Q:Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs, and to ignite solid-fuel rocket motors. The reaction is given below.Fe2O3(s) + 2 Al(s) 2 Fe(l) + Al2O3(s)What masses of iron(III) oxide and aluminum must be used to produce 10.0 g iron?a) iron (III) oxideb)aluminiumc)What is the maximum mass of aluminum oxide that could be produced?

I'm going to show my calculations anyways Fe2O3(s) + 2 Al(s) -- 2 Fe (l) + Al2O3 (s) From the equation : 1 mole of iron (III) oxide 2 moles of aluminium -- 2 moles of iron 1 mole of aluminium oxide Given that iron = 10.0 g = 10.0 g / 55.8 g per mole = 0.179 mol of iron (corr to 3 sig fig) Because the mole ratio of iron to iron (III) oxide is 2 : 1 Therefore moles of iron (III) oxide produced = 0.179 / 2 = 0.0895 mol Convert it back to grams 0.0895 x (55.8 x 2 + 16.0 x 3) = 14.3 grams (corr to 3 sig fig)' a) 14.3 grams of iron (III) oxide must be used ----- Given that iron = ...... (previously calculated) ...... = 0.179 mol of iron (corr to 3 sig fig) Because the mole ratio of iron to aluminium is 1 : 1 Therefore moles of aluminium produced = 0.179 mol Convert it back to grams 0.179 x 27.0 = 4.83 grams (corr to 3 sig fig) b) 4.83 grams of aluminium must be used ----- Given that iron = 0.179 mol Because the mole ratio of iron to aluminium oxide is 2 : 1 Therefore moles of Al2O3 produced = 0.179 / 2 = 0.0895 mol Convert it back to grams 0.0895 x (27.0 x 2 + 16.0 x 3) = 9.13 grams (corr to 3 sig fig) c) 9.13 grams of aluminium oxide is the maximum mass that could be produced P.S. The relative molecular masses used are from my textbook

Q:A solid aluminum sphere has a mass of 83 g.Use the density of aluminum to find the radius of the sphere in inchesExpress your answer using two significant figures.I can't figure this out :(

Aluminum has a density of 2.702 g/cm^3. 83 g x (1 cm^3 / 2.702 g) = 30.7 cm^3 That's the volume of the Al sphere. The formula for the volume of a sphere is V = (4/3)(pi)(r^3) where r is the radius. 30.7 = (4/3)(3.1416)((r^3) 7.33 = r^3 1.94 cm = r 1.94 cm x (1 in / 2.54 cm) = 0.76 inches.

Q:Can aluminum sheets be embossed or textured?

Aluminum sheets are indeed capable of being embossed or textured. To achieve this, specialized machinery is employed to press or roll the sheet, thereby creating patterns or designs on its surface. The purpose of embossing or texturing aluminum sheets can be twofold: enhancing the sheet's aesthetic appeal or enhancing its functionality by providing grip or augmenting its strength. These embossed or textured aluminum sheets find widespread usage across different industries, including automotive, interior design, and packaging.

Q:Can aluminum sheet be used for electronic components?

Yes, aluminum sheet can be used for electronic components. Aluminum is a versatile material that offers several advantages for electronic applications. It is lightweight, has excellent thermal conductivity, and is resistant to corrosion. These properties make it suitable for a wide range of electronic components, such as heat sinks, enclosures, connectors, and printed circuit boards (PCBs). Aluminum sheets can be easily machined, formed, and welded, allowing for efficient manufacturing processes. Additionally, aluminum is a cost-effective material compared to alternatives like copper or steel. However, it is important to note that aluminum is not suitable for all electronic components, especially those that require high electrical conductivity or magnetic shielding.

Q:Are aluminum sheets suitable for signage and advertising?

Yes, aluminum sheets are highly suitable for signage and advertising purposes. Aluminum is a durable and lightweight material, making it ideal for creating signs that can withstand outdoor weather conditions and transportation. Its resistance to rust and corrosion ensures that the signs will maintain their appearance and functionality over time. Aluminum sheets can be easily cut and shaped into various sizes and designs, making them versatile for different advertising needs. Additionally, aluminum's smooth surface allows for high-quality printing and graphics, providing excellent visibility and readability for signage. Overall, with its durability, versatility, and aesthetic appeal, aluminum sheets are a practical and effective choice for signage and advertising.

Q:Can aluminum sheet be used for automotive applications?

Yes, aluminum sheet can be used for automotive applications. Aluminum is a lightweight and strong material that offers several advantages in the automotive industry. It is widely used in the production of car bodies, hoods, doors, and other structural components. Aluminum sheets are preferred for these applications because they provide excellent strength-to-weight ratio, corrosion resistance, and durability. Additionally, aluminum is easily formable, which allows for complex shapes and designs to be achieved. The use of aluminum in automotive applications also helps to improve fuel efficiency and reduce emissions due to its lighter weight. Overall, aluminum sheet is a suitable choice for automotive applications due to its numerous beneficial properties.

Q:Are aluminum sheets suitable for electronic enclosures?

Yes, aluminum sheets are suitable for electronic enclosures. Aluminum is a lightweight and durable material that offers excellent conductivity and thermal management properties, making it ideal for electronic enclosures. It also provides good shielding against electromagnetic interference (EMI) and offers corrosion resistance, making it a popular choice in the electronics industry.

Q:Status of aluminum sheet F

Status of aluminium plateThe F is free, and the aluminum sheet state is not limited. It is suitable for the products which have no special requirement for the working hardening and the heat treatment conditions in the forming process. The mechanical properties of the products in this state are not specifiedO is an annealed state, that is, a fully soft state, suitable for fully annealed products with minimum strength

Q:Are aluminum sheets suitable for automotive body framing?

Yes, aluminum sheets are suitable for automotive body framing. Aluminum is lightweight, corrosion-resistant, and offers excellent strength-to-weight ratio, making it an ideal choice for reducing vehicle weight and improving fuel efficiency. It is commonly used in modern automotive manufacturing for body panels and frames, providing structural integrity while maintaining durability.

Q:i know what aluminum is but oxide is not found on the periodic table, and the teacher also gave us a list of common oxidation numbers for polyatomic ions and it is not there also, can anyone help me?

oxide means oxygen.. atomic mass of roughly 16. Al2O3 so 2 Al which has an atomic mass of 27 each and then three O which have an atomic mass of 16 each.. so add it up and you get 102