What is the mass of 1 mole of zinc atoms? (the values may be rounded differently than your periodic table) O a 30.97 g 40.08 g 55.85 g 65.39 g 0000

Q: Calculate the mass in grams of each elemental sample.(a) 1.32 * 1020 uranium atoms(b) 2.55 * 1022…

A: Mole is defined as the ratio of given mass and molar mass. The unit of mole is mol. It is utilized…

Q: Using the periodic table for this course (Chem 100 Periodic Table.pdf ), which substance contains…

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Q: 3. What mass of Al contains the same number of atoms as 3.0 g Pb7 a. 23 g b.0.014 g C. 3.0g d. 0.39…

A: 3. mass of Pb = 3.0 g molar mass of Pb = 207.2 g/mol moles of Pb = 3.0 g / 207.2 g/mol…

Q: A sample of CH2F2 with a mass of 19 contains atoms of F. O 2.2 x 1023 O 9.5 9 3.3 x 1024 4.4 x 1023…

A: The molar mass of C = 12g/mol The molar mass of H = 1g/mol The molar mass of F = 19g/mol

Q: There are ..... atoms of carbon in 12.77 g manganese (III) oxalate.

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Q: What is the mass of a 12.56L sample of carbon dioxide? O A. 17.9 g о В. 8.9 g O C. 4501 g O D. 24.7…

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Q: The atomic weight of bromine is 79.904, yet no atom of bromine weighs 79.904 amu. Why is this true?

A: Given : The atomic weight of bromine is 79.904, yet no atom of bromine weighs 79.904 amu.

Q: How many carbon atoms are in a pure diamond (all carbon) with a mass of 52.00 mg? A. 4.330 x 103 O…

A: Given: Mass of carbon = 52.00 mg = 52×10-3 g (since 1 g = 103 mg) Atomic mass of carbon = 12 g/mol

Q: A compound is composed of phosphorus and hydrogen. The mass ratio is 10.2 g of phosphorus to 1.00 g…

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Q: Which of these statements is FALSE about the mole? O a. 1 mole is equal to 6.022 x 10 23…

A: Since you gave posted multiple questions, we are entitled to answer the first only.

Q: How many atoms are in a 10.0 g sample of titanium (Ti)? O a. 5.06 x 1026 O b. 1.26 x 1023 C. 2.86 x…

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Q: Verify that the atomic weight of lithium is 6.94, given the following information: 6 Li, mass =…

A: Given,  Percent abundance of 6Li = 7.50% Mass of 6Li = 6.015121 amu Percent abundance of 7Li =…

Q: 9. There are 1.5 x 1023 atoms in 2.5 moles of zinc. TRUE FALSE Chock it skip

A: Number of atoms in 1 mole = 6.02 x 1023

Q: Common brass is a copper and zinc alloy containing 37.0% zinc by mass and having a density of 8.48…

A: Here we have:Volume of common brass = 115.0 cm3Density of common brass = 8.48 g/cm3As we know:

Q: One mole of copper has a mass of 63.5 grams. Approximately how many atoms of copper are present in…

A: Given  Number of mole = 1 mole  Number of atoms of copper = ?

Q: A student has a sample of zinc that weighs 22.19 g. How many zinc atoms are in this amount of zinc?…

A: The Number of atom present in one mole of an element is equal to the Avogadro's number (6.022×1023…

Q: A pure silver sphere has a radius of 0.886 cm. How many silver atoms does it contain? (volume of a…

A: Calculate the volume of the silver sphere,      Volume of silver sphere = 43 π r3= 43 × 227 × (0.886…

Q: Which sample contains the greatest number of atoms? O 102 g Ag O 189 g Ir O 18 g O O 53 g Fe

A: The number of moles is defined as the ratio of a given mass to molar mass. No. of moles =Given…

Q: 6. How many oxygen atoms are in 225 g oxygen gas? a. 4.23 x 104 C. 8.47 x 10:+ b. 6.84 x 10²4 d.…

A: The Given amount of oxygen gas O2 = 225 grams        the molar mass of O2 = 32 g/mol To calculate…

Q: How many hydrogen atoms are there in 8.75 g of C,H,NO,? Select one: a. 23 4.79x 10 b. 3.22x 1023 с.…

A: Given: Mass of C2H7NO2 = 8.75 g Molar mass of C2H7NO2 = 77.08 g/mol

Q: What is the mass of 1 mole of calcium atoms? (the values may be rounded differently than your…

A: 1 mole of calcium atom means 1 atom of calcium.

Q: how many  atoms of carbon in 12.77 g manganese (III) oxalate.

A: Molecular formula of Manganese oxalate is C2H2MnO4 . 1 molecule of manganese oxalate contains 2…

Q: How many grams of platinum (Pt) contain the same number of atoms as 5.0 g of lithium (Li)? О а. 0.18…

A: Given, Mass of lithium (Li) = 5.0 g Mass (in grams) of platinum (Pt) contain the same number of…

Q: A mystery element has two main isotopes of 62.9300amu and 64.928amu. Their percent abundances are…

A: The isotopes are the elements having same atomic number but different mass number.

Q: CROSOTTODICH Calculate average atomic weight. Calculate the atomic weight for bromine. It has two…

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Q: Calculate the mass of one bromine atom. a. 6.022 x 1023 g O b.4 812 x 1025g O c. 1.327 × 10-22 g O…

A: Atomic mass is defined as the quantity of matter that is present in an atom of element.

Q: How many atoms of sulfur are in this molecule? Fe,(SO,), 4/3 O 1 O 2 O 3 O 4

A: Given molecules,     Fe2(SO4)3  and 4H2O

Q: You have 53 carbon atoms. What is the mass? Which units should you use g/mol or amu? a. 686.58 amu…

A: Answer: No option is correct. The correct answer is 636.53 amu We should use amu unit instead of…

Q: Which of the following contains the most atoms? 24.305g Mg 39.098g K 9.0122g Be 21.62g B

A: One mole of a substance contains 6.022×1023 atoms and the number of moles of a substance can be…

Q: What are the formulas of the following substances? (a) PCI;; Molec. mass = 137.3 amu (b) Nicotine,…

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

Q: How many fluorine atoms are present in 117.99 g of sulfur hexafluoride? O a. 4.865 1024 fluorine…

A: The molecular formula of sulfur hexafluoride is SF6. The mass of sulfur hexafluoride is = 117.99 g…

Q: A brass alloy contains 87.7% copper, Cu, by mass with the remainder of the alloy being zinc, Zn.…

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Q: Tetracarbon dioxide is an unstable oxide of carbon with the following molecular structure: What are…

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Q: How many daL of bromine atoms are in 90 x 1022bromine atoms?  (The density of bromine is 3.1 g/cm3)…

A: To get the answer of this question first we calculate the mass of Br atoms given in the question…

Q: By x-ray diffraction it is possible to determine the geometric pattern in which atoms are arranged…

A: Given that : The edge length of the cube = 0.409 nm The density of silver = 10.5 g/cm3 The molar…

Q: How many ATOMS of phosphorus are present in 8.70 grams of phosphorus triiodide ?  atoms of…

A: Data given: Mass of phosphorus triiodide = 8.70 g Number of molecules of phosphorus triiodide =…

Q: 15. A sample of 1 mole of which of the following contains the greatest number of oxygen atoms? e.…

A: Oxygen atoms:

Q: What is the mass of 1.48 Mol of potassium sulfide (K2S)? A. 12.0g B. 0.0134g C. 195g D. 74.5g…

A: Solution The mole conception could be a convenient methodology of expressing the quantity of a…

Q: 13) A 44.8 g rhodium sample contains how many rhodium atoms? B) 2.74 x 105 atoms A) 2.62 x 1023…

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Q: How many carbon atoms are in a pure diamond (all carbon) with a mass of 52.00 mg? O A. 4.330 x 100 O…

A: Diamond is made up of pure carbon given , mass of diamond =52 mg STEP 1 conversion mg unit to gram…

Q: A sample of TNT, C7H5N3O6 , has 7.97 x 1021 nitrogen atoms. How many hydrogen atoms are there in…

A: The details solution for this is provided below in attach image.

Q: What is the mass in grams of 5.40 moles of lithium? 37.5 1.29 none of the above 6.94 3.25 x 1024

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Q: What mass of NO2 would have the same number of moles of N with 0.402 g of porphyrin, C20H14N4?…

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Q: 5. (. a) 3.68 x 1025 How many nitrogen atoms are there in a 346 g sample of pure ammonia (NH3,…

A: Given : Mass of ammonia = 346 g And molar mass of ammonia = 17.031 g

Q: toms are there in 400.5 grams of Silicon? A V-M. G a. b. 6.77 X 1027 atoms 8.58 X 1024 atoms С.…

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Q: The Cullinan diamond was the largest natural diamond ever found (January 25, 1905). It weighed 3104…

A: 6.023× 10^23 is called Avogadro's number. 1 mole of any substance contains Avogadro's number of…

Q: 10...oclD3D8 Formula: Avg Atomic Mass: [ (Mass)x(% abundance) + (Mass)x(% abundance) + (Mass)x(%…

A: Answer given as follows

Q: Which of the following contains the same number of atoms as in 6.0 grams of carbon? O 6.0 grams of…

A: The correct answer is given below

Q: The total number of atoms is Pb(NO3)2

A: given, Pb(NO3)2   there are three different atoms in this compound Pb, Nitrogen & Oxygen

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.