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FAQ

Suppose a cube of aluminum which is 1.00 cm on a side accumulates a net charge of +1.50 pC.(a) What percentage of the electrons originally in the cube was removed?(b) By what percentage has the mass of the cube decreased because of this removal?So for a you need to find total number of electrons removed (which gives it the +1.5 pC charge), and divide that by the number of total electrons in Aluminum right? 13 electrons in Aluminum..and i really don't know much else on this. I've been searching the internet for hours man

One approach to this can use the density of aluminum to find the mass of the1 cm? block. The density of aluminum is 2.70-g/cm? so your cube has a mas of 2.70-g. The number of aluminum atoms in this block is: 2.7-g Al x (1 mol Al / 27.0-g Al) x (6.023 X 10?? atoms Al / 1 mol Al) = 6.023 x 10?? atoms Al. Each Al, as you pointed out, contains 13 electrons so we have 6.023 x 10?? atoms Al x 13 electron/atom = 7.83 x 10?? electrons. 1 x 10?? pC = 1 C and 1 C = 6.24 x 10?? electrons=== 1.5 pC x (1C / 1 x 10?? pC) x ( 6.24 x 10?? electrons / 1 C) = 9.36 x 10? electrons a.) % removed = 9.36 x 10? / 7.83 x 10?? x 100% = 1.2 x 10??? % b.) Each electron has a mass of 9.11 x 10???-g , so the total mass removed =9.11 x 10???-g/elec x 9.36 x 10? electrons = 8.53 x 10???-g. Thus the % decrease is (8.53 x 10???-g/ 2.7-g) x 100% = 3.16 x 10??? %

what is the most likely charge for aluminum cation?the answer is +3, but why? how can i figure this out with different ones?

Aluminum has 3 valence electrons and it will try to get rid of these to end up with the outer valence shell being full. Electrons have a negative charge though, so getting rid of one brings the actual charge up, so it ends up +3.

Aluminum coils are a crucial component in the production of cans and containers. These coils are typically made by continuously casting molten aluminum into thin sheets. Once these sheets are cooled and solidified, they are rolled into coils, which are then used in various manufacturing processes. The first step in using aluminum coils for cans and containers is the process of blanking. In this step, a blanking press cuts the coil into individual circular blanks, which will eventually become the bottom and the lid of the can. These blanks are carefully cut to the required size and shape, ensuring precision and uniformity. Next, the blanks are transferred to a cupping press, where they are placed between a set of dies. The press applies high pressure, causing the blank to take the shape of a cup. This cup will eventually serve as the body of the can or container. The cup is then transferred to a redraw press, where it undergoes a series of operations to improve its shape and dimensions. This process helps to achieve the desired thickness and height of the can or container. The redraw press also ensures that the cup maintains its structural integrity and can withstand the rigors of storage and transportation. After the cup has been redrawn, it undergoes a trimming process to remove any excess material and achieve the final shape. This step ensures that the can or container has a clean and smooth edge, ready for further processing. Once the cups have been trimmed, they are transferred to a base-coating station. Here, a thin layer of protective coating is applied to the inside and outside surfaces of the cups. This coating helps to prevent corrosion and ensures that the contents of the can or container remain fresh and uncontaminated. Finally, the coated cups are passed through a necking press, where the top portion of the cup is formed into a narrower neck. This neck is crucial for attaching the lid or cap to the can or container, providing a secure seal. In summary, aluminum coils play a vital role in the production of cans and containers. They are shaped into blanks, cups, and eventually transformed into the final product through various manufacturing processes. These coils ensure the durability, functionality, and integrity of cans and containers, making them suitable for a wide range of applications in industries such as food and beverages, pharmaceuticals, and cosmetics.

Curtain wall systems can greatly benefit from the use of aluminum coils. This lightweight and durable material offers a multitude of advantages. Firstly, aluminum coils possess excellent corrosion resistance, ensuring the long-lasting and sturdy nature of the curtain wall system. This makes them particularly well-suited for exterior applications, where exposure to various weather conditions is inevitable. Moreover, aluminum does not rust, setting it apart from materials like steel. In addition, aluminum coils can be easily extruded into a wide range of shapes and sizes, allowing for flexibility and creativity in the design of curtain walls. This grants architects and designers the opportunity to create visually appealing and distinctive structures. Another notable feature of aluminum is its high sustainability. It is completely recyclable, meaning that it can be reused without any loss in quality. This makes aluminum coils an environmentally friendly choice for curtain wall systems, aligning with the growing demand for sustainable building materials. Furthermore, aluminum possesses excellent thermal and electrical conductivity, which can contribute to energy efficiency in curtain wall systems. By incorporating thermal breaks and insulation, aluminum curtain walls can effectively regulate temperature and reduce energy consumption, resulting in long-term cost savings. In conclusion, aluminum coils are an outstanding option for curtain wall systems due to their resistance to corrosion, versatility, sustainability, and energy efficiency.

Does anyone know if aluminum skateboards are good?

I haven't seen one since the old QuickSilver-Silver Surfer(circa 1979). They look great, but they become useless when scratched. Which means....you can't really use them for anything. They're not as flexible as wood....and.......Wait until you get hit in the shin with an aluminum skateboard. Aircraft metal my(explicative deleted). My guess is they're inexpensive because they're trying to get the word out. The company owners probably no very little about skateboarding.

Yes, aluminum coils can be used for decorative purposes. They are commonly used in various decorative applications such as trim work, wall panels, ceilings, and decorative accents. Aluminum coils offer versatility in terms of color, texture, and finish, allowing for creative and aesthetically pleasing designs.

Yes, there are specific installation requirements for aluminum coils. When installing aluminum coils, it is important to consider a few factors. Firstly, it is crucial to ensure that the coils are properly supported and secured during installation. Aluminum coils can be quite heavy, so adequate support is essential to prevent sagging or damage. This may involve using appropriate brackets or support structures to ensure the coils are securely mounted. Secondly, it is important to consider the location and environment where the coils will be installed. Aluminum coils are often used in HVAC systems, and it is crucial to ensure that the installation area is free from any corrosive substances or chemicals that could potentially damage the coils. Additionally, proper ventilation should be provided to prevent any buildup of heat or moisture, which can affect the performance and lifespan of the coils. Furthermore, it is essential to follow the manufacturer's guidelines and recommendations for installation. This may include specific instructions regarding the type of fasteners or connectors to use, proper spacing between coils, and any other specific requirements for the particular aluminum coil being installed. Adhering to these guidelines will ensure the optimal performance and longevity of the coils. Lastly, it is highly recommended to have the installation of aluminum coils carried out by a professional who is experienced in handling and installing these components. This will ensure that the installation is done correctly, minimizing the risk of any issues or damage that may arise from improper installation. In summary, specific installation requirements for aluminum coils include proper support, consideration of the installation environment, adherence to manufacturer guidelines, and professional installation. Following these requirements will help ensure the optimal performance and longevity of the aluminum coils.

The typical lead time for ordering aluminum coils can vary depending on the supplier and specific requirements, but it usually ranges from a few days to a few weeks.