Calculate the mass of Cu in g from 8.20 kg CuFeS2

Q: A 19.00 kg sample of an unknown compound contains 0.06 kg of hydrogen, 11.01 kg of gold, 7.93 kg of…

A: Percent composition of any element in a compound is given by the following expression        percent…

Q: Calculate the mass % of 2.50 g Na3PO4 + 10.0 g H2O

A:

Q: A sample of an iron alloy contains 90.2 g Fe, 2.15 g C, and 1.01 g Cr. Calculate the percent by mass…

A: Total mass of the alloy = mass of Fe + mass of C + mass of Cr = 90.2 + 2.15 + 1.01 = 93.36 g

Q: A sugar crystal contains approximately 2.0×1017 sucrose (C12H22O11) molecules. What is its mass in…

A: Relation between mass and number of molecules is:

Q: If 44.0 g of molten iron(III) oxide reacts with 35.0 g of aluminum, what is the mass of iron…

A: Iron(III) oxide reacts with aluminium to form iron and aluminium(III) oxide. The equation for the…

Q: If a particular ore contains 55.9% calcium phosphate, what minimum mass of the ore must be processed…

A: Molar mass of calcium phosphate is sum of atomic masses of all atoms present in it.

Q: Calculate the mass percent of Cu in CuCl2. (Mass of Cu= 63.55 g and Cl= 35.5 g) ii) Calculate the…

A: Mass percent is the percent ratio of mass of element in the compound to the total mass of the…

Q: [References] A1.782-g sample of coal contains 1.584 g C. Calculate the mass percentage of C in the…

A: Given data, Mass of coal sample = 1.782 g Mass of carbon = 1.584 g Mass percentage can be calculated…

Q: POLYMER 1 molecular mass (g) weight |(g/mol) 50000 9.5 25000 8 3000 13.25 10000

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Q: A 0.25 M NAOH is to be standardized with KHP. How much 100% KHP (204.22 g/mol) should be weighed so…

A: Given, Molarity of NaOH solution = 0.25 M = 0.25 mol/L Volume of NaOH solution = 15 mL = 0.015 L…

Q: Which is expected to have AS°rxn < 0? 1.4Al(s) +302(g) → 2A12O3(s) 2. PCI5(g) PCI3(g) + Cl2(g) 3.…

A: If heat flows into the system from the surroundings, Delta S of the surroundings is less than zero.

Q: a. N204(g) ® 2 NO2(g) b. NaCI(s) ® Na *(aq) + CI "(aq) c. 2 NH3 ® N2(g) + 3 H2(g) d. CaO(s) + CO2(g)…

A: Entropy is degree of randomness or disorder in a system.  Entropy of a system is directly…

Q: Question attached

A: Mass percentage It is one of the method to express the concentration of a substance The equation…

Q: B How may oxygen atoms are in 225 g of oxygen gas? 4.23 x 102+ b. 6.84 x 10²4 8.47 x 10²4 1.69 x…

A: To calculate the number of oxygen atoms in 225 g of Oxygen gas.

Q: KiPO. Al(CN), Mg(SCN) Zn(OH).

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: Calculate the grams of nitrogen in 23.4 g of Ca(NO3)2.  2. Calculate the mass percent of chlorine…

A: The given data : 1.The mass of the Ca(NO3)2 = 23.4 g To determine = The mass of nitrogen 2.…

Q: 5) Calculate the mass percent of chlorine for each compound listed. A. C6H6O3CI4 B. CF3C13

A: The answer to the following question is given as:

Q: 45.2 g NH3 On O P Ov OT

A: We are given: Mass of NH3 = 45.2g

Q: How many grams of aspirin should be used to prepare 1.255 kg of the powder? Aspirin 6 parts…

A: Given;

Q: A 2.05 g sample of an unknown compound contains H, S, and O. If the compound contains 0.050 g H and…

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Q: Q/ 0.1 g a NaCL , qul Moarity2 L. Na = 23 . CI = 35.45 *

A: Kindly post question in english language from next time. I can't understand your language but…

Q: Calculate the mass in kilograms of 11.9 mol of CuF2 2H20. kg CuF2 2H20

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Q: Find the number of Na' ions in 2.92 g of NaPO,

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: One mole of iron contains 6.022 x 1023 grams of Fe. True False

A: One mol of any substance has mass equal to its molar mass and contain atoms equal to the Avagadro's…

Q: Zinc sulfide (ZnS) occurs in the zinc blende crystal structure.(a) If 2.54 g of ZnS contains 1.70 g…

A: The mass ratio gives the mass of an element that is found in combination with another element.…

Q: A. 2NO2(g) → N2O4(9) B. Fe(s) → Fe(1) C. 302(g) → 203(g) D. 12(g) → 12(s) E. 2Fe(s) + O2(g) →…

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Q: How many grams of F are in 525 g CaF₂? mass: 50 g

A: Here, we have to calculate the mass of F that is present in 525 g CaF2.

Q: What volume of 5.0M NaCl is needed to provide10.0 grams NaCl?  Atomic weights: Na = 22.99  Cl =…

A: Molarity (M) : Number of moles of solute present in 1 litre solution is called molarity (M)…

Q: Determine the mass (in grams) of aluminum present in 1.08 grams of Al2S3?

A: Molar mass of the elements is equal to the sum of the atomic masses of all the elements. Molar mass…

Q: Iron is found in Earth's crust as seve pounds. Calculate the mass (in kg) c contains 1.0 X 10° kg of…

A: Molecular-Mass: Molecular mass is the sum of atomic masses of the elements present in a molecule. It…

Q: A sample of an iron alloy contains 87.7 g Fe, 2.60 g C, and 1.52 g Cr . Calculate the percent by…

A: Calculate the percent by mass of each component present in the alloy sample.

Q: CrO, но H,0* .CI OH CI 1. DMSO, 2. Et,Cl

A: Given reactions are oxidation reaction of primary alcohols.

Q: A sample containing NaCl, Na,SO, and NaNO, gives the following elemental analysis: Na: 33.807…

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Q: °C. Mass of Mg = g %3D

A:

Q: How much zinc oxide powder should you add to 2 oz (AV) of 5% zinc oxide (Zno) ointment to make a 10%…

A: We will calculate amount of ZnO in 5% ointment , then calculate amount of ZnO added to it to make it…

Q: 17. A 5.0 g sample of calcium nitrate (Ca(NO3)2, M=164) contaminated with silica (SiO2, M=60.1) is…

A:

Q: How many grams of magnesium are required to produce 3.000 kg of Si? (At mass: Mg=24.31; Si=28.09)…

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Q: Balance the following equations AND write in words what each equation means. CH4 + 02 CO2 + H20 Na +…

A: Since you have posted multiple questions, and have not specified which question you want us to…

Q: Calculate the mass in grams (3sig figs) of 7.58x1022 atoms of aluminum

A: Since,  We know that 1 mol of Aluminium contains 6.022 × 1023 atoms.  Therefore,let's calculate the…

Q: A block of gold (Au) has the dimensions (I × b x h) = 0.7600 in x 8.558 mm x 1.816 cm. 1 in = 2.54…

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Q: Hydrogen peroxide (H2O2) is a mild antiseptic used to prevent infection in minor cuts and scrapes.…

A:

Q: the mass of Cu (63.35 g/mol) used to create Cu2S was 41.95 grams. what theoretical mass of Cu2S…

A: The balanced reaction of Cu to form CuS is,                       2 Cu + S  ----&gt;  Cu2S Clearly,…

Q: Calculate the mass of Na in 80.0 g NaCl. A. 31.5 g B. 6.2 g C. 40.0 g D. 1.9 g

A: molar mass of NaCl  =mass of Na +mass of Cl                                   =23+35.5…

Q: Mg + Zn(NO3)2 Zn + Fe(NO3)2 Fe + Mn(NO3)2 Sn + Ca(NO3)2 Mn + SnCl4

A: The net ionic equation is obtained after eliminating spectator ions from total ionic equation.

Q: Write the chemical formula for each compound, and then calculate the amount in moles in each sample.…

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Q: An engineer has filed for a patent for a brand new allot to be used in golf club heads. The…

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Q: a) 2Na(s) + Cl2(g) →2 Nacl(s) b) Ag(s) + % Cl2(g) → Agcl(s) c) CS2() + 3 O2(g) → CO2(g) + 2 SO2(g)…

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Q: Phosphorus is obtained primarily from ores containing calcium phosphate. If a particular ore…

A: Given information: The mass percent composition of calcium phosphate is 57.8% The amount of…

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.