atoms

Q: Question 11 D Mass of Zn 2.44 g Mass of Cu 0.063 g The mass of Zn and the mass of Cu in a coin are…

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Q: Experiment 3 Molar Mass of a Copper Compound 3. A 2.1463 g sample of a silver compound contains…

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Q: Combustion of 63.8 mg of a compound C,H,Oz produces 145.0 mg CO₂ and 59.38 mg H₂O. The molar mass of…

A: Check the number of moles in the given masses and use mol to mol ratio to convert moles in the mass.

Q: ) Ag:CrO4 ) HIO2(aq) ) Hg:(PO4)2 SnF2

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Q: Calculate the number of moles of hydrogen peroxide molecules, H2O2, present in a sample containing…

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Q: Calculate the number of atoms or molecules in each of the following: Help on Questions #22 #23 #24

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: Part A Which of the following is the correct formula weight for calcium phosphate? 310.2 amu 175.1…

A: Given,The compound:  calcium phosphateAtomic mass of Ca=40.078 amu, P = 30.97 amu and O = 16.0 amu

Q: How many moles of sodium (Na) are there in a 50.0 gram sample of the metal?   Group of answer…

A: Correct option is - 2.17 moles Na

Q: The empirical formula for trichloroisocyanuric acid, the active ingredient in many household…

A: Empirical formula : Simplest whole number ratio of a compound is called empirical formula…

Q: Which of the following is the correct formula weight for calcium phosphate? O 310.2 amu O 135.1 amu…

A: The correct option is (a)  Formula weight of calcium phosphate is 310.166g/mol  Formula of calcium…

Q: Chemistry calculate the moles of Al(NO3)3 present in 447ml pf 4.23 M AI(NO3)3

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Q: Hi, I am doing a practice test and need to check my answers. All of this is for Chem 101   Please…

A: Answer of given questions are as follows :

Q: Compound X has a molar mass of 104.01 g mol and the following composition: element nitrogen fluorine…

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Q: Fill in the name and empirical formula of each ionic compound that could be formed from the ions in…

A: Empirical formula: it can be define as the simplest whole number ratio of different atoms in the…

Q: Some of the carbon atoms that you consume from your food are exhaled out as carbon monoxide from…

A: The food we consume react with oxygen to form carbon dioxide and water. This carbon dioxide is…

Q: QUESTION 9 What is the molar mass of butanol (C 4H 9OH)? O a. 30.03 g/mol O b. 193.05 g/mol O c.…

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Q: Question 3 A 7.300 g sample of aluminum combined quantitatively with elemental selenium to form a…

A: Given Amount of Aluminum combined = 7.300 g Amount of compound = 39.35 g M (Al) = 26.98 g.mol-1 M…

Q: Monosodium glutamate was found to contain 35.51% C, 5.15% H, 37.85% O and 13.6% Na, and 8.26% N.  It…

A: Molar mass=169 g/molNumber of Carbon present:  C=35.51%the amount of carbon-35.51% means:      100 g…

Q: For the following reaction, if I start this reaction with 305.5 g potassium bisulfite and an excess…

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Q: and 61.2% , and has a molar mass of 348 g/mol. olecular formula: Submit Answer Try Another Version 3…

A: First convert mass into mole by dividing molar mass Then divide least value of mole to all values of…

Q: Sue adds 1.78 grams of sugar, C12H22O11 to her coffee every morning before work. How many moles are…

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

Q: What is the percent (%) composition of hydrogen (H) found in (NH4)2SO4? O 7.01 % 48.7 % O 6.06 % O…

A: Percent composition of hydrogen is given by Percent composition of hydrogen=Mass of hydrgenMass of…

Q: = O CHEMICAL REACTIONS Finding a molecular formula from molar mass and elemental... 1 Compound X has…

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Q: 3. How many moles of H are there in 26.0 g of H₂0? How many molecules of CH4 are there in 25.5 g of…

A: Given , (4) Mass of water = 26.0 g

Q: How many grams of LizN can be formed from 1.75 moles of Li? Assume an excess of nitrogen. 6 Li (s) +…

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Q: The empirical formula of benzene is C, H,, and its molar mass is 78.114 g/mol. Use the empirical…

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Q: Answer the following questions. a. How many oxygen atoms are in 2 formula units of Na3PO4 7H₂O? b.…

A: Note: Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: How many moles of hydrogen are in 3.06 x 103g of glycine , C2H5NO2?

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Q: There are molecules of methane in 0.123 mol of methane (CH 4).

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Q: 16.A hydrocarbon has the following centesimal composition: 17.24% hydrogen and 82.74% carbon. The…

A: Given that,  Molar mass of unknown compound = 58 g/mol % composition of Carbon in unknown compound =…

Q: Question 2 What volume (in mL) would 3.98x1022 Br₂ molecules occupy? The atomic mass of Br = 79.904…

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Q: How many moles are there in 5.06g of Sulfur? O 1.58 moles O 0.5 atoms O 0.158 moles O 0.158…

A: Mass of S = 5.06 g Molar mass of S = 32.065 g/mol   Moles of S = Mass of S/Molar mass of S Moles =…

Q: QUESTION 30 Calculate the mass/mass percent of 8.46 g SrCI, in 117.0 g of water. O 6.74% O 7.23% O…

A: 1- First calculate the total mass of the solution : Mass of the solution = [ Mass of the solute +…

Q: The molecular formula of aspirin is C9H8O4. How many aspirin molecules are present in one…

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Q: What is the formula mass of Propane (C3Hg)? O 44.1 amu O 65.6 amu O 92.4 amu O 112.8 amu O 164.8 amu…

A: Note:- As per bartleby guidelines, I need to solve the first question in case of multiple questions.…

Q: Two hypothetical ionic compounds are discovered with the chemical formulas XCI2 and YCI2, where X…

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.