Complete each row with proper significant figures Substance  Molar mass, g/mol Mass in grams Number of moles Count of formula units BaBr2 297.14 2.40     P2S5 444.56   0.034   Ni3(PO4)2 366.02     5.5x1025 C6H5OH 94.11 10

Q: A. What is its empirical formula? (Enter 1 if the corresponding subscript is 1.) C 16 H9 N4 Na 3 S2…

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Q: How many chlorine atoms are present in 0.778 mol of Cl,? O 4.69 x 1023 atoms 1.56 atoms O 9.37 x…

A: Answer: 9.37 × 1023 chlorine atoms are present in 0.778 mole of Cl2

Q: How many moles of propylene (C3H) are in 25.0 of the substance? g

A: Moles = mass/molar mass

Q: Which sample contains the greatest number of moles of ClCl? Which sample contains the greatest…

A: Option. A is correct  Mole of Cl= total mole of Cl×total atom if Cl in compound

Q: Mass of H2C2O4•2H2O = 1.3245 grams  Molar Mass of H2C2O4•2H2O = 126.07 how many moles of…

A: Number of moles is given by the ratio of mass of the substance to that of the molar mass.

Q: The flow chart in figure 2.13 of your textbook summarizes how to convert from mass to moles to…

A: The conversion of quantity from one unit system to another unit system is known as unit conversion.…

Q: How many molecules of oxygen are in 150 g of oxygen? 05.6 x 1024 O28х 1024 О5.6 x 1022 O1.4 x 1024…

A: Given: Mass of Oxygen= 150g To Calculate: Molecules of  Oxygen

Q: For the molecular compound bon dioxide, what would you ultiply "molecules of CO," by to get the…

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Q: How many atoms are contained in 0.98 moles of iron (Fe)?

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Q: complete the following table for tnt trinitrotoleune

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Q: A sample of Water, H2O, has a mass of 55 grams. Determine the number of moles in the sample.

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Q: 19 How many moles are there in 2.00×10 Molecules of C Cly?

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Q: Number of Molecules or Number of Atoms or lons 2.379 x 10 ^23 Number of Substance Mass (g) Moles…

A: Number of moles = given mass/molar mass Also 1 mole = 6.022 × 1023 atoms, molecules, formula units…

Q: How many atoms of zinc are present in a sample that contains 7.79×102 grams of zinc?The molar mass…

A: The mass of one gram atom is equal to the mass of 6.022× 1023 atoms of any element. Thus, it is…

Q: Data Table 1. Moles and Atoms in Common Items Item Aluminum Cup Glass Stirring Rod Cotton Ball A.…

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Q: How many atoms are in 2.50 moles of SiO₂? 5.02 x 10²3 atoms 7.53 x 1023 atoms 3.01 x 10²4 atoms 1.52…

A: Given -> Moles of SiO2 = 2.50 mole

Q: D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 26) 1.54 x 10° moles of Zn…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Convert 0.2377 grams of carbon into moles. 0.01718 molescarbon 0.01181 molescarbon 0.008229…

A: The mass of carbon given = 0.2377 g Molar mass of carbon = 12.0107 g/mol

Q: 17) How many molecules of water are present in 54.7g of water? 5.94 x 10 26 molecules 1.98 x 10 23…

A: Since number of molecules = number of moles X Avogadro's number  And number of moles = mass / molar…

Q: Some of the formulas below could be either empirical or molecular formulas; however, some of them…

A: Answer:Empirical formula of a compound gives the simplest integer ratio of the number of different…

Q: STARTING AMOUNT X Determine the quantity of moles of propylene (C3H6) in 25.0 ADD FACTOR x( ) 25.0…

A: Given mass of C3H6 = 25.0 g Molar mass of C3H6 = 42.09 g/molAs we know ,No. Of moles =

Q: What amount (moles) is represented by each of these samples? 32.2 mg caffeine, CaH10N4O2 Amount =…

A: Given:  1) mass of caffeine= 32.2 mg = 32.2 × 10-3 g = 0.032 g  2) molecules of ethanol= 4.58 × 1021…

Q: A chemist weighs 50.0 grams of solid NaOH. a) How many moles of NaOH are in the sample? [ Select ]…

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Q: Given 70 g of CI2, how many particles of Br2 is produced? Cl2 + 2KB → 2KCI + Br2 O 6.02 x 1023…

A: First calculate moles of Cl2. Then use mol to mol ratio to calculate moles of Br2 and use relation…

Q: molecules CO₂ 15 mol CO₂ 7. How many atoms of oxygen are in 1.25 mol of NaNO? 03 = 6.022x1023 1.25 X…

A: 7) Given, moles of NaNO3 = 1.25 mol Number of Oxygen atoms = ?

Q: What amount of moles is represented in each of the following samples?a. 150.0 g Fe2O3 b. 10.00 mg…

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Q: How many atoms of gallium are present in a sample that contains 75.1 grams of gallium?The molar mass…

A: Number of atoms can be determined by multiplying the number of moles with Avogadro number.  For that…

Q: Table 1. The relationship between mass, mole and number of particles Formula of Molar mass Mass (g)…

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Q: How many zinc (Zn) atoms are contained in 5.16 moles of Zn? Is this the correct answer including the…

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Q: How many moles (of molecules or formula units) are in each sample? 19.3 g NO2 Express your answer…

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

Q: S + 6 HNO3 --> H₂SO4 + 6 NO2 + 2 H₂O In the above equation how many grams of water can be made when…

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Q: 5) How many grams are there in 7.50 x 1023 molecules of H₂SO4? 23 "2002g/mo! 7.50 X 102³ molecules…

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Q: The molar mass is 876.16 g/mol.    If you have 5.0 mL of this oil, how many moles does it contain?…

A: Given --> Density = 0.79 g/mL  Molar mass = 876.16 g/mol  Volume = 5 ml  Density = Mass / Volume…

Q: Writing Empirical Formulas from Chemical Formulas

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Q: Convert 1.5 x 1023 molecules SO2 to moles.

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Q: 25. How many particles are present in 8.0 moles of silver? 1.6 · 1024 particles 3.0 · 1023 particles…

A: Given: The number of moles of silver is 8.0 mol. The number of particles present in the "n" number…

Q: How many hydrogen atoms are contained in 3.64 g of PtCl2(NH3)2? O4.90 x 1022 O9.79 x 1022 О4.38 х…

A: Molar mass of PtCl2(NH3)2 is given by  Molar mass = Atomic mass of Pt + Atomic mass of Cl X 2 +…

Q: 3. Calculate the percent by mass of the second element in the properly written formula. Example, for…

A: We need to find the percentage by mass of the second element in the properly written formula of the…

Q: Question 11 How many moles of carbon are present in 1.37 x 10 25 atoms of carbon? O 8.25 moles O…

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Q: If you were given 14.8 g of C3H8 and 3.44 g of 02, determine the mass (in grams) of the excess…

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Q: please Answer this question in the same format thats in the picture below on paper, answer…

A: Number of moles = Mass/Molar mass

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".