39. Calculate the number of molecules present in each of the following samples. a. 4.75 mmol of phosphine, PH3 b. 4.75 g of phosphine, PH3 c. 1.25 × 10-2 g of lead(II) acetate, Pb(CH3 CO2)2

Q: A fertilizer is advertised as containing 14.0% nitrogen(by mass). How much nitrogen is there in…

A:

Q: 10. Make the following conversions: (a) 28.4 g S to moles S (b) 2.50 kg Nacl to moles Nacl (c) 42.2…

A: Number of moles = mass ÷ molar mass

Q: Number of atoms of C in 14 moles of CH10 are: O 337.23x10^23 O 24.09x10^23 O 84.31x10^23 O…

A:

Q: 2163 T(K) 1557 Mg₂SiO4 20 40 60 Mole % SiO₂ 80 1873 1543 SIO₂

A:

Q: What is the molar mass (in kg/mol) of carbon tetrachloride (CC14)? 6 17 C CL 35.45 12.01 2. 0.2535…

A: Here we are required to find the molar mass of carbon tetrachloride

Q: inside the front cover of this book to calculate the mass in grams of each of the following samples.…

A: Note : As per our guidelines we are supposed to answer only first 3 subparts of first question.

Q: 41. Calculate the number of moles of carbon atoms present in each of the following samples. a. 1.271…

A:

Q: Br2 hv Cl2 b. 1 mole 1. BH,, THF C. 2. H,0,, NAOH Cl2 4] d.

A:

Q: 39. Calculate the number of molecules present in each of the following samples. a. 4.75 mmol of…

A:

Q: This is the chemical formula for carvone (the chemical that gives spearmint its flavor): C10H14O An…

A: Carvone has folloing molecular formula C10H14O So, 10 moles Carbon contains per mol of oxygen.

Q: determine the numbers of moles or molecules (or formula units) in each sample: A) 34.0 g sodium…

A: The answer to the following question is given as:

Q: Calculate the number of atoms in 12.45 grams of iron. 1.342 x 1023atoms 1.342 x 1022toms 0.223 atoms…

A: Given information, Given mass of iron = 12.45 g Molar mass of iron = 55.845 g/mol Calculate : Number…

Q: g Fe203 Pg Co g Fe g CO2 d mole Fe203 mol CO mol Fe mole CO2 |partides Fe203 molecules CO atoms Fe…

A: The question is based on the concept of chemical reactions. we have to identify and write the units…

Q: A beaker contains 48.948.9 mL of carbon tetrachloride (CCl4CCl4, density is 1.591.59 g/mL).…

A: Volume of carbon tetrachloride = 48.9 mL  Density = 1.59 g/mL  Density = mass ÷ volume

Q: 10. Make the following conversions: (a) 28.4 g S to moles S (b) 2.50 kg NaCl to moles NaCl (c) 42.2…

A: (a) Mass  of S = 28.4 g Molar mass of S = 32.06 g/mol Moles of S = mass of Smolar mass of S  = 28.4…

Q: 4. One mole is equivalent to a. 3.75 g Hydrogen c. 16 g Oxygen b. 14 g Carbon d. 190 g Gold 5. What…

A: 4) Calculate the number of moles of each option-

Q: Number of atoms of C in 17 moles of C4H10 are: O 24.09x10^23 7.06x10^23 O 409.50x10^23 102.37x10^23

A: Number of atoms of carbon  = carbon atoms × moles × NA

Q: What amount in moles is 4.77x10^25 (to the power of 25) molecules?? 1.2.87x10^49 mol 2.79.2 mol…

A: Molecules = 4.77 x 1025

Q: Number of atoms of C in 16 moles of C,H10 are: O 6.64x10^23 385.41x10^23 O 24.09x10^23 O 96.35x10^23

A:

Q: Question is attached

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

Q: How many atoms are in the 156 mL of ethanol? (density = 0.79 g/mL) (Molar mass: 46.07 g/mol)…

A: The molecules that present inside any substance can be determined by calculating the number of…

Q: A sample of NH3 has a mass of 84.06 grams.   Calculate the moles of NH3 in the sample.…

A: Given : Mass of NH3 = 84.06 g

Q: Calculate the number of molecules present in each of the following samples.(a) 0.800 mol acetylene,…

A:

Q: 7 1 mole Fe₂(CrO₂)₂ = g Fe, (Cro),

A:

Q: a. How many molecules of water are present in 3.86 moles of this compound? molecules 22 b. How many…

A: The relationship between number of molecules and moles is  Number of molecules of any compound =…

Q: Calculate the mass (in g) of each sample.a. 5.94 * 1020 SO3 moleculesb. 2.8 * 1022 H2O moleculesc. 1…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: Calculate the number of atoms in 12.45 grams of iron . 1.342 x 1023atoms 1.342 x 1022toms 0.223…

A: The question is based on mole concept. We have to calculate number of atoms of iron.

Q: The moles of Glucose(C6H12O6) in 18 grams of Sucrose is O 342 O 0.01 O 34.2 O 0.1

A: In this question, we want to determine the moles of Glucose. How we can determine you can see…

Q: 6. Which of the following samples contains the greatest number of molecules? A. 1 g phosphorus, P4…

A:

Q: How many molecules of water are made from 8 molecules of H2? molecules

A: Balanced equation for the formation of water from hydrogen and oxygen is as follows. 2H2+O2→2H2O…

Q: 51 Caffeine Caffeine, found in coffee, tea, chocolate, cola beverages is a highly popular stimulant…

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

Q: Number of atoms of Carbon in 18 moles of C4H10 are: 433.58x10^23 7.48x10^23 O 108.40x10^23…

A: The number of moles of a compound can be obtained by Avogadro's number. It can be calculated as…

Q: Number of atoms of C in 10 moles of CAH10 are: O 24.09x10^23 O 240.88x10^23 O 4.15x10^23 O…

A:

Q: Convert 9.83 x 1022 grams of X4Z4 into molecules/formula units of the same compound. (Assume that…

A:

Q: 10. What does Avogadro's number represent? a. the number of atoms in 1 mol of an element b. the…

A:

Q: How many formula units are equal to 1.80 moles of magnesium iodide? Round to two decimal places.  _…

A: Moles = 1.80 moles Molar mass of MgI2 = 278.11 g/mol Formula unit = ?

Q: c) An organic compound consists of carbon, hydrogen and sulfur only. The percentage of carbon by…

A: Given  mass % of C = 30.27 %  total mass of compound = 1.367 g  mass of SO2 = 1.765 g    Required…

Q: What mass of phosphorus is present in 25 g P4S3? A. 14g B. 4.5g C. 11g D. 3.2g E. 100g

A: Since the Atomic mass of P = 31 g/mol and Atomic mass of S = 32 g/mol Hence molar mass of P4S3 =…

Q: (c) An organic compound consists of carbon, hydrogen and sulfur only. The percentage of carbon by…

A: We have to find empirical formula for given compound

Q: Calculate the mass (in g) of each sample.a. 4.5 * 1025 O3 moleculesb. 9.85 * 1019 CCl2F2 moleculesc.…

A:

Q: A 10 gram sample of NaCl will have the same percent composition (percent by mass) of Na and Cl than…

A:

Q: Calculate the number of molecules in 8.21 moles of sulfuric acid (H2SO4). a 4.94 x 1024 molecules b.…

A: Moles of sulfuric acid=8.21 moles 1 mole= 6.023×10^23 molecules

Q: Number of atoms of C in 10 moles of C4H10 are:     240.88x10^23 24.09x10^23 4.15x10^23…

A:

Q: 1) Determine the number of moles in each sample: a) 38.2g sodium chloride b) 36.5g nitrogen monoxide…

A: Interpretation -  To determine the number of moles in each sample - 38.2g of sodium chloride  36.5g…

Q: You have 2.97 x 1025 molecules of water. Find the volume of this in milliliters. Water has a molar…

A:

Q: The sample is analyzed and found to contain three elements, C, H and O.  A 2.147 g sample of the…

A: The given data: The mass of the sample = 2.147 g The mass of the CO2 (g) = 4.297 g The mass of H2O…

Q: Percent Composition 1. Calculate % mass of water in: CUSO4•5H20 Mass of Water = Cuso %3D Mass of…

A: Given: A compound CuSO4 x 5H2O Atomic masses of the elements are, H = 1 O = 16 S = 32 Cu = 64

Q: 51 Caffeine Caffeine, found in coffee, tea, chocolate, cola beverages is a highly popular stimulant…

A:

Q: Part 1 - count the moles, molecules and atoms # of moles # of atoms in each Total # of atoms…

A:

Q: Mass of Sample Moles of Sample Molecules in Sample Total Atoms in Sample 4.59 g C6 H6 g 0.228 mol H2…

A: One mole of any substance contains Avogadro's number of particles such as atoms, molecules. The…

Stereochemistry and Isomerism

Stereochemistry deals with the three-dimensional structure and properties of molecules. It explains the arrangement of atoms and their manipulation within a molecule in a 3D structure. Stereochemistry can be dealt with all types of molecules. Based on the stereochemistry of a molecule, the physical and chemical properties of the molecules vary.