Calculate the percent composition for H2O. O H=11.19% O=88.81% O H=12.00% O=90.88 O H=10.32% O=87.11% O H=9.45% O=89.0% O None of the above

Q: Convert 47.5 g O2 to mol O2. Group of answer choices 2.860 x 1025 mol 0.674 mol 1.484 mol 1.52 x 103…

A: The question is based on mole concept. We have been given mass of oxygen. we have to convert it into…

Q: 3. Н.РО, 4. Al(ОН),

A: Given, 3. H3PO4 4. Al(OH)3      Required,                    Percentage composition of the above…

Q: Question 16 16. Calculate the mass% of N in (NH4)2CrO4. N=14.00 g/mole, H 1.008 g/mole, Cr-52.00…

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Q: Given the following equation: 2 C4H10 + 13 O2 + 8 CO2 + 10 H20, show what the following molar ratios…

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Q: Calculate the empirical formula of each substance from their spectrograms. 1) Co = 0.672 g, As…

A: Empirical formula can be calculated by - (A) Take % of different atoms. (B) devide % by Atomic mass.…

Q: What is the percentage composition by mass of the substance shown below? % C = i % S = i %H = i How…

A: The given molecules contain: The number of carbon atoms is = 2 The number of sulfur atoms is = 1 The…

Q: How many O atoms are in 2.00 g  Al2O3 ? Al = 26.98 g/mole, O = 16.00 g/ mole

A: Recall the data, mass of Al2O3=2.00 g molar mass of Al=26.98 g/mole molar mass of O=16.00 g/ mole

Q: USING the palalicEu equatiOTT 1N2 3H2 2NH3 Determine the number of moles of NH3 formed from the…

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Q: 1. What is the molecular formula for the compound that has a molar mass of 180.2 g/mol and the…

A: You have asked multiple type questions, we will solve only first  questions for you. If you want any…

Q: A compound contains, by mass, 81.7% carbon and 18.3% hydrogen. A 0.15 mole sample of this compound…

A: Given  % Carbon  = 81.7 %  % H   =  18.3 %  Number of mole     = 0.15 mole  Mass of compound = 6.6…

Q: 2 NaOH + H2S04 2 H20 + Na2S04 How many grams of sodium sulfate will be formed if you start with 200…

A: Given2 NaOH + H2SO4  →  2 H2O  +  Na2SO4Mass Of NaOH used = 200 gMolar Mass of NaOH = 39.997…

Q: OH 時 10% КОН CH3 water, boill

A: In this question, we want to draw the structure of Products.  You can see details mechanism and…

Q: A common ingredient in homemade laundry detergents is Washing soda, you were asked to do an analysis…

A: Molar mass is defined as an average mass of atoms present in the chemical formula. It is the sum of…

Q: what is the percent composition of C in C3H8?

A: • Steps to calculate percent composition:- Find the molar mass of all the elements in the compound…

Q: How many moles of calcium hydroxide are made from 5.3 moles of water? CaC2 + 2H20 ---> C2H2 +…

A: Given: Moles of water = 5.3 moles

Q: Suppose 7.5 g of Compound A are consumed in a reaction with 3.5 g of Compound B that produces only…

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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: Calculate percent composition from a compound formula. Determine the percent composition of each…

A: Given compound: K2CO3 We have to determine the percent composition of each element in K2CO3.

Q: Calculate the percent composition of hydrogen in C2H5OH 52.14%

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Q: A compound has the following percent compositions. Find the empirical formula of this compound.…

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Q: A 2.05 g sample of an unknown compound contains H, S, and O. If the compound contains 0.050 g H and…

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Q: 4) A mixture weighing 28.516 g contained 4.518 g NH4C1, 15.250 g SiO2, with the remainder being…

A: Given data is Weight of the mixture=28.516 g  Weight of NH4Cl = 4.518 g  Weight of SiO2 = 15.250 g…

Q: How many g of H2O can be formed from 6.50 g CH4?  CH4  +  2 O2  ----->CO2 +  2 H2O

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Q: What is the mass percent of hydrogen in methane CH4?   25.13%   16.13%   20%   50%

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Q: STEP 1. Calculate the %O in Cr2(CO3)3 to 4 significant figures. %O =  STEP 2. How many moles of…

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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: Writing Empirical Formulas from Chemical Formulas

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Q: How many moles are in 1.88 g Al2O3? Al = 26.98 g/mole, O = 16.00 g/mole.

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Q: What is the simple formula for a compound containing 32.1% Ni, 15.3% N and 52.5% O?

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Q: How many moles of atoms are contained in 12.4 g CH4? Group of answer choices 198 moles 0.773 mole…

A: 1) How many moles of atoms are contained in 12.4 g CH4?

Q: How many moles are present in 25.8 g of H2CO3? O 0.416 mole O 1.208 mol O 0.625 mol O 0.948 mole

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Q: What is the percent composition of the antibiotic tetracycline, which has the molecular formula of…

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Q: Calculate the percent composition by mass of each element in NaCio3. % Na = 23 % Cl = 35 % O = 48

A: The percent composition by mass of each element in NaClO3 is to be determined.

Q: Butyric acid is the odor of rancid cheese. Calculate the empirical formula for butyric acid given…

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Q: 2.050 g of an unknown sample contains H, S, and O. If the compound contains 0.0500 gHand 0.800 g of…

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Q: 1. What is the percent composition of each element in MgBr2? 2. Calculate the percent composition of…

A: %Composition can be calculated as :    %composition = mass of components / total mass ofmolecules…

Q: 4a Calculate the empirical formula of a compound given the following percent composition. c=-44.5%;…

A: Given data, C = 44.5% H = 3.70% N = 51.8%

Q: Convert the following into moles 0.837 g Ca(C2H3O2)2

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: a 0.3528 g sample containing only AICI, (133.33 g/mol) and BaCl, (208.23 g/mol) yielded 0.6328 g of…

A: Here we will need to use two variables equation to solve for the number of moles of BaCl2 and AlCl3.…

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.