mit 5 Mole Concept S21 / 10 of 16 What is the mass of a 12.56L sample of carbon dioxide? O A. 17.9 g о в. 8.9 g о С. 4501 g O D. 24.7 g

Q: 33. How many hydrogen atoms are in 4 molecules of isopropyl alcohol, C;H-0? А. 2.4 x 1023 atoms of H…

A: Given, 4 molecules of isopropyl alcohol, C3H7O   Required,                Number of hydrogen atoms…

Q: A gas evolved during the fermentation of sugar was collected at 22.5°C and 702 mmHg. After…

A: R = 0.08206 Lat/molKV = 25.0 Ln = ?

Q: What is the element the has a mass of 2.5g when 1.25 moles are taken of it? H2 N2 Cl2 O2 Br2

A: Given Mass of element = 2.5 g moles = 1.25 moles

Q: made-up compound: J2(QZ3)2 Determine the number of molecules of J₂(QZ3)2 in 7.2 grams of J₂(QZ3)2…

A: Given -> Weight of J2(QZ3)2 = 7.2 gram  Atomic mass of J = 19.00 g/mole Atomic mass of Q = 35.00…

Q: Suppose the reaction, Ca3(PO4)2 + H2SO4 → CaSO4 + H3PO4 is carried out starting with 103 g of…

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Q: 17) If 4.61 x 1021 atoms of element X have a mass of 0.815 g what is the identity of X? The…

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Q: A compound was analyzed and the following results were obtained: • Molar mass: 270.4 g/mole • Mass…

A: The chemical formula of an unknown compound is determined by the percent by mass of the elements…

Q: Calculate the mass of 1.4 moles of Ba3(PO4)2.

A: Recall the data, moles of Ba3(PO4)2=1.4 mol molar mass =601.93 g mol-1 mass of Ba3(PO4)2=?

Q: Find the mass of 4.5 moles of Zinc (Zn).

A: Given, moles of Zinc (Zn) = 4.5 moles mass of Zinc (Zn) = ? g Note: molar mass of Zinc (Zn) = 65.38…

Q: A 1 Amount of substance 1.1 Which mass corresponds to 6 × 1023 u (without calculation)? 1.2 What is…

A: The mass that corresponds to 6 × 10^23 atomic units is 1 gram. This is because 6 × 10^23 atomic…

Q: The reaction of sulfur powder (S8) with oxygen gas (O2) results in the formation of one of many new…

A: We know that, molar mass of O = 15.999 g/mol molae mass of S = 32.065 g/mol

Q: When 0.220 g of iron (atomic weight %3D 55.85 g/mol) is burned, 0.341 g of iron oxide is obtained.…

A: Given, Mass of iron = 0.220 gm Mass of iron oxide = 0.341 gm Mass of oxygen = mass of iron oxide -…

Q: Calculate the mass of CBr4 a) 320 g b) 332 g c) 92 g d) none of these

A: Mass of C = 12g/mol  Mass of Br = 80g/mol

Q: Determine the number of atoms of O in 7.23 moles of Ca(NO3)2. atoms 3 4 6. 7 9. +/- х 100 2.

A: Given: Moles of Ca(NO3)2 = 7.23 mol

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

A:

Q: How many grams of platinum (Pt) contain the same number of atoms as 5.0 g of lithium (Li)? О а. 0.18…

A: Given, Mass of lithium (Li) = 5.0 g Mass (in grams) of platinum (Pt) contain the same number of…

Q: Calculate the molar masses of the following chemicals: 6. CCl,F2 7. Mg (OH) 2 8. UF6 1. Cl2 2. КОН…

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Q: What is the molar mass of the solid C 6H8 N4 O 4?     2. The following  18  O  -2. How many…

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Q: How many oxygen atoms are there in 2.10 g of Al2(S208)3 (MW A12(S208)3 = 630.34 amu) %3D O a. 4.82 X…

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Q: Calculate the molar masses of the following chemicals: 11. (NH4)2SO4 6. CCI2F2 7. Mg (OH) 2 8. UF6…

A: The molar mass of KOH  is calculated from the molar mass of elements. The First Molar Mass of…

Q: In 6.9 g of aluminum, there are ______ x 1023 aluminum atoms present

A: Molecular mass of atom contains 6.023 × 10^23 atoms. Molar mass of aluminium is 26.981 g/mol

Q: Fulminating silver is the historic name for compounds that contain silver and which explode…

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Q: 22. What is the mass in grams of each of the following? a. 3.011 × 10²⁹ atoms F b. 1.50 x 1023 atoms…

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Q: What is the mass of a sample containing 1.00 mol of atoms, 33% of them N and 67% of them O?…

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Q: convert 1.89 • 1024 atoms of carbon to moles of carbon

A: Calculation of moles of Carbon :

Q: what Mass or NaN3 L6S mol) is needed to produce (28 9 mol-) ? 1.00 g 2 Na Ng 7Z Na+ 3 N2 a) 1.Ss 9…

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Q: How many atoms of chlorine are in 15.5 g of C2Cl4? choices are a. 3.86 × 10^23 atoms b. 3.73 × 10^25…

A:

Q: O 1.98 x 1022 atoms of lead

A:

Q: Which of the following has the largest moles of oxygen per mole of the molecule?

A: 1 mole of any substance = avogadro number of particles                                          =…

Q: How many atoms of carbon are in 4.6 grams of C₂H5OH? A) 1.0x10-1 carbon atoms B) 1.2x1023 carbon…

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Q: Using the solution Pb(NO3)2(aq) at 2x10-3 mol/L, and Na2SO4(aq) at 2x10-3 mol/L: - give the chemical…

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Q: If 4.8 g of sulfur react with an excess amount of fluorine  according to the 'equation,' what mass…

A: The reaction taking place is  S + 3 F2 ⟶ SF6  Given : mass of S reacting = 4.8 g

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.