8. One mole of an atom of a substance is equal to the: a Gram atomic mass of the element b Gram molecular mass of the element C Atomic number of the element d None of the above Check it skip GET A HINT 2 SCRATCHPAD Improve this

Q: A 23.6 g sample of CaSO, is found to contain 6.95 g of Ca and 11.1 g of O. Find the mass of sulfur…

A: To find mass of sulfur, first find out mass of S in 23.6g sample. Then use the relation to calculate…

Q: The radius of a lead atom is 175 pm. How many lead atoms would have to be laid side by side to span…

A: Given: Radius of each lead atom = 175 pm = 175 X 10-12 m                          (Since 1 m = 1012…

Q: Part A A pure titanium cube has an edge length of 2.77 in . How many titanium atoms does it contain?…

A: The volume of a cube is defined as the cubic product of the length of one side of the cube. The…

Q: A sample of hydrogen contains 35.3 grams. 1. How many moles of H atoms are there in the sample? 2.…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: How many He atoms are there in a 105 gram sample of He? atoms Submit Answer Try Another Version 1…

A:

Q: 2. Cl- F- 16 0-2 35 19 8 17 Number of Number of Protons=. Number of Protons=_ Protons= Number of…

A: Any element of the symbol  xAy the number of protons and electrons is the same as the atomic number…

Q: Find the molar mass (M) for the following chemical species, to 2 decimal places. a) Strontium metal…

A:

Q: The mass of a single nickel atom is 9.75x10-23 grams. How many nickel atoms would there be in 84.0…

A: Given ->  Mass of single nickel atom = 9.75 × 10-23 gram  Total mass of Ni = 84.0 milligram

Q: Unit 4 Study Guide Directions: Complete on a separate piece of paper. OH 1. Calculate the percent…

A: Percentage composition is the mass of one element from total mass of the compound. It is expressed…

Q: How many Be atoms are there in a 83.0 gram sample of Be? atoms Submit Answer Try Another Version 1…

A: The number of moles of a substance is calculated by the formula: Moles=Given massMolar mass

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: On earth, tin has 10 different stable isotopes. The heaviest, 124 Sn makes up 5.80% of naturally…

A: Given:124Sn (Tin-124) has 5.80% of naturally occurring tin atomsThe mass of the natural sample of…

Q: QUESTION 4 Carbon has six protons and six neutrons. Its mass number is 3. 0 6 O 12 O 36 -

A: Given that , No.  Of Protons = 6 No. Of Neutrons=6

Q: How many atoms are in 2Cu3(PO4)2

A: Total number of atoms present is obtained by adding together all atoms present in compound.

Q: Determine the number of atoms in 21.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99…

A: Number of Sodium atoms can be calculated as follows -

Q: 26 27 30 Question 1: Atom X has 3 isotops: XX, and X what is average atomic mass of X ? 26 27…

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Q: Please correct answer and don't use hand rating

A: To write the symbols for the given isotopes in the format similar to the examples in Exercises 2.15…

Q: Gram molecular mass of the element

A: Molecular mass: It is the summation value of all the masses of all the atom present in that…

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: What would you multiply "atoms of zinc" by to get the units "moles of zinc"? (number) (unit) atoms…

A: One mole of any substance contains 6.023 x 1023  atoms/ ions/particles/molecules of that substance.

Q: A sample of Al2(SO4)3 contains 14.2 g of oxygen, find the number of moles of Al2(SO4)3 1.57 mol…

A:

Q: how to find how many electrons given the mass of a sample and the known amount of atoms in the…

A: Given that the mass of the sample and the atoms in an element are known.  From that the number of…

Q: How many Kr atoms are there in a 12.7 gram sample of Kr ? atoms Submit Answer Retry Entire Group 8…

A: Given mass of sample of Kr = 12.7 g

Q: e.) Light travels 186 000 miles / second. How long is a light year in meters? (1 light year is the…

A: 3. e.) Given: Light travels 186 000 miles/second. First determine the number of seconds value in one…

Q: Signature of a person increased the mass of paper by 1.2 grams with lead pencil. How many atoms of…

A: Given that Mass of C=1.2gram Molar mass of C=12g/mol No. of atoms of C=?

Q: 1. What is the mass of 1.53x1024 atoms of helium? grams 2. How many helium atoms are there in 46.4…

A: Number of moles is the ratio of given mass of the substance to the molecular mass of the substance.

Q: Choose the letters that apply: In the periodic table, where Carbon is 12, it is stating that: a.…

A: In the periodic table, where Carbon is 12, it is stating that:

Q: b. Using the average atomic mass of the element, calculate the number of atoms present in 1287.3 amu…

A: We have given,  Tungsten= 1287.3 amu  Manganese= 219.76 amu  We need to determine the number of…

Q: 7. K,CO, # of molecules: # of elements: Name of element: # of atoms Total # of atoms: The #3 is a…

A: Elements: It is the basic or simplest form of a substance and cannot be broken down further into…

Q: Atoms in Element 3 Atoms in Total Atorns Total Atoms in Element 2 Molecule Atoms in Element 1…

A: Molecules are formed by constituent atoms arranged in specific ratio.

Q: Use the References to access important values 1. What is the mass of 9.23x1023 atoms of barium? 2.…

A:

Q: Determine the number of moles in 2.66 x 1022 formula units of potassium iodide.

A: 1 mol contains 6.022 × 1023 formula units  1 mol contains 6.022 × 1023 atoms

Q: Calculate the number of atoms there are in a sample of aluminum that with a mass of 81g

A: Given that:  Mass of Aluminium(Al) = 81g  Molar mass of Aluminium = 27g/mol So, moles of Al =…

Q: The mass of a single chromium atom is 8.64×10-23 grams. How many chromium atoms would there be in…

A: We know 1 mg = 1 x 10-3g.  So, 237mg means 237 x 10-3g

Q: Determine which statements are consistent with Dalton's atomic theory. Consistent Answer Bank Atoms…

A: Atom consist of small particles. In an atom, there is nucleus at the center and electrons are…

Q: How many moles of nitrogen are in 3.0 moles of N2H4? A. 3.0 mol N B. 5.0 mol N C. 12.0 mol N D. 6.0…

A: Given: 3 moles of N2H4 (hydrazine)

Q: How many grams of Zn are there in a sample of Zn that contains 4.33x1023 atoms? grams

A: Using molar mass of Zn, grams of Zn present in a sample of Zn can be calculated.

Q: A 2.25 mol sample of an element has a mass of 51.8 g. What is the element?

A:

Q: What is the average mass of a single phosphorus atom in grams? mass: TOOLS x10

A: The atomic weight of Phosphorus atom (P) = 30.974 g/mol  1 mol means 6.022 × 1023 atoms  ? mol means…

Q: A fictitious element X has an average atomic mass of 122.397 u. Element X has two naturally occuring…

A: According to the question, The average atomic mass of the element X = 122.397 uThe mass of an…

Q: How many grams of gold are there in 0.413  moles of gold?

A: Given: Moles of gold = 0.413 mol. Atomic mass of gold is 197 g/mol.

Q: how many atoms are in copper pipe that weigh 8.25g

A: Given that the mass of copper pipe = 8.25g We need to find the number of atoms.

Q: 15 How many atoms of Aluminum are in 6.95 moles of Aluminum?

A:

Q: What is the mass in grams of a single atom of W? Round answer to 4 significant figures

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Q: Show all work for problem

A: Step 1: There are two common isotopes of rubidium (Rb): 85Rb and 87Rb.           85Rb : mass number…

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

A:

Q: Determine the number of atoms in each sample: a. 45 g Si b. 45 g Sn c. 28.2 mg Pb

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

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.