Calculate the mass in grams of one mole of each of the following (the mass of a single item is given in parentheses): electrons (9.10938 * 10 - 28 g), protons (1.67262 * 10 - 24 g), neutrons (1.67493 * 10 - 24 g), atoms of carbon-12 (1.992646 * 10 - 23 g), and doughnuts (74 g). Compare the mass of one mole of carbon-12 atoms to the sum of the masses of the particles that it contains. If the doughnut mentioned in this question were made entirely of carbon, how many atoms would it contain?

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A: First calculate the percent abundance of Ag-109.

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A: Consider the given information about quartz is as follows; One molecule of quartz contains = 1 atom…

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Q: Calculate the mass in grams of one mole of each of the following (the mass of a single item is given…

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Q: a) How many electrons are necessary to produce a charge of -1.2 C? Express your answer using two…

A:

Q: A 45.62-gram sample of calcium hydrogen sulfate [Ca(HSO4)2] would contain how many total atoms? Is…

A: Answer:- This question is answered  by using the simple concept of calculation of total number atoms…

Q: . Suppose you have a sample of sodium weighing 14.50 g. What mass of potassium would you need to…

A: Atomic mass of sodium=23 Atomic mass of potassium=39 Number of mole=given mass/molar mass So,…

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A: Let us assume that there is 100 g of a compound. Hence it contains , Mass of carbon = 100 g of…

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A: Boron has two isotopes which are B-10 and B-11. It is given that the abundance of B-11 is x and for…

Q: On earth, tin has 10 different stable isotopes. The heaviest, 12Sn makes up 5.80% of naturally…

A:

Q: Using scanning tunneling microscopy, scientists at IBM wrote the initials of their company with 35…

A: 1 mole of xenon = 131.293 gm 1 mole of xenon = 6.022 × 1023 atoms. 6.022 × 1023 atoms of xenon have…

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Q: The natural isotopes of boron have masses 10.0129 and 11.0093 amu, with relative % abundance of 19.9…

A: Given: Mass of one isotope is 10.0129 amu. Mass of second isotope is 11.0093 amu. Relative %…

Q: In a test of the Law of Multiple proportions, two different compounds composed of elements A and B…

A: For compound X B/A = 2.33/1.00 = 2.33   For compound Y B/A = 5.83/1.00 = 5.83   Divide these two…

Q: How many grams of Mg are there in a sample of Mg that contains 6.21x1023 atoms? grams

A: The amount of Mg present can be calculated as

Q: The atomic masses of chlorine-35 (75.780%) and chlorine-37 (24.220%) are 34.969 amu and 36.966 amu,…

A: To calculate : average atomic mass of Cl

Q: 1. Calculate the mass of each sample. a. 1.05 x 10 26 atoms of neon, Ne(g) b. 8.72 x 1021 molecules…

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Q: Average atomic masses listed by IUPAC are based on a study of experimental results. Bromine has two…

A: Given The atomic mass for given two isotope are 78.9183 amu and 80.9163 amu. The given values of…

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A: The question is based on the concept of elemental analysis. we have to calculate empirical formula…

Q: How many moles of mercury are there in 176.1 grams of mercury? 0.75 Question 4 What would 6.2E23…

A: Mole is the unit that is used to represent the amount of substance. One mole has 6.022 × 1023 number…

Q: A sample of Cs weighs 99.5 grams. Will a sample of S that contains the same number of atoms weigh…

A: 1 mole of any substance = 6.022 x 1023 atoms (Avogadro number)   No. of moles of a substance can…

Q: It is well known that the element magnesium has three naturally occurring isotopes. Mg-24 represents…

A: It is clearly indicates that the Mg-24 posses a natural abundance of 79% along with other isotopic…

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Q: How many atoms are contained in each of the following? (Please enter your answers in scientific…

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Q: - Compare Two compounds that contain copper and chlorine have the following masses: Compound A:…

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Q: Calculate the mass (in grams) of a tungsten atom. A. 1.107 x 10 - 26 B. 1.661 x 10 - 24 g C. 3.054 x…

A: Molar mass of tungsten = 183.84g/mol

Q: 6. This Magnesium top by ForeverspinTM weighs merely 6g. a) Write the weight of this top in…

A: The question is based on mole concept. We have to determine number of particles present in 6 gram of…

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Q: What is the mass of magnesium fluoride that contains 7.29 × 1024 F atoms?   Relative atomic…

A: Given,  The mass of magnesium fluoride that contains 7.29 × 1024 F atoms is:

Q: 1) What is the mass in grams of 6.86x10^23 atoms of manganese? 2)How many manganese atoms are there…

A: 1)  Number of moles of manganese = number of atoms (given) / number of atoms in 1 mole number of…

Q: How many electrons are necessary to produce a charge of -1.2 C? Express your answer using two…

A: Given that , The charge produced = -1.2 C

Q: How many grams of He are there in a sample of He that contains 8.76x1023 atoms? grams

A:

Q: The mass of an average neon atom is 20.2 atomic mass units. One atomic mass unit is equal to…

A: The term atomic mass unit can be defined as the unit of mass which is used to express the atomic or…

Q: How many copper atoms would there be in 70.3 milligrams of copper

A: Mass of Cu atom = 1.06 × 10-22g  Molar mass of Cu = 65.55 g/mol  70 mg Cu = 70 × 10-3 g Cu

Q: The mass ratio of sodium to fluorine in sodium fluoride is 1.21:1. A sample of sodium fluoride…

A: Given : Mass ratio of sodium to fluorine in sodium fluoride = 1.21 : 1  And mass of sodium produced…

Q: Calculate the mass in grams of 1 neutron given the following conversion factors: 1 n° = 1.008665…

A: Given  1n0 = 1.008665 amu 1 amu = 1.660538 x 10-24 g

Q: 2.2. Boron has two naturally occurring isotopes, 1 B and "B. We know that 80.22% of its atoms are…

A: Answer: 2.2) Atomic weight of 10B 10.0084 u 2.3) Average atomic mass of Boron 10.81 g

Q: Based on the law of conservation of mass, if the total mass of reactants is 22 g, what will the…

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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: 2. What number of gold atoms are in one mole of gold atoms? A 196.97 ) B 6.022 x 10²3 C 79 ) D 1.66…

A: Given,  The number of gold atoms in one mole of gold atoms is:

Q: 2.31 Use the following table of abundances and masses of five naturally occurring titanium isotopes…

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Q: How much money, in dollars, does one mole of nickels represent?   If this amount of money were…

A: A Nickel is a currency coin mainly used in United States of America. The value of one nickel coin is…

Q: 100% Normal text Oxygen 12 ... 3. The atomic masses of elements are generally not whole numbers.…

A: Concept is based on isotopes:     As per our guideline we have to answer first question only.

Q: Argon has three common isotopes, with the masses and isotopic abundances shown below: Argon-36 --->…

A:

Q: How many atoms of cobalt equal a mass of 58.93g

A: Molecular mass of cobalt = 58.93   Number of moles can be shown below

Q: Calculate the mass (in grams) of each of the following species. (Enter your answer to four…

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Q: Please use the precision of the values in the periodic table link to determine the correct number of…

A: The atomic mass of  He = 4.003 amu The atomic mass of  Fe = 18.998 amu The atomic mass of  Na =…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.