What is the percent by mass of oxygen in (NH,)½SO3? O 41.3 % O 20.7 % O 54.0% O 42.0 % O 24.1%

Q: What is the percent composition of oxygen in AuSO4?

A:

Q: Calculate the number of grams of SO2 that could be produced from 3.25 moles of oxygen (moles 02 →…

A: Using mole-mass analysis on balanced chemical reaction we can find amount of SO3 produced.

Q: How many grams are in 1.18 x 1021 HF molecules? H = 1.008 g/mole and F =19.00 g/mole

A: Number of mols = Weight in gMolecular weight in g/mol Then Weight of the substance = Number of mole…

Q: How many grams of CaF2 would be needed to produce 9.53×10-1 moles of F2?

A: Calculation for moles of HF:1 mole of F2 is produced from 2 moles of HF.9.53×10-1 mole of F2 is…

Q: What is the percent composition of Magnesium in Mg(OH)2?

A: From the Percent composition we can find what percent of each element is present in a compound.  It…

Q: how many moles of NO2 are required to produce 1.33 mol of HNO3 in 3NO2+H2O=2HNO3+NO

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Q: What is the number of molecules in 256g of Li3PO4? OA 1.46 x 10-24 O B. 1.46 x 1023 OC. 1.46 x 10-23…

A: 1 mole of compound contain 6.022×1023 molecules . 1 mole = 6.022×1023 molecules  To find the number…

Q: The chemical formula for feldspar is K₂Al₂Si₆O₁₆. How many moles of feldspar are in 669.9 grams?

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. Write…

Q: 2 Agl + Nazs → Ag2S + 2 Nal O 6.00 moles O 1.00 moles O 2.00 moles O 3.00 moles

A: Moles of AgI = 2.00 moles Moles of Na2S = 3.0 moles

Q: Calculate the amount of oxygen, nitrogen, and carbon dioxide that are produced or consumed by the…

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Q: what is the percent by mass of oxygen in citric acid? (MM=192.12 g/mol)

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Q: How many moles of H2O are produced by 6.20 mol of O2 ?

A: moles of H2O are produced by 6.20 mol of O2 is given by

Q: How many moles of H₂O are produced by 6.20 mol of O₂?

A:

Q: From the previous question convert 159.8 of Br2 to moles of Br2 O 1 mole of Br2 O 3 moles of Br2 O 2…

A: Molar mass of Br2 = 159.8 g/mol Moles of Br2 = mass of Br2 in g / Molar mass of Br2 in g/molGiven…

Q: How many moles of carbon are in 7.50 g of the compound C3H4O2? Atomic Mass: C = 12.01; H = 1.008; O…

A: Given  mass of compound = 7.50 gram  Number of moles of carbon = ?

Q: 4 Fe + 3 O2 2 Fe2 O3 What is the mole ratio of Fe2 O3 to O2?? 4 to 3 2 to 3 3 to 2 O3 to 4

A: Given reaction is,  4 Fe + 3 O2 -> 2 Fe2O3 We need to determine molar ratio of Fe2O3 and O2 .

Q: How many moles are in 1.75g 02? O 1.75 g O2 +1 mol/32.02 moles O2 O 32.02 moles O2 O 1.75 g O2 x 1…

A: Recall the expression of moles as follows       moles=given mass of the compoundmolar mass of the…

Q: The formula for molybdenum(IV) hydroxide is Mo(OH)4. What is the percent by mass of oxygen in…

A: percent by mass of O = (mass of O/mass of Mo(OH)4 ) × 100%

Q: Given the following reaction: Na2S2O3 + AgBr → NaBr + Na3[Ag(S2O3)2] (a) How many moles of NazS2O3…

A: first balance the given equation balanced equation is 2Na2S2O3 + AgBr -------> NaBr +…

Q: Assume vit K1 makes up 0.052% ( by mass) of cilantro. How many moles of vit K1 is there in your…

A: Vit K1 makes up 0.052% (by mass) of cilantro. 1 tsp of cilantro is used here and volume of 1 tsp is…

Q: Find out the molar mass of Ca3(PO4)3. Select one: O 504 g/mole O 450 g/mole o 405g/mole O 430 g/mole

A: Atomic mass of calcium is 40 g/mole Atomic mass of oxygen is 16 g/mole Atomic mass of phosphorus is…

Q: How many moles are present in 35.6g of H2SO4?

A: Given the mass of H2SO4 = 35.6 g The molecular mass of H2SO4 = 98 g/mol

Q: 4. low many moles re present whe there are 1.00 · 1026 molecules of water? 166 moles 175 moles 200…

A: Mole can be defined by saying that, "The mole is the unit of measurement for the amount of…

Q: 3.B) Determine the number of moles and mass of Al(OH)3 produced.  Al2(SO3)3 + 6NAOH -> 3Na2SO3 +…

A: The part (b) is related with part (a), so for solving (b), information of part (a) should be…

Q: How many moles of atoms are contained in 15.5 g of Br2 ?

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Q: If 35g of H2 are used, how many grams of NH3 would be produced?

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: Calculate the number of moles of chlorine in 5.25 g of MgCl2? O 0.0879 mole chlorine O 0.0110 mole…

A:

Q: How many moles of H₂O can be formed from 2.87 × 10²³ molecules of NH₃ from the following equation? 4…

A: In the balanced Chemical Reaction -  4 NH₃(g) + 5 O₂(g) → 4 NO(g) + 6 H₂O(g) 4 moles of Ammonia…

Q: How many moles of KClO3 are needed to make 3.50 moles of KCl?

A: The corresponding reaction can be written as, 2KClO3→2KCl+3O2

Q: How many grams of NO2 are needed to make 1.5 g of N2?

A: Given :- mass of N2 = 1.5 g  To calculate :- mass of NO2 (in grams)

Q: 2. Calculate the number of moles in 500 mg Na SO?. (MW of Na,SO,=293.8 mg/mmol). Dr. Marwa Nizar…

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Q: How many moles of MgCl2 are present in 78.3g of MgCl₂? O 0.822 moles O 7450 moles O 1.31 moles O4680…

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Q: What is the percent composition by mass of the hydrogen in (NH,)2HPO,? (3 pts) x Clear AUndo Redo

A: Percent composition by mass of the hydrogen= 6.82%

Q: What is the percent by mass of chlorine in Ca(ClO 3 ) 2

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Q: Determine the percent ammonia, NH3, in Co(NH3)6Cl3.

A: In Co(NH3)6Cl3, 6NH3 are there.  Molar mass of 6 NH3 = 6x17.04 = 102.24 g/mol Molar mass of…

Q: 2. CONVERT THE FOLLOWING INTO Moles (a) 20g of NaOH (b) 5g of Ca(OH), (c) 3L of Og (d) 2.5L of N,g

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Q: Convert 32 grams of C2H,OH to moles.

A: Ethanol is an organic chemical compound. Its chemical formula C₂H₆O. It is used as a solvent.…

Q: What is the percent composition by mass of carbon in the chloroform CHCl 3 ?

A: Given: compound: CHCl3 molar mass of C = 12.01 amu molar mass of CHCl3 = 119.37 amu

Q: How many grams of N2 will be used to produce 85.5 moles of MgN3

A: Balanced Reaction 2 Mg +3N2 →2MgN3 Now 2 mol Mg reacts with 3 mol N2 and produce MgN3.  This is…

Q: Siven the unbalanced chemical equation, C5H12(1) + O2(g) → CO(g) + H20(1), which one of the pllowing…

A: The reaction given is, => C5H12 (l) + O2 (g) -------> CO (g) + H2O (l)

Q: Calculate the number of moles of H2 produced u

A: Number of moles = mass/molar mass  Molar mass of Mg = 24.305 g/mol

Q: Calculate the percent composition by mass of each element in NaCIO,. % Na = % % Cl = % O = %

A: %composition of elements in compound is calculated by mass of element in compound divided by total…

Q: a correct mol ratio for the relationship between hydrogen gas and ammonia in the following equation…

A: For determined of mol ratio first required a balance equation. The coefficient ratio of two…

Q: Iron in the form of fine wire burns in oxygen to formiron(III) oxide.4Fe(s) 1 3O2(g) h 2Fe2O3(s)How…

A: The balanced equation between iron and oxygen are given by

Q: y moles of O2 8

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: How many grams of N20 are produced from the reaction of 12 moles of N2 and 11 moles of O2? 2N2 +O2…

A: Moles of N2= 12 mol Moles of O2 =11 mol Molar mass of N2O= 44.0 13g/mol Mass of N2O=?

Q: ● Which of the following 100.0-g samples contains the highest percent oxygen by mass? H2O N20 C3H6O2…

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Q: Calculate the number of O atoms in 0.0782 g of CaSO4·2H2O

A: Given: mass of CaSO4·2H2O = 0.0782 g molar mass of CaSO4·2H2O = 172.17 g/mol

Q: Calculate the percent composition for H2O. O H=11.19% O=88.81% O H=12.00% O=90.88 O H=10.32%…

A: "Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: How many moles of Pb(SO4)2 are equivalent to 186.7 g of Pb(SO4)2 (Mw. 399.34 g/mol)?

A: Number of moles = mass /molar mass

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.