What is the mass of 4.9 moles of N2O5?   a.   52.92g   b.   5.292g   c.   0.5292g   d.   529.2g

Q: Balance the following equations:

A: balancing of reaction is done to follow the conservation of mass.

Q: Compare, at the same temperature and pressure, equal volumes of H2 and O2 as to the following:…

A: Let's assume that both H2 and O2 behave ideally. According to the ideal gas law: PV=nRT Where P, V,…

Q: 7 # 3 G 8 4 1 mole CH₁₂0= 1 mole Fe₂(Cro), = g Fe, (CrO₂), -9 C₂H,₂06 10. Avogadro's constant was…

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Q: 2C2H6 + 7O2 = 4CO2 + 6H2O If we have 5g of C2H6, how many moles of C2H6 do we have?

A: Given: Mass of C2H6 = 5 g Molar mass of C2H6 = 30.07 g/mol

Q: 6.723g sample of nickel reacts with Oxygen to form 8.556g  of nickel oxide. Determine the emperical…

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Q: One mole of iron A. is heavier than one mole of lead (Pb). B. is 77.0 g of iron. C. is 26.0 g of…

A: Here given one mole of iron.and we are asked to choose the correct option among the given.

Q: Part A Consider the reaction: 8H2S(g) + 402 (g)-→8H20(g) + S8(g) Find A[O2]/At. A[H2S]/At =…

A:

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: 23. Ammonia is synthesized from hydrogen and nitrogen. N2 (g) + 3 H2(g) - -> 2 NH3 (g)lf 5.00 L of…

A: Given that: N2(g) + 3H2(g) ....> 2NH3(g)  Volume of N2(V) = 5.00L T = 298 K P = 3.00 atm

Q: When you heat popcorn, it pops because it loses water explosively. Assume a kernel of corn, with a…

A: Given data: Mass of kernel popcorn = 0.129 g, Mass left after popping kernel popcorn = 0.103 g Loss…

Q: A gas mixture contains 5.62 g of hydrogen, 45.02 g oxygen, 11.46 g helium, and an unknown amount of…

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Q: 41.2 ml sample of H2 at STP would contain how many grams of hydrogen?

A: one mole of any species contains quantity of its molar mass.

Q: determine the number of moles in 32 grams of oxygen gas

A: Data given: Mass of oxygen gas = 32 grams

Q: 13. When 28.0g of carbon monoxide is analyzed, it if found to contain 12.0g of carbon and 16.0g of…

A: In 28g of CO, that is 1 mole of CO contains one mole of C and one mole of O; in 375.0g of CO, 13.4…

Q: 17. 75.21 °C, Ca(s) + 2 H,SO, () → CaSO,(s) + SO2 (g) + 2 H20((0) 18. 982 K, C¿H2 (9) + 5 N,0(g) → 2…

A: Given Reaction C2H2(g) +5N2O(g) →2CO2(g) +H2O(g) +5N2(g)To calculate ∆G° at 982 k∆G° = ∆H°-T∆S°∆H° =…

Q: Тemperature (K) Volume (L) Pressure Sample Substance (atm) A. 600 2. B Kr 273 3. C. Xe 273 Which 2…

A: We are give the data in the table, We know that, PV=nRT n=PV/RT

Q: 10.76 A sample of 3.00 g c 21 °C is transferred 2.35 g N2(g) originall to this same 10.0-L SO2(g) in…

A: To calculate the partial pressure of each gas, we can use the general law of ideal gas : PV = nRT…

Q: Natural gas is mostly composed of methane (CH4). In 6.07 g of CH4, how many millimoles of CH4 are…

A: Given, Natural gas is mostly composed of methane. Weight of methane =  6.07 g Molar mass of methane…

Q: [tot] 3Li(s) + (1/2)N2(g) → Li3N(s) ΔH(tot) = ___________? [1] 2Li(s) + 2HCl(aq) → 2LiCl(aq) +…

A: A numerical problem based on enthalpy change calculation, which is to be accomplished.

Q: Adding helium to a balloon increased its volume from 309.1 mL to 1.695 L. If the final number of…

A: Given data,  Initial volume of helium gas in the balloon ( V1) = 309.1 mL = (309.1/1000) L = 0.3091…

Q: 4) ½N2(g) + 02(g)= NO2(g) Kc 1.04 x I N2(g) + 202(g) = N204(g) Kc =7.42 x 1 %3D Calculate Kc for…

A: Calculate Kc...

Q: Part B IF 12.0 g of MgSO, 7H O is thoroughly heated, what mass of anhydrous magnesium sulfate will…

A: Given : Mass of MgSO4.7H2O = 12g

Q: Balance the following equations and indicate whether theyare combination, decomposition, or…

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

Q: Adding helium to a balloon increased its volume from 462.0 mL to 1.510 L. If the final number of…

A: Avogadro’s law states that the volume of a gas is directly proportional to its molar amount at…

Q: A 5lb bag of sugar weigh 2.270kg. Sugar has a molecular weight of 342g/mole. How many moles are in…

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Q: Given : 1CH4 (g) + 2O2 (g) —> 1 CO2 (g) + 2 H2O (g) Q. calculate the mass of c02 gas formed when…

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Q: Determine the formula weight of SrCl₂. Provide an answer to two decimal places.

A: Formula weight is the sum of the atomic weights of all atoms appearing in a given chemical formula.

Q: I.S. B he tollowing formulá unit equation. What is the sum of all of the coefficients? HNO3 ZnS- S+…

A: A balanced equation obeys the law of conservation of mass where the number of atoms remains constant…

Q: a 5.000g sample that contained NaCl and BaCl2 *2H2O was heated. After heating the sample had a…

A: Given : Mass of sample of NaCl and BaCl2*2H2O = 5.000 g And mass of sample after heating = 4.688 g

Q: A sample of a compound has a mass of 41.13g. The sample is found to contain 37.28 g of carbon and…

A: Answer: option 2) 90.6% Carbon and 9.4% Hydrogen

Q: MCQ 27: Avogadro's constant is the numb A. 6.02 x 1023 В. 6.03 х 1032 C. 1.2 x 10 D. 1.23 x 10 2

A: The question is based on mole concept. we have to identify the value of avogadro number.

Q: MCQ 32: Avogadro's constant is the number which was first calculated by A. Joseph Loschmidt B.…

A: It is first calculated by Amedeo Avogadro ,by his name known avogadro constant

Q: 4. Which sample represents the smallest number of moles? a. 1L H2 at STP b. 1L Argon at STP C. 1L of…

A:

Q: de of paraffin wax (C25H52). When paraffin burns in oxygen, carbon dioxide and water are produced.…

A: Balanced chemical equation : C25H52 (s)    + 38 O2 (g)  → 25 CO2 (g)   + 26 H2O (l)    By…

Q: 9) An experiment was done in which zinc was reacted with hydrochloric acid in a vessel to make…

A: Since moles = mass / molar mass And mass of Zinc = mass of evaporating dish + zinc ( before the…

Q: Use the following information to determine how many moles were produced? Round to two decimal…

A: The pressure of the gas is = 742.1 mmHg The volume of the gas is = 9.65 L The temperature of the gas…

Q: How many moles of oxygen will occupy a volume of 7.5L at 1.2atm and 35.0◦C?

A:

Q: A 12.37 g sample of silver nitrate is reacted with 11.9 g of barium chloride according to the…

A: number of moles = mass/molar mass  mass = moles × molar mass

Q: (a) 174Hf→ 170yb + ? chemPad XX→ b) 60 Co→ 60 Ni+? chemPad XoXº ↓ Help Greek Help Greek

A: a)  H174f→Y170b + H24e b)  C60o→N60i + e-10 c) B210i→P210o + e-10 d)  P239u→U235 + H24e

Q: Earth's atmosphere is approximately 78.0% nitrogen and 21.0% oxygen. What is the mass in grams of…

A: Earth's atmosphere consists of 78.0% nitrogen and 21.0% oxygen apart from 0.9% argon and 0.1% other…

Q: Earth's atmosphere is approximately 78.0% nitrogen and 21.0% oxygen. What is the mass in grams of…

A: Pressure of air (P) = 1 atm Volume of air (V) = 1000 L Temperature of air (T) = 298 K Universal gas…

Q: BE’s are: C=O 799, C–H 413, O–H 467, O–O 498, H–H 432 kJ/mol CO2(g) + 4H2(g) → CH4(g) + 2H2O(g)…

A: By using this we can calculate the ∆H°rxn for both the reaction .

Q: 5) What mass of methane does a single cow produce? Calculate the high and the low end, please. 179 g…

A: Stoichiometry refers to relationship between the amounts of reactants and products as per balanced…

Q: Answer the following questions using the data in the table below.  See the calculations section…

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Q: 4) ½N2(g) + 02(g)= NO2(g) Kc = 1.04 x 10-9 N2(g) + 202(g) = N204(g) b Kc 7.42 x 10-18 Calculate Kc…

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Q: mole ratic 1C

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Q: Use the following information to determine how many moles were produced? Round to two decimal…

A:

Q: 4. For each of the following chemical ........a. CH4(g) + O2(g) → CO2(g) + H2O(g)b. Al(s) + HCl(aq)…

A: (a)In a balanced equation number of atoms for every element and total change in the reaction are…

Q: How many moles of hydrogen are in 1.0 mole of quinine?

A:

Q: O Cl2(g) + 2KBr(aq) → Br2() + 2KCI(aq) O Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g) 2H2(g) + O2(g) →…

A:

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.