If you found that you need 0.2943 moles of copper, how many grams of copper do you need?

Q: What quantity in moles of iron atoms do you have if you have 2.50 × 10²³ atoms of iron. (The mass of…

A: We know that ; 1 mole of substance contain = Avogadro's number of atoms . ( Avogadro's number =…

Q: A mixture contains both potassium phosphate and potassium chloride. What is the percentage of…

A: The moles of  Cu3(PO4)2 in 0.5565 g is, number of moles=given massmolar mass…

Q: Suppose you measure out 5.00 x 1022 atoms of aluminum in the form of a solid nugget on the balance.…

A: The formula for the conversion from atoms to moles is : => moles = number of atoms given / 6.022…

Q: It is estimated that we breathe around 5.0 x 1021 molecules of 0, in a single breath. What mass of…

A: Given: Molecules of O2 in a single breath = 5.0 × 1021. Molar mass of O2 = 32 g/mol

Q: student needs to produce 26.18 grams of nitrogen gas (N2) for a lab experiment. How many grams of…

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Q: A solid circular cone made of pure platinum (density = 21.45 g/cm3) has a diameter of 2.75 cm and a…

A: Given information,    Diameter (d) = 2.75 cm so radius (r) = 1.375 cm     Density = 21.45 g/cm3…

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

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Q: The fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight of…

A: Molar mass of any element is equal to the atomic mass of that element in the unit of grams. Molar…

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

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Q: What is the mass, in grams, of 9.71×1024 molecules of methanol (CH3OH)?

A: Introduction :  We need to calculate mass in grams for CH3OH . First convert molecules into moles .

Q: What quantity in moles of iron atoms do you have if you have 3.00 x 10^23 atoms of iron. (The mass…

A: Number of iron atom = 3.0×1023Mole is equal to number of atom divide by avagadro numberValue of…

Q: Find the mass (in grams) 7.7 X 10 molecules of NO,

A: Given :-  Number of molecules of NO2 = 7.7 x 1023 molecules  To calculate :- mass of NO2 in grams

Q: if you have 22.915 grams of iron (II) nitrate and 30.817 grams of sodium sulfate, how many grams of…

A: We have to calculate the mass of sodium nitrate formed.

Q: How many grams of ammonia (NH3) will be required to produce this amount of nitrogen?

A: Balanced equation:                      2NH3 - 3H2 + N2 Moles of N2= 22.53g/28gmol-1=0.8046mol

Q: Determine the mass in grams of 6.04 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: Given data,Number of atoms of Ba=6.04×1021atomsMolar mass of Ba=137.33g/mol

Q: experiment was done to determine the composition of a mixture of sodium chloride and sodium…

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Q: How many molecules are there in 62.3 g of water? You will need to divide your answer by 1.0x10^23

A: Given:  Mass of water = 62.3 g

Q: Determine the mass in grams of 5.51 × 10²¹ atoms of arsenic. (The mass of one mole of arsenic is…

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Q: What is the mass, in grams, of 9.53 x 10" molecules of methanol (CH, OH) ? mass:

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Q: Calculate the mass of 4.53 × 1021 chromium atoms in grams.

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Q: you have 1.500 moles of an unknown metallic element. You go to the balance, and find that the mass…

A: Number of Moles of the Unknown Element = 1.500 moles Mass of the Element = 161.80 g   In order to…

Q: A 18.2 g of iron metal reacts with excess oxygen gas to produce 47.9 g of Fe3O4. The reaction…

A: Fe + O2 -------> Fe2O3

Q: There are 12.6 grams of sugar. With the molecular formula C12H22O11, what is the molar mass of this…

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Q: A chemist measures the amount of bromine liquid produced during an experiment. She finds that 658. g…

A: Given: Mass of bromine liquid produced - 658 g   To find: number of moles of bromine produced = ?…

Q: kg 4. 9.2 x 10 mol dL mol L bl)

A: Here, the unit conversion has to be done from g.mol-1.L-1 to kg.mol-1.dL-1. To convert, the units…

Q: If 1.23 x 1024 molecules of a substance have a mass of 68.2 g, what is the molar mass of the…

A: Given Data: The mass of the substance is 68.2 g.

Q: What is the mass, in grams, of 7.30×1020 molecules of caffeine, C8H10N4O2? Express your answer using…

A: Welcome to bartleby !

Q: Find the mass (in grams) in 4.4 X 1023 molecules of CH,

A: Molar mass of CH4 = 16.04 grams Molecules of CH4 in 1 mol = 6.023× 1023

Q: For the reaction "P₄(s) + 6 Cl₂(g) → 4 PCl₃(l)", if 125 g of P₄ is reacted with 323 g of Cl₂, what…

A: Phosphorus reacts with chlorine to form phosphorus trichloride. The equation for the balanced…

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: The black powder used to propel a firework into the sky is made up of 64% by mass potassium nitrate…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: If atoms of magenesium (Mg) and atoms of 10 chlorine (Cl) could bump into each other, could they…

A: Whether they combine to form any substance has to be determined The number of molecules would be…

Q: An empty propane tank weighs 7.22 kg. When it is filled it weighs 25.20 kg. How many propane…

A: To find the number of molecules of propane.

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: A student needs to produce 28.88 grams of nitrogen gas (N2) for a lab experiment.  How many grams of…

A: Mass of nitrogen produced = 28.88 g The reaction is ., NH3 -->  N2 + H2 The molar mass of NH3 =…

Q: Consider the double replacement reaction between calcium nitrate (Ca(NO3)2) and sodium (Nal). If…

A: Given double displacement reaction:   Ca(NO3)2  + 2NaI   ----->   CaI2  + 2NaNO3  Given amount of…

Q: 15.0 g of iron is allowed to react with air to produce Iron III Oxide. If the reaction is complete,…

A: solution is followed as:

Q: The Statue of Liberty in New York harbor is made of 2.00×10^5 pounds of copper sheets bolted to an…

A: Given: Mass of copper sheets=2.00×105 lb 1 lb=453.592 g Mass of copper (in grams)=907.184 ×105 g The…

Q: What is the mass of 3.5 x 10^-3 molecules of copper (II) carbonate? Use correct significant figures…

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

Q: If you mix 80.01 grams of sodium bicarbonate with 85.54 grams of hydrogen acetate how much carbon…

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Q: Ammonia (NH3) reacts with copper(II) oxide to produce copper, nitrogen, and water. How many grams of…

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Q: Determine the mass in grams of 6.65 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: The mass in grams of 6.65 × 10²¹ atoms of barium has to be determined provided that the mass of one…

Q: Determine the mass in grams of 4.65 × 1221 atoms of barium. (The mass of one mole of barium is…

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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.