The Avogadro constant is defined as: A The number of atoms in exactly 1gof carbon-12 B The number of atoms in exactly 12 g of 28. carbon-12 C The number of atoms in 1/12th of the mass of carbon-12. D The carbon atoms found in 6.02 x 103 g of carbon

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Q: )2.709 x 10 to the 23rd Ca+2

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Q: The number of moles of S in 2.8 x 1024 atoms of S is: 1.0 mole of S atoms 4.6 moles of S atoms 3.1…

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Q: 3) Avogadro's number is most simply A) 6.02 x 1023 amu in 1 mole of a substance. B) 6.02 x 1023…

A: The number of units in 1 mole of a substance is known as Avogadro's number. And the value of…

Q: 56.172g of pure (elemental) Si is equivalent o how many moles of Si?   A): 6.02 x 10^23 moles of…

A: SOLUTION Mass of elemental Si = 56.172 g Atomic mass of Si =  28.086 g/mol Moles of Si =…

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Q: Phogene (COCl2) can be manufactured by mixing carbon monoxide with chlorine gas. CO + Cl2 → COCl2…

A: CO + Cl2 .....> COCl2  Given that :  Moles of carbon monoxide(CO) = 7.25 moles

Q: Use the following terms to complete the statement: 6.02 x 1023 molecules 6.02 x 1023 atoms 4 atoms…

A: One mole of an element contain Avogadro's number 6.02×1023 of atoms of that element. Therefore, 1…

Q: Calculations Using the Mole Learning Goal: 2.32x1023 13C atoms To learn how to convert grams to…

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Q: What is the mole ratio of Mg to MgCh? Mg(s) + HC|(aq) -› MgCh(aq) + Ha(g)]

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Q: 2. A compound composed of carbon and hydrogen with the formula CxHy was burned. The balanced…

A: The reaction is,  2CxHy +13O2--->8CO2 + 10 H2O Now we have to divide above equation by, 2 we get,…

Q: 2. A compound composed of carbon and hydrogen with the formula CxHy was burned. The balanced…

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Q: When 7.80 mg of a compound containing only carbon and hydrogen was burned completely in 28.3 mg of…

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Q: Show all steps in the answers for the following questions and use significant figures in the…

A: * Moles = Mass / molar mass  * 1 mol = 6.022 × 10²³ atoms or molecules * Molar mass of Carbon = 12…

Q: Q9) How many moles of Cl atoms are in 65.2g of CHCI3 ? a) 15 b)35 c) 30 d) 3.5

A: Provided amount of CHCl3=65.2g Molar mass of CHCl3=119.38g

Q: What is the number of moles in 432 g Ba(N03)2? A) 3.25 B) 0.605 C) 0.237 D) 1.65 E) 113,000

A: Answer 2: Introduction: mole: As per the international system of unit (SI) , mole is the unit of…

Q: 1. Convert 61.51 a of He to moles of He

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Q: 35 Consider the following balanced chemical reaction: (27.74 g C3H6O) + (61.12 g 0₂) --- >(x g CO₂)…

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Q: How many moles are equal to 4.5 x 1023 molecules of carbon monoxide? (Round to two decimal places).

A: No of CO molecules = 4.5 × 1023 molecules No fo moles = to be determined

Q: Which law would you use to compare CO and CO2 ? Explain. Without doing any calculations, determine…

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Q: Convert 1.23×1024 atoms of carbon to moles of carbon.

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Q: Calculate the number of atoms in 12.45 grams of iron . 1.342 x 1023atoms 1.342 x 1022toms 0.223…

A: The question is based on mole concept. We have to calculate number of atoms of iron.

Q: sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g. a. Record each step needed to calculate the…

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Q: 10. Calculate the number of moles represented by each of these: a) 127.08 g Cu b) 20.0 g calcium c)…

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Q: 35. Determine the percent ammonia, NH3, in Co(NH3)6Cl3, to three significant figures.

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Q: Convert 1.41×1024 atoms of carbon to moles of carbon.

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Q: A balanced chemical equation contains the term "2Ba(OH)2⋅8H2O." How many atoms of each element does…

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Q: Calculate the folowing   1-number of atoms in 6.54 g Be =37 x 1023 atoms 2-number of atoms in 28.0…

A: Number of Moles = (Mass of the Sample)/(Molar Mass)   Number of Atoms or Molecules = (Number of…

Q: A 85.6 g sample of Fe3O4 reacts with 18.2 g of CO to form FeO and CO2. Fe3O4(s) + CO(g) ----->…

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Q: The number of molecules in 0.556g of PF6 is

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Q: The Avogadro constant is defined as: A The number of atoms in exactly 1gof carbon-12 B The number of…

A: Avogadro Constant : Avogadro number, number of units in one mole of any substance (defined as its…

Q: 1. Vitamin C has the formula C,H¸Og. Calculate the number of vitamin C molecules present in a 0.250…

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Q: 13. What is the total number of atoms in each sample? b. 2.783 mol of methanol (CH3OH) d. 1.002 mol…

A: Hello, since your question has multiple parts, we will solve the first question for you. If you want…

Q: A balanced chemical equation contains the term "2Ba(OH)2⋅8H2O." How many atoms of each element does…

A: The given term in the balanced equation is: 2Ba(OH)2⋅8H2O  The subscripts in a molecule represent…

Q: Use the References to access important values if needed for this question. a. How many ATOMS of…

A: A mole is defined as the number of particles or constituents present in exactly 12g of carbon-12…

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Q: Which of the following can be used mole as a unit to count paticles/atoms? A. Pharmaceutical…

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Q: a. How many moles are in 8.5x1022 atoms Xe? b. How many moles are in 7.4×10 atoms Cu? c. How many…

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Q: How many atoms of C are present in 22.3 g of C?

A: