Suppose you have a sodium sample weighing 11.42 g. What mass of potassium would you need to have the same number of potassium atoms as there are sodium atoms in the sample of sodium? - there are 2.991e23 atoms of sodium in the sample

Q: The density of carbon tetrachloride is 1.59 g/mL. How many chlorine atoms are present in 55 mL of…

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Q: What quantity in moles of silver atoms do you have if you have 3.94 * 1021 atoms of silver. (The…

A: The given question is related to stoichiometry. In the given question, it has been asked to…

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

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: How many moles of calcium atoms do you have if you have 2.85 x 1021 atoms of calcium. (The mass of…

A: The Answer to the following Question is given as:

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: How many moles of sodium atoms do you have if you have 8.40 × 10²³ atoms of sodium. (The mass of one…

A: Given number of sodium atoms = 8.40 × 10²³ Number of sodium atoms in one mole = 6.022×1023

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: 1- First calculate the moles of compound XBr3  moles of XBr3 = ( moles of Br ) / 3  moles of XBr3 =…

Q: Determine the mass in grams of 2.31 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

A: The relation between mass and number of atoms:                                    Mass(g)molar…

Q: Determine the mass in grams of 6.96 × 102¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A: Mole is defined as mass of substance divide by it's molar mass

Q: 4. A chemist has a sample of propanol, C3H;OH, that contains 9.2 x 1024 molecules. What is the mass…

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Q: Consider a sample of aluminum nitrate that contains 1.72 × 10²⁴ atoms of nitrogen. What is the mass…

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Q: What quantity in moles of silver atoms do you have if you have 5.99 × 10²¹ atoms of silver. (The…

A:

Q: What quantity in moles of potassium atoms do you have if you have 3.50 x 1024 atoms of potassium.…

A:

Q: Determine the mass in grams of 3.00 x 1021 atoms of arsenic. (The mass of one mole of arsenic is…

A: Given : number of arsenic atoms = 3.00 X 1021 atoms  mass of 1 mole of arsenic = 74.92 g

Q: Determine the mass in grams of 2.25 x 10 21 atoms of copper. (The mass of one mole of copper is…

A: Introduction: Copper element belongs to group 11 of the periodic table with atomic number 29 and…

Q: How many moles of calcium atoms do you have if you have 8.62 x 1021 atoms of calcium. (The mass of…

A: Number of atoms of Ca is given for which number of moles is to be determined.

Q: Suppose you have a sample of sodium weighing 12.40 g. How many atoms of sodium are present in the…

A: A: 3.25 x 1023 atoms of sodium B: 21.1 g of potassium

Q: If you had 21.5 moles of silicon, how many atoms would you expect to have? And If you had 5.69 x…

A:

Q: Determine the mass in grams of 4.38 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

A:

Q: How many moles of potassium atoms do you have if you have 4.40 × 10²² atoms of potassium. (The mass…

A: The mass of one mole of potassium is 39.10gm.   39.10gm of potassium contain=avogadro number…

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A:

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: We have to calculate molar mass of metal and it's identity.

Q: The molar mass of platinum is 195.08 g/mol. What is the mass of 1.00 × 102 Pt atoms?

A: Given information: Molar mass of Pt = 195.08 g/mol Atoms of platinum = 1.00 × 102

Q: Determine the mass in grams of 4.78 × 1021 atoms of chromium. (The mass of one mole of chromium is…

A: The number 6.023 × 1023 indicates the number of atoms or molecules in a mole of any substance is…

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: Step - 1Formula for the compound = XBr3Means in 1 mol of compound 3 mol of Bromine are…

Q: The mass of a copper coin is 7.83 g. Suppose it were pure copper. a) How many moles of Cu atoms…

A: a) Given that : Mass of Copper coin = 7.83 g Molar mass of copper = 63.55 g/mol Moles of copper atom…

Q: what quantity in moles of potassium do you have if you have 5.70 x 10^22 atoms of potassium. ( the…

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

Q: Suppose you have a sample of sodium weighing 11.50 g. How many atoms of sodium are present in the…

A: Information of question ,

Q: ALLFORONE (C3xH11ClxNOxPS) is an organophosphate pesticide that is used to protect properties from…

A: One mole of any substance contains approximatly 6.022 x 1023 molecules or atom or particles of that…

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A:

Q: Determine the mass in grams of 5.30 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

A: 1 mole of a substance equal to  6.022×1023 atoms which is Avogadro’s number. Thus, the gram value of…

Q: What quantity in moles of potassium atoms do you have if you have 3.50 x 1022 atoms of potassium.…

A:

Q: What quantity in moles of sodium atoms do you have if you have 2.10 × 10²³ atoms of sodium. (The…

A: The objective of the question is to find out the quantity in moles of sodium atoms given the number…

Q: The average mass of one atom of carbon is 2.00 x 10 –23 g. How many carbon atoms are present in a…

A: Given:Mass of one atom of carbon = 2.00 x 10 –23 g.Total mass of sample of carbon = 40.0 g.

Q: Is trying to discover information about an unknown metal in a compound. The formula for the compound…

A: Mass of XBr3 sample= 4.723 g Moles of Br = 5.313× 10 -2 mol

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.