TRUE or FALSE A mole is the amount of a substance that contains as many elemental entities as there are atoms in exactly 12 grams of carbon-12 isotope.

Q: Determine the mass in grams of 6.07 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

A:

Q: How many GRAMS of sulfur hexafluoride are present in 9.83×1022 molecules of this compound ?

A: Given : Compound is sulfur hexafluoride i.e SF6. And number of molecules of SF6 = 9.83 X 1022…

Q: How many moles of calcium atoms do you have if you have 4.98 x 10^21 atoms of calcium. (The mass of…

A:

Q: A copper ring is composed of 1.45×1023 atoms.1.45×1023 atoms. Calculate the mass of the ring in…

A: The mass of the ring in grams is to be calculated

Q: If 10 magnesium(Mg) atoms and 10 chlorine(Cl) atoms were to bump into each other, coukd they combine…

A: If 10 atoms of magnesium and 10 atoms of chlorine bump into each other, they will combine to form a…

Q: A sample of C3H8C3H8 has 8.88×1024 H8.88×1024 H atoms. (1) How many carbon atoms does the sample…

A: We have given the sample that contain 8.88×1024 H atoms.   1 Mole of  C3H8≡  3 Mole of Carbon   and…

Q: An unknown compound has the following chemical formula: CF, where x stands for a whole number.…

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Q: SO2 has 8.50 × 10^24 molecules. What is its mass in grams?

A: Molar mass of any compound can be expressed in g mol-1 and atomic mass units. Every molecule has its…

Q: How many carbon atoms are in 29 molecules of benzene, C₆H₆?

A: Given, number of benzene molecules = 29 molecules number of carbon atoms in 29 benzene molecule= ?

Q: Rubidium has two naturally occurring isotopes. The average mass of Rb is 85.4678 u. If 72.15% of Rb…

A: Given, Average mass of Rb = 85.4678 u Isotope I, Rb-85 : natural abundance = 72.15 %  relative…

Q: Aluminum (Al) is element 13 on the periodic table. A sample contains 4.56×1022 atoms of Al.…

A: In this question, we will calculate the amount of Al in grams unit.  You can see below.

Q: Explain the following statement: The smallest particles uniqueto a compound cannot be atoms

A: A compound can be described as a substance consisting two or more elements present in unique…

Q: The mass of a single palladium atom is 1.77×10-22 grams. How many palladium atoms would there be in…

A: The mass of a single palladium atom is 1.77×10-22 grams. i.e 1.77×10-22 grams of palladium is equal…

Q: Calculate the mass of gold(III) chloride (Au2Cl6) that contains a million (1.000 x 10^6) chlorine…

A: The atomic mass of Au (gold) is 197 g/mol while the atomic mass of Cl(chlorine) is 35.5 g/mol. Molar…

Q: How many grams of rubidium are in 3.49 x 1024 atoms of rubidium? Enter your answer in decimal form…

A: 1 mole atoms = 6.023 * 1023 atoms. molar mass of Rb = 85.4678 gmole  and mass of Rb = mole * molar…

Q: How many total atoms are there in 62.3 g62.3 g of carbon dioxide (CO2CO2)?

A: The number of moles of carbon dioxide is calculated as,

Q: How many moles would 1.00 x 103 molecules of methane ( 1. CH4) represent?

A: Avogadro number (NA) 1 mole of a substance contains 6.02×1023 molecules 1 mole of O2 contains…

Q: Formaldehyde has the formula CH2O. How many molecules are there in 0.55 g of formaldehyde?

A: The molecular formula of Formaldehyde is CH2O Hence molar mass of CH2O = Atomic mass of C X 1 +…

Q: <p>Two substances have the same molecular and empirical formulas. Does this mean that they…

A: A molecular formula uses chemical symbols and subscripts to indicate the exact numbers of different…

Q: How many total atoms are there in one formula unit of Cr(Cr2O7)3?

A: From one formula unit the sum of all types of atoms will give total number of atoms.

Q: How many grams are in 2.23 x 1024 molecules of NiCl2? And How many grams are in 4.29 x 1023 atoms of…

A: One mol of an element contains avogadro number of atoms i.e 6.022×1023 number of atoms. Again one…

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.