Which sample contains the greatest number of atoms? (No calculations necessary). Group of answer choices 68 g 31Ga 70 g 34Se 34 g 15P 190 g 79Au

Q: 33. How many hydrogen atoms are in 4 molecules of isopropyl alcohol, C;H-0? А. 2.4 x 1023 atoms of H…

A: Given, 4 molecules of isopropyl alcohol, C3H7O   Required,                Number of hydrogen atoms…

Q: Which one among the following statements is correct? A 12.01 g of C contains 6.022 x 10 23 atoms…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: What is the mass of 4.50 x 10- Cu atoms? Multiple Choice 7.47 x 10 amu 7.47 x 10 g 4.75 g 63.55 amu

A: Calculation of mass of cu atom:

Q: OregonState-Overview A CHEM 101 Homework 101 Chem101 M Inbox (59)- ketelk@oregonsta x A…

A: Given Compound A mass of sulfur = 15.7 g mass of fluorine = 18.6 g

Q: What is the mass % of carbon in dimethylsulfoxide (C2H;SO)? (C= 12.011 amu, H = 1.008 amu, S =…

A: The % of carbon in dimethylsulfoxide (C2H6SO) is: Atomic masses of C = 12.011 amu, H = 1.008 amu, S…

Q: If 26.98 grams is the mass of 1 mole of Aluminum, 26.98 grams =1 mole of Al 13.49 grams = 0.5 moles…

A: Mole concept relates the number of moles with the molar mass and mass of the substance. Just like…

Q: A compound contained 4.6g Na, 2.8g N, 9.6g O. Find the empirical formula. (RAM data Na = 22.99, N =…

A: In empirical formula problem first we determine mole ratio of given atom

Q: Calculate the number of atoms in each sample (express using 4 sigfigs) 34.782g S  12.326g Pt…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: Calculate the number of atoms in each element. a. 25.8 g of Hg b. 0.0340 g of Zn c. 150 g of Ar d.…

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Q: mat Tools Add-ons Help Last edit was 8 minutes ago ormal text Trebuchet . IUA 12 %3D 5) How many…

A: GivenFor question 5Mass of N = 10.5 gFor question 6Number of atom of nickel = 6.6 x 1017

Q: Determine the mass in grams of 2.25 x 1021 atoms of copper. (The mass of one mole of copper is 63.55…

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Q: 59 100- 80- M(102) 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 m/z Relative Abundance

A: Mass spectra helps us to analyse different possible fragments in a given organic compound by various…

Q: Calculate the grams of nitrogen in 23.4 g of Ca(NO3)2.  2. Calculate the mass percent of chlorine…

A: The given data : 1.The mass of the Ca(NO3)2 = 23.4 g To determine = The mass of nitrogen 2.…

Q: Use the periodic table from an alternative universe below to answer the questions! Symbo 1A 2A 8A…

A: Using the periodic table and the group in which the elements belong, The valency of : K is +1 O is…

Q: Calculate the percent error between your average experimental value and theoretical value for the…

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Q: What is the mass of 4.50 x 1022 Cu atoms? Multiple Choice O 747 x 102 amu O 747 x 1029 O 475 g O…

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Q: What is the mass percent (%) for K in K2CrO4? A. 26.48 B. 38.09 C. 85.48 D. 40.66 E. 56.48 I…

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Q: An experimental determination of the percent abundances of the three isotopes of magnesium is given…

A: Given data:

Q: What do the peaks of the mass spec of C6H10 show?

A: The structure of the unknown molecules can be obtained by analyzing their spectroscopical results…

Q: 15- Two compounds formed by iodine and fluorine showed the following data, for a fixed mass of…

A: GIVEN: The mass of I in compound I =  1.0000. The mass of F in compound I =  0.1497. The mass of I…

Q: Jsing the general formula for a 1.60), calculate the following: a. The number of hydrogen atoms E b.…

A: By using general formula of cyclo alkane to answer the following questions--

Q: How many carbon atoms are there in 10 Ibs of sugar, CH,,0̟,? 22 11 Select one: a. 159 atoms O b. 8.0…

A: Mass of C12H22O11=10lbs Formula used- 1 lbs=4.54kg 1kg=1000g Mole=mass/molar mass No of carbon…

Q: isotope 0-16 % abundance relative mass mass contribution 99.7572 15.9949146 0-17 0.0381 16.9991317…

A: Average atomic mass is the average of atomic masses of all the isotopes of an element found in…

Q: How many atoms are in 48.4 grams of Pb? Atomic weight of Pb=207.20

A: Given data is as follows: The mass of Pb = 48.4 g The atomic mass Pb = 207.20 g/mol

Q: Circle the best correct answer for the following multiple choice questions: 1) How many aluminum…

A:

Q: One mole of which substance contains a total of 6.02 x 10 to the power of 23 atoms? A) Li B) NH3 C)…

A: This question is based on the mole concept principle. In this question,  we have to calculate the…

Q: CPM eBooks - CCA. Use the periodic table from an alternative universe below to answer the questions…

A: Mass of M=60 grams Mass of MAx3=?

Q: 18. A compound with molecular mass of 74.1 g/mol is found tO contain 64.8% carbon, 13.5% hydrogen,…

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Q: Do you round before or after multiplying the molecular mass of an element for example I multiplied…

A: Given  Molar mass of Carbon =12.011  Then Molar mass of  C12 =?

Q: 1.75 x 1025 selenium atoms contains ____ moles of selenium. Report your answer to 3 s.f. (hint: this…

A:

Q: b. U.00004042 fng 4.042 x 10-5 mg Which sample of element is heavier? Show appropriate calculations…

A: Given: The moles of N2 = 2 moles. The moles of Fe = 1 mol. The moles of F2  = 1.5 moles.

Q: Questic 10 1 pt 9 C = O 282 K O 9 K О 273 K O-284 K Previous Next Quiz saved at 12:50pm Submit

A: Temperature is a very important parameter in any chemical process.It has a huge effect on the…

Q: If a compound is made up of carbon and hydrogen only, what is the mass of its sample that contains…

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Q: Calculate the average atomic mass of the element iron (Fe) using the following data: Isotope Iron-54…

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Q: Find the number of representative particles in each of the following:show complete solution pleasee…

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Q: Determine the number of atoms in a sample of 2.26 g Hg. O 6.78 x 10 21 atoms O7.53 x 10 22 atoms O…

A: Number of moles of a chemical element or a compound is used to measure the amount of element or…

Q: A fictitious element X has a molecular weight of 9.46 g/mol. If the volume occupied by one atom of…

A: We have given that the a fictitious element X has a molecular weight of 9.46 g/mole and the volume…

Q: Which of the following would contain the highest number of atoms? Group of answer choices 10.5 g C…

A: From the given compounds which will have highest number of atoms has to be given.

Q: Which of the following compounds would contain 12 atoms of oxygen? Assume that the all numbers…

A: A  molecule is formed by a number of atoms. These atoms either connects  directly with the central…

Q: 17. How many atoms of silver are present in a 75 gram pure sample? c. 1.34 x 10-20 d. 4.87 x 10-27…

A: Since you have posted multiple questions , as per guidelines we can answer one per session . If you…

Q: The fictitious element concordium (Cn) has two naturally occurring isotopes: 65C (64.8913 u) and 69C…

A: The solution is as follows :

Q: Calculate the molar mass for the following atoms/molecules. (SHOW WORK AND ROUND FINAL ANSWERS TO 2…

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Q: Calculate the percent error between your average experimental value and theoretical value for the…

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Q: 2. Sakura is launching a new line of porcelain merchandise. She wants to figure out how many grams…

A: Sakura is launching a new line of porcelain merchandise. She wants to figure out how many grams of…

Q: In the following How many Fe atoms How many O atoms How many S atoms Fez(SO4)a

A: The number of atoms present in Fe2(SO4)3 has to be given.

Q: Determine the a) natural abundance of isotope 1 and the b) average mass of the element (in amu) and…

A: Every atom in periodic table has some atomic mass and atomic number. When atomic number of two…

Q: Which of the following atomic symbols is incorrect? a) 16C14 b) 32P15 c) 39K19 d) 17 e) N14

A:

Q: Mass of magnesium before is 0.33g Mass of magnesium after is 0.49 g   Identify major sources of…

A: Interpretation -  To explain about how the mass of magnesium is differ too much before weighing…

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

Q: Smallest Largest 1A H 2A neon Li Be Na Mg 38 4B 5B 6B 7B8B K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Rb…

A: Given element are Neon,  Krypton, helium, argon We have to arrange the given  atom in increasing…

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.