5. Determine the empirical and molecular formula for the following compounds. a. A pure compound is found to have the following percent composition: 40.44% C, 7.92% H, 35.92% O, and 15.72% N. Determine the empirical formula of this compound. b. A certain compound is 5.9% hydrogen and 94.1% oxygen and has a molar mass of 34.0g/mole. Determine the empirical and molecular formula. c. A sample of a compound is found to contain 23.35g of C, 1.05g of H, 14.78g of N and 33.83g of O. The molar mass of the compound is 213.0g/mole. Determine the empirical and molecular formula of this compound. d. A certain red dye is found to be 59.988% C, 4.146% H, 12.345% N, 9.420% S, and 14.101% O. The molar mass of the dye is 680.0g/mole. Determine the empirical and molecular formula of this compound.

Q: Consider the following UNBALANCED chemical equation FeS (s) + HCl(aq) → FeCl2(aq) + H2S(g) If 60.6 g…

A: Given, the unbalanced equation: FeS(s) + HCl(aq) → FeCl2(aq) + H2S(g) We have to find the mass of…

Q: Mn (s) + 2 CuCl (aq) --> 2 Cu (s) + MNCI2 How many grams of Cu will be produced by 4.4 moles of Mn?…

A: Given reaction,        Mn(s) + 2 CuCl(aq)  →  2 Cu(s) + MnCl24.4 moles of Mn

Q: . What is the percent by mass (percent composition) of each element with then the compound magnesium…

A: 1) What is the percent by mass (percent composition) of each element with then the compound…

Q: How many grams O in 283.0 g Fe(OH)3? Molar mass of Fe(OH)3 is 106.867 Hint: 1 mole Fe(OH), has 3 mol…

A: We know that, Number of moles = Given mass / Molar mass  Mass = Number of moles x Molar mass  Number…

Q: a hydrated CuSO4 salt was heated and thus dehydrated. Determine the % H2O by weight in the hydrated…

A: The number of moles is a ratio of the mass of a substance to the molar mass of the substance.…

Q: rtobstodafo I nominoq В. Determination of NaCl 86.096 1. Mass of evaporating dish #2, watch glass,…

A:

Q: be

A: Based on formula weight we can calculate the % mass composition of constituting atoms/elements

Q: Calculate how many grams of chlorine gas are in 7.099 x 1023 atoms of chlorine gas

A:

Q: Katie heats her hydrate to remove the water and obtain the anhydrous cobalt (II) compound CoCl2. Her…

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Q: 12. Sulfur (S) reacts with nitric acid (HNO3) to produce sulfuric acid (H2SO4), nitrogen dioxide…

A:

Q: In chemistry, particles are counted by the: Group of answer choices common term scientific notation…

A: The particles are considered to be the smallest unit of a compound in the chemistry.

Q: 5. Here is the equation for the reaction between sodium metal and chlorine gas: 2Na + Cl2 2NaCl This…

A: Since you asked question number 5 so, as per Q&A guidelines of portal I solve question 5 for…

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: Consider the reaction, 3CCI4+2S6F3>3CCI2F2 + 2S6C13 if 150.0 g of CCI4 (153.8 g/mol) is mixed with…

A:

Q: 5.000 gram sample of hydrated beryllium carbonate, BeCO3·xH2O is heated according to the procedure…

A: To calculate the number of moles of H2O and BeCO3.

Q: How many molecules are in 52.35 grams of aspartame? C14H 18 ,05 2.89 X 1022 Atoms C subscript 14 H…

A: Option( B) is correct.

Q: 1. A compound that contains only carbon, hydrogen, and oxygen is 40.54% C and 5.44% H by mass. What…

A: “Since there are multiple questions in this question and it is not mentioned that which one has to…

Q: 1. Convert 5.00 moles of Carbon to grams. Starting amount (moles) Conversion Factor Ending amount…

A: The relationship between number of moles (n) and mass of a substance is: n=Given massMolar…

Q: 1. A 4.24mg sample containing only Carbon, Hydrogen, and Oxygen was burned and produced 6.21 mg of…

A: Given  Total mass of sample = 4.24 mg mass of CO2 = 6.21 mg mass of H2O = 2.54 mg (a) Moles of C…

Q: Calculate the mass of Mg. Calculate the mass of the product. Calculate the moles of Mg in the…

A: Mass of any product is calculated by eliminating the mass of watch glass and evaporating dish from…

Q: Another hydrated compound containing Sodium, Boron and Oxygen was investigated.  250.00 g of the…

A: When NawBxOy×Z H2O is heated, the water molecules attached are removed and then decomposed to give-…

Q: Find the percent, by weight, of each component.

A:

Q: Balance these chemical equations. (Use the lowest possible whole number coefficients.) (a)    SO2 +…

A:

Q: Calculate the percent composition by mass of each element in Al(OH)3.Al(OH)3. Use at least three…

A:

Q: Copper(I) iodide (CuI) is often added to table salt as a dietary source of iodine. How many moles of…

A: The mass of copper (I) iodide (CuI), mCuI, in 1.00 lb or 454 g of table salt is;…

Q: In a lab experiment, 5.2 g of Mg reacts with sulfur to form 12.1 g of magnesium sulfide. (a) Use…

A: Given Mass of Mg = 5.2 gram Molar Mass of Mg = 24.305 g/mol Mass of MgS formed = 12.1 gram Molar…

Q: g. If the chemical reaction produces 56.2 grams of NH3, then how many moles of N2 gas were needed?…

A: N2+3H2–>2NH3 From this Balanced chemical equation we get that ; 1 mol N2 React with 3 mol H2 and…

Q: How many grams O in 115.6 g Fe(OH)g? Molar mass of Fe(OH)g is 106.867 Hint: 1 mole Fe(OH)g has 3 mol…

A: Given: Molar mass of Fe(OH)3 = 106.867  Mass of Fe(OH)3 = 115.6 g. And each mole of Fe(OH)3 has 3…

Q: Balance these chemical equations. (Use the lowest possible whole number coefficients.) (a)    Sr +…

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Q: Consider the following chemical reaction. 3 Zn(C₂H₃O₂)₂(aq) + 2 Na₃PO₄(aq) → 6 NaC₂H₃O₂(aq) +…

A: The formula weight (FW) of a compound is calculated using the following expression: FW=∑ni×Mi where…

Q: 1) 25.0 grams C to mole 2) 75.0 grams Ne to mole 3) 0.500 mole CO, to grams 4) 4.00 mole H,0 to…

A: The number of moles of compound can be calculated as follows: Moles of the compound=Mass of the…

Q: A balanced chemical equation contains the term "2Ba(OH)2⋅8H2O." How many atoms of each element does…

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Q: 1.75 x 1023 atoms Pb converted to grams

A:

Q: Suppose you are performing an experiment in which you produce a solid and measure its mass. You run…

A: Solution:- Given Data => Trial number Mass of product 1 2.59 g 2 2.26 g 3 1.91 g 4…

Q: How many moles are co Type in answers without units, using scientific notation-include three decimal…

A: Since you have asked multiple questions, we are solving first question for you. For remaining…

Q: 4. What is the percentage of water in the hydrate? mass of water in sample X 100 44.8% H,0 % water =…

A: The mass of water in a sample is 0.729 g. The mass of hydrate sample is 1.628 g.

Q: 1. How many moles are in each of the given samples? a) 2.50 mL of water (assume density of water is…

A: Note : As per our guidelines we are supposed to answer first 3 parts .please resubmit the other…

Q: Balance these chemical equations. (Use the lowest possible whole number coefficients.) (a)…

A: When no. Of atoms in reactant and product side are reaction is called balanced.

Q: Part B: Percentage of Baking Soda in an Unknown Mixture 110 UNKNOWN # Mass of test tube and beaker…

A: Mass of unknown mixture = 1.60 g  Mass of H2CO3 released = 0.51 g    Then from following reaction -…

Q: MnO2 +  4HCl  --->  MnCl2  +  Cl2  +  2H2O If 0.86 mole of MnO2 reacts with 48.8 g HCl, and 24 g of…

A: Mole of MnO2 = 0.86 mol  Mass of HCl  = 48.8 g  Mass of Cl2 = 24 g  Percent yield = ?

Q: Convert 5.70 mol NaCl to moles of CaCl2, using the equation given below. Round to the nearest 0.01,…

A: The balanced chemical equation is: 2 Na3PO4 + 3 CaCl2 ---> Ca3(PO4)2 + 6 NaCl

Q: The chemical Oswegium Patheride's formula is Os3Pa2. Oswegium's (Symbol Os) atomic mass is 10 grams…

A: The chemical formula of Oswegium pantherides is Os3Pa2. Given that, the atomic mass of Oswegium is…

Q: Convert 3.48 mol NaCl to moles of CaCl2, using the equation given below. Round to the nearest 0.01,…

A:

Q: Convert 4.49 mol NaCl to moles of CaCl2, using the equation given below. Round to the nearest 0.01,…

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

Q: MnO2 + 4HCI -→ MnCl2 + 2H2O + Ch For items 7 to 9: 7. What is the mole ratio of MnO2 to H2O? 8. What…

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Q: 1.The compuond cisplatin Pt(NH3)2Cl2 is an antitumor. a)Calculate the elemental percent composition…

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Q: how many molecules are in the sample 2.0 g H2O? Express your answer using two significant figures.

A: Number of moles of water can be calculated as follows: No. of moles = MassMolar massNo. of moles =…

Q: Determining the percent water and the formula of a hydrate Mass of crucible 12.73 grams Mass of…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".