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: Hydrogen fluoride is used in the manufacture of Freons (which destroy ozone in the stratosphere) and…

A: The given chemical reaction is:           ---------(1)

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

A: Moles = mass/molar mass

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: STARTING AMOUNT X Determine the quantity of molecules in 0.150 moles of H₂O. ADD FACTOR x( ) 9.03 x…

A: Avogadro's number = 1 mol =  atoms, ions molecules or particles ----------------------------

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

A:

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.…

A:

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: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

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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: 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: 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: NH3 + O2 → NO + H2O For every 150 g NH3,   Find the mass of NO produced.  Find the mass of H2O…

A: For determining the amount of product, the mole ratio of reactants in a balanced reaction must be…

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)…

A:

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

A:

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

A:

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

A:

Q: TRUE OR FALSE. The value of Avogadro’s number is 6.02 x 1023 g/mol.

A:

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: 009 (part 1 of 4 chemist measured out 8.25 g of copper(II) romide tetrahydrate (CuBr2 · 4 H2O). How…

A: Molar mass of CuBr2.4H2O=295.4151 g/molNo, of Oxygen atoms present in the molecule =4Mass=4×(16…

Q: 2 NH3 + 3 CuO g 3 Cu + N₂ + 3 H₂O In the above equation how many grams of N₂ can be made when 150…

A: The given balanced chemical equation is: 2NH3 + 3CuO → 3Cu + N2 + 3H2O The required mole ratio is: 1…

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

A:

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

A: Number of moles = Mass/Molar mass

Q: MOLES/MOLECULES T04/SO2 If a sample of B10H10Bra is found to contain 1.20 - 1019 B atoms how many…

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Q: Calculate the molar mass of the following substances. Molar Mass = b. Mg3(PO4)2 Molar Mass = c.…

A: Molar mass of given compounds can be calculated as:

Q: Question 4 of 37 Determine the amount in grams of KCI that exists in 20.3 g of a solution that…

A: Weight of solution= 20.3 gm  %KCl by mass = 1.14 %

Q: 5. The sugar in your kitchen has a molar mass of 342.3 g/mol. How many particles are present inside…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

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

A:

Q: Use the following atomic weights and quantities to calculate the overall % yield of benzil. Remember…

A: The objective of the question is to-Identify the formulaIdentify the formula weightCalculate the…

Q: Question 10 How many grams of carbon tetrachloride, CCI4, are needed to produce 4.18 kg of chromic…

A: The given chemical reaction is given as follows,Cr2O3    +         3CCl4       →         2CrCl3…

Q: chemist will use a sample of 30 g of ethanol (CH3CH2OH) in an experiment. In one to two sentences,…

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Q: Convert 0.0361 mol NH4ClO4 to grams

A: Given,  moles of NH4ClO4 = 0.0361 mol  to calculate : grams of NH4ClO4

Q: Calculate the number of moles containing each of the following. 2.30×10232.30×1023 molecules of…

A: * 22.4 L volumeat STP=1 mole.       22.4 L volumeat STP = molar mass.mass of compound = volume…

Q: 2.50 moles of CH4 molecules contain ___ moles of H atoms. 1.51 x 10^24 0.625 5.00 10.0 2.50

A: . • The values provided in the question are:-        i) Number of moles of CH4 = 2.50 mol    • We…

Q: Number of molecules are Contained in ¥5,0g O is ? 23 6,022 ye 1o malecules 24 malecules mole cules

A: 1 mole of any substance contains Avogadro's number of molecules. Avogadro's number = 6.022×1023

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".