Aluminum has a density of 2.70 g/cm3 and molar mass of 26.98 g/mol. Its atomic radius is 143 x 10 – 10 cm. 4.10 grams of aluminum foil has an area of 1012.6 cm +2 . a. Determine the thickness of the foil. b. Determine the number of layers of aluminum atoms in the foil. c. Estimate the Avogadro’s Number. (Hint: Avogadro’s Number has a unit of atoms/mol. 2.70 g of aluminum has a volume of 1 cm+3. The volume of aluminum atom has the unit of cm+3/ atom and V = (4/3) π r 3

Q: A catalytic converter in an automobile uses a palladium or platinum catalyst (a substance that…

A: Given: Initial pressure, P1 = 745 torr Final pressure, P2 = 552 torr Volume, V = 2.45 L…

Q: 48. What kind of reaction is this: Mg(s) + 2HI(aq) forms Mg12(s) + H2(g)

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Using the information below, what is the AHrxn for the formation of one mole of the hypothetical…

A: Whenever the direction of a reaction is reversed then the magnitude of enthalpy of reaction remains…

Q: "Native," or elemental copper can be found in nature, but most copper is mined as oxide or sulfide…

A:

Q: 4. Write balanced formation equations for the following, indicate proper states: → N2O3(g) C2H3F(g)

A: A question based on general chemistry that is to be accomplished.

Q: found below to complete tasks a-c below A 5g sample of copper is reacted with hydrochloric acid […

A: 9. Given that, Amount of copper metal reacted with aq. HCl = 5.0 g a) A general balanced reaction…

Q: Silicon dioxide reacts with carbon at high temperature to form an extremely hard silicon carbide.…

A: ANSWER

Q: AB4(g) + 2 B2C(g) ⇌ AC2(g) + 4 B2(g) Kp = 21/62500

A:

Q: (a) How many grams of carbon and how many grams of water can be produced from 2.3 lb of sucrose?

A: Given chemical equation:  C12H22O11 -----------> 12C + 11H2O We first need to  convert lb(pound)…

Q: According to the scheme below, How much energy is required to evaporate 54.06 g water (Molecular…

A:

Q: 31. How many moles of potassium bromide can be produced from the reaction of 2.92 moles of potassium…

A:

Q: The balanced equation for the synthesis of ammonia is 3 H2(g) + N2(g) → 2 NH3(g). 4. Calculate: 1.…

A: The balanced reaction taking place is given as, => 3 H2 (g) + N2 (g) -------> 2 NH3 (g)

Q: What is the maximum mass in grams of magnesium oxide that can be produced by the reaction of 6.8g…

A:

Q: 011: calculate mass needed to prepare 5.0L of 0.10N Na,CO,(105.99g/mol) from standard solid.

A:

Q: 18.6 mL of ethanol is allowed to undergo combustion with an excess of gaseous oxygen to produce…

A: Given;

Q: CO, H2 → CH, H,O (a) How many moles of water can be produced from 25 moles of carbon dioxide? (a (b)…

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: Question5

A: Given data, 100 g of SiO2 gives 51.4 g of SiC It is known that, The molecular weight of SiO2 =60.08…

Q: During the lecture we discussed this reaction: 2 NO2 (g) – N204 (g) what would you expect to happen…

A: The reaction given is Hence the equilibrium constant for the above reaction is where [N2O4] =…

Q: Match each statement in the left column of the table below with a compound on the right. In your…

A: In the given question properties of species are mentioned in column -1 while in column-II species…

Q: Potassium chlorate, potassium chloride, and water is produced by passing chlorine gas into a hot…

A: Given : volume of potassium chlorate  = 694.45 ml Molarity of potassium chlorate = 4.06 M  Density…

Q: 2. Determine the formula of the parent acid resulting from the hydration (addition of water) of each…

A: The parent acid of sulfur dioxide is sulfurous acid.The parent acid of B2O3 is Boric acid.

Q: A chemist has two alloys, one of which is 5% gold and 15% lead and the other which is 40% gold and…

A: A chemist has two alloys, one of which is 5% gold and 15% lead and the other which is 40% gold and…

Q: A 67.2 gg sample of a gold and palladium alloy contains 3.55×1023 atomsatoms . A) What is the mass…

A:

Q: How many moles of H2 gas can be formed from 0.39 grams of Mg? M g ( s ) + 2 H C l ( a q ) ⟶ H 2 ( g…

A:

Q: For items 5 and 6: 5. What is the mole ratio of 3NO2 to 2HNO3? 3NO2 + H2O → 2HNO3 + NO 6. What is…

A: Stoichiometric relation help in finding the relationship between the quantity of reactant and…

Q: solid mercury(I) oxide breaks down to form liquid mercury and oxygen gas

A: Solid mercury (I) oxide breaks down to form liquid mercury and oxygen gas.

Q: Part 2 O See Hir Consider a sample of gas that contains 625 moles of smokestack gas. How many…

A:

Q: Which graph corresponds to this reaction? NH3(g) + HCI(g) 5 NH,CI(s) D AG AG AG AG +

A: In this question we are given a chemical reaction and we have to choose the correct graph between…

Q: Match each statement in the left column of the table below with a compound on the right. In your…

A: Different elements combined to form different compounds. These are compounds are held together by…

Q: An analysis of the flue gas (dry basis) indicates that it consists of 7.71% CO, 0.51% CO, 7.41% O,…

A:

Q: The balanced equation for the decomposition of cesium nitride is __________. a CsN3 (s) → Css) +…

A: Given: Decomposition of cesium nitride.

Q: Data Table 1: NaHCO, Reaction Data Mass of evaporating dish (g) 47.19919 Mass of evaporating dish +…

A:

Q: 1. The amount of carbon dioxide in the Earth's early atmosphere decreased because it was used by…

A: Carbon dioxide (CO2) is consumed in photosynthesis by plants, that resulted in its decreased…

Q: 2 Na + Cl2 --> 2 NaCl What is the mole ratio of sodium to sodium chloride? a.  2:1 b.  2:2 c.…

A:

Q: Given these reactions, where X represents a generic metal or metalloid 1)…

A: There are some errors in the given reactions, here the corrected reactions are,

Q: Ammonium nitrate is used as a highly soluble nitrogen-rich fertilizer. What is the mass% N for this…

A: Given: It is given that,"Ammonium nitrate is used as a highly soluble nitrogen-rich fertilizer" The…

Q: A 0.755-g sample of hydrated copper(II) sulfate (CUSO4•NH2O) was heated until it lost all the water…

A: Given: Mass of CuSO4.nH2O taken = 0.755 g And mass of CuSO4 produced after heating = 0.483 g Molar…

Q: Metallic titanium and its alloys (especially those with aluminum and vanadium) combine the…

A:

Q: 1. Company vehicle records indicate that 140 g of sodium azide was placed in the air bag during…

A: We are given 140 g of sodium azide. We have to find the number of moles of nitrogen gas produced by…

Q: Given these reactions, where X represents a generic metal or metalloid 1)…

A: There are some errors in the given reactions, here  the corrected reactions are,   Required…

Q: In the reaction N2(g) + 2O2(g) ---- > 2NO2(g) what is the volume ratio of N2 to NO3 A. 2:5 B. 2:1…

A: There is an error in the question. It should be NO2, and not NO3. I've corrected and answered…

Q: 5. If there is 256mL of propane (C3H8) is combusted at a constant pressure and temperature. C3H8…

A:

Q: A secondary step in the process to produce ultra-pure silicon is to combine silicon tetrachloride…

A:

Q: Ke =215 at 22° C. Suppose that 0.04S6 7. For the dimerization of NO2: N204 2NO2 → exists? a) 44.7…

A:

Q: 1. What is the mole ratio of aluminum sulfate to sulfuric acid? The reaction can be written as…

A: The reaction can be written as follows. Al2O3 (s) + H₂SO4 (aq) →> Al2(SO4)3 (aq) + H₂O (1)

Q: 3. A 2.00 g sample of BrxOy is converted to 2.936 g of AgBr. Determine x and y.

A: 2.00g of BrxOy gives 2.936g of AgBr % of Br= ( Mol mass Br/ mol mass AgBr).100

Q: You’re out hiking in the Grand Canyon, and you ran out of water, but you do have a pressurized tank…

A:

Q: Step 1: N2O5(g) → NO:(g) + NO2(g) Step 2: NO2(g) + N2O5(g) → 3NO2(g) + O(g) Step 3: NO3(g) + O(g) →…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".