Coefficient (green) ional Academy of Science. All Rights Reserved, ✿ Exponent (yellow) 8 Enter Home