If 5.00 grams of an unknown yield 0.500 grams of BaSO4 when treated with excess BaCl2, what is the percent sulfate ions, SO4 2-, in this unknown

Q: Calculate the empirical formula of a compound which contains 47.3 percent C, 10.6 percent H, and…

A: The unknown compound contains 47.3% C, 10.6% H, and 42.1% O by weight   We know that --- the atomic…

Q: How many grams of H2 are needed to prepare 25.0 grams of NH3 according to the equation: N2 + 3H2…

A: Given data: Mass of ammonia = 25.0 g

Q: he percentage yield of the f.f reaction is 90% CH4(g)+ S(g) ----> CS2(g)+H2S(g) how many grams of…

A: The balanced reaction is: CH4(g)+4S(g) → CS2(g)+2H2S(g) Mass of CS2 needed to obtain = 80.0 g Molar…

Q: determine the percent yield of asprin using 3 grams of salicylic acid, and obtained 2.3 g of asprin…

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Q: A compound has an approximate molar mass of 84.00 grams/mole and an empirical formula of CH2CH2.…

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Q: 3.4.3 Determine the empirical formula of a compound that has the following composition: 92.3 percent…

A: The reduced ratio of the elements in a compound is represented by the empirical formula of the…

Q: How many moles of C4H8O2are in 6.00 g of butyric acid?

A: Given  Mass of C4H8O2 = 6 gram  Number of mole = ?

Q: para cresol(p-cresol) known as bug killer and sanitizer. By combuston analysis of 0,3654 g sample of…

A: The molar mass of CO2 = 44 g/mol No of moles of CO2 = nCO2=Given massMolar mass =1.042 g44 g/mol…

Q: Calculate the moles of CO2 when 20.0 grams of C3H8 reacts with an excess of 02 C3H8 + 502 → 3CO2 +…

A: Given balanced equation is  C3H8 + 5O2 ------> 3CO2 + 4H2O Mass of C3H8 = 20.0 g Molar mass of…

Q: 2. NaHCO3 is the active ingredient in baking soda. How many grams of oxygen are in 0.35 g of NaHCO3…

A: Dear student as per rules as per allowed to answer one question for one upload , so I am answering…

Q: How many grams of Li2SO4 are produced if 5 moles of K2SO4 are reacted with an excess of lithium (Li)…

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

Q: Calculate the number of grams of BaCl2 • 2H2O required to react completely with 0.500 grams of…

A: Given information: the mass of K2SO4 is given to be 0.500 grams. Molar mass of K2SO4 is found to be…

Q: 1. Mg HCI MgCl2 H2 + If 4.50 g Mg is made to react with HCl, how many grams of H2 will be…

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Q: What is the molar mass of (NH4)2CO3? Use the number of sigfigs from your Reference Sheet. (Do not…

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Q: The following may be needed: 1 mol=6.022x1023. 1) Calculate the molecular mass and molar mass of…

A: 1.

Q: How many grams of K  are produced if 32 moles of K2SO4 are reacted with an excess of lithium (Li)…

A: Given that : Number of moles of K2SO4 = 32 moles We have to calculate the mass of K formed when 32…

Q: 7. If 23.9g of Cu3(PO4)2 react with plenty of KCI how many grams of CuCl2 can be produced? 8. Using…

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Q: what is the percent by mass of hydrogen in the preservative formaldehyde CH2O 6.713% 53.29%…

A: Given formula is , CH2O Formula mass= 30.026 g/mol

Q: how many grams of Al2O3 could be produced?

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Q: Arrange the following in order of INCREASING number of moles. (A) 30.00 g of C6H5N (B) 25.00 g of…

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Q: How many moles of ammonia would be required to react exactly with 0.318 moles of copper(II) oxide in…

A: The chemical equation may be qritten as:   2 NH3(g) + 3 CuO(s) → 3 Cu(s) + N2(g) + 3 H2O(g)   By the…

Q: can you solve these 2 and just provide the answer I solved most of the work I just couldnt get the…

A: Conversion of atoms and molecules to moles,

Q: A scientist reacts 3.0g of CH4 with excess O2 and makes 5.1g or H20. What is the percent yield?

A: Percent yield for reaction refers to the percentage ratio ff actual yield to the theoretical yield.

Q: A pure compound containing only rhodium and bromine has the mass percent composition 24.36 % Rh and…

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Q: A compound was decomposed and determined to be 51.27 % C, 7.75% H and 40.98 %O  by mass.  What is…

A: Given  C%   = 51.27 % H     = 7.75 %  O     = 40.98 %  Subscript of Carbon in Empirical Formula   =…

Q: Estradiol is a potent female hormone. In 1934, Edward A. Doisy of Washington University extracted…

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Q: How many atoms of Cu are in 0.763 mol Cu?

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Q: How many moles of glucoseare present in 50.0 grams of an aqueoussolution that is 2.50% by mass…

A: Given that: 50.0 grams of an aqueous solution that is 2.50% by mass glucose. So mass of glucose in…

Q: a) why is the atomic mass of iron the same as the molar mass of iron? b) Describe how you calculate…

A: (a.) As we know that the atomic mass of an element, measured in amu, is the same as the mass in…

Q: Calculate the molar mass of acetic anhydride, C4H6O3.   Calculate the number of moles of potassium…

A: 1. We have to calculate the molar mass of acetic anhydride. 2. We have to calculate the moles of…

Q: Johny isolated 25 g of a compound following a procedure that would theoretically yield 81 g. What…

A: The percent yield is defined as the ratio of practical yield to that of theoretical yield,…

Q: can you solve these 2 and just provide the answer I solved most of the work I just wanna make sure…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: 6. How many molecules of C3H8 are in a sample of 1.5 mol? 7. How many molecules of carbon dioxide…

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Q: Calculate the number of grams of each product produced in the reaction of 5.50 g of NazPO4 and…

A: stoichiometrically we can determine the mass of product by establishing a relation between the mole…

Q: Suppose 3.5 g of Compound A and 8.5 g of Compound B are consumed in a reaction that produces only…

A: To solve this problem we will use Law of Conservation of mass . According to this law  Mass of…

Q: Please provide detailed steps as I am using this to study, along with explanations as to what you…

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Q: Convert to moles: 2.00 g of valium /diazepam (C15H13CIN20) O 5.46 mol O 0.00843 mol O 0.00824 mol O…

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Q: The reaction of P4O10 with excess H2O produces phosphoric acid, H3PO4. How much phosphoric acid can…

A: Given information,      Mass of P4O10 is 125.3 g

Q: Starting with the following equation, BCl₃(g) + LiAlH₄(s) → B₂H₆(g) + LiAlCl₄(s) calculate the…

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Q: Estradiol is a potent female hormone. In 1934, Edward A. Doisy of Washington University extracted…

A: Given that the mass of CO2 and H2O released or collected are 14.54 mg and 3.97 mg, and 5.00 mg of…

Q: Take Hg(l) + Br2(aq) 2Br^-(aq) + Hg2^+(aq) If 4.20 grams of Hg are consumed, how many grams of…

A: Calculation of mass of product formed using stoichiometry of a reaction:

Q: How many grams are in 6.51 moles of H2SO4?

A: Given, moles of H2SO4 = 6.51 moles mass of H2SO4 = ? Note:  molar mass of H2SO4 = 98.079 g/mol

Q: What mass of H2 in grams is produced from the reaction  if 1.24 mol of H3PO4 was used. EQ : 2Cr +…

A: In a chemical reaction mass is always conserved. Total mass of reactant side and product side will…

Q: A hydrocarbon compound (containing only H and C) is completely combusted in excess oxygen gas.  If…

A: Given : The compound contains only C and H. Mass of CO2 i.e carbon dioxide produced on combustion =…

Q: H3PO4 + 3NaOH ---> Na3PO4 + 3H2O     If you mix 100 ml of 8.5M H3PO4 with 150 ml of 9.0M NaOH, how…

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Q: 3 Sr(C2H3O2)2 (aq) + 2 Li3PO4 (aq) ⟶ 6 LiC2H3O2 (aq) + Sr3(PO4)2 (s) How many moles of strontium…

A: We have to find mole of strontium phosphate.

Q: Calculate the grams of chloric acid produced from 14.3 g of chlorine dioxide with excess water.…

A: Given Mass of chlorine dioxide ( ClO2) = 14.3 g

Q: What is the percent Oxygen in MnO2     36.7%   18.35%   63.3%   33.3%   75.3%

A: The molecular formula of manganese oxide is MnO2. We know that the molar mass of manganese is = 55…

Q: How many grams of Mg3(PO4)2 can be produced when 82.0 mL of 3.5 M MgCl2 reacts with excess sodium…

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Q: If 16.5 g of Al203 reacts with an excess of HCI to form 48.4 g of AICI3, what is the percent yield?…

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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.