Homework Help for Chemistry

A mixture is prepared that is 5.0% (w/w) of an unknown substance mixed with naphthalene (molar mass = 128.2 g mol^-1). The freezing
point of this mixture is found to be 77.3 °C. What is the molar mass of the unknown substance? (The melting point of naphthalene is 80.2 °C and Kf = 6.9 °C m^-1.)
The molar mass of the unknown substance =

Draw the structural formula of the product of the reaction shown below.

1. Ten grams of plastic beads with a density of 1.2g/cm^3 are added to 500mL of an organic solvent with a density of 0.80g/cm^3. What is the concentration of plastic beads in mg/L?

As we know that halogens are ring deactivater agents then how they are Ortho para directing???

4.00g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 60./gmol, is burned completely in excess oxygen, and the mass of the products carefully measured:

Use this information to find the molecular formula of X

A compound with a cubic structure, BaxTiyOz, is projected. below:

   (i) Find out the compound's stoichiometry. (ii) What are the Ti, O, and Ba ions' coordination numbers and geometries? (iii) Determine the kind of structure that this compound has chosen. (iv) Draw a projection using linked polyhedra to depict the "TiyOz" portion of the structure (i.e., identify the Ti-based polyhedra and demonstrate how these are linked together in the structure). (v) Make a suggestion for a preparation technique for this compound. One point (vi) What color does the compound have? 

What is the perfect protein structure, and how can it be predicted?

Chemical Potential Energy: Unleashing Plant Power

Plants are amazing natural converters of energy, harnessing sunlight to produce chemical potential energy through the process of photosynthesis. This energy is stored in the chemical bonds of the organic compounds that make up plant matter.

When we eat plants or the animals that eat plants, we are consuming this stored chemical potential energy. This energy is then released through the process of cellular respiration, which provides the fuel our bodies need to function.

In addition to their role as energy producers, plants also play a critical role in the production of renewable energy sources. Plant-based materials, such as corn and sugarcane, can be converted into biofuels, providing an alternative to fossil fuels.

The energy stored in plants can also be harnessed through the use of batteries. By converting plant matter into carbon-based materials, scientists are able to create batteries that are both environmentally friendly and have a high energy density.

In short, plants are a powerful and renewable source of energy. Through photosynthesis, they convert sunlight into chemical potential energy, which can then be released and harnessed for a variety of uses, from providing fuel for our bodies to generating electricity.

Draw the arrow diagram electron configuration for ALL of the following elements from the FICTIONAL PERIODIC TABLE and use it to answer the following questions about each element. NOTE:  it may be easier to complete this paper pencil and upload a picture of your arrow diagrams to google classroom as an attachment. 

• Calculon

Draw the arrow diagram above then use it to answer the following

For the highest occupied sub level:

1. How many ½ filled orbitals
2. How many filled orbitals
3. How many empty orbitals 

• Nucleon

Draw the arrow diagram above then use it to answer the following

For the highest occupied sub level:

1. How many ½ filled orbitals
2. How many filled orbitals
3. How many empty orbitals

• Afraidium

Draw the arrow diagram above then use it to answer the following

For the highest occupied sub level:

1. How many ½ filled orbitals
2. How many filled orbitals
3. How many empty orbitals

• Onionium

Draw the arrow diagram above then use it to answer the following  

For the highest occupied sub level:

1. How many ½ filled orbitals
2. How many filled orbitals
3. How many empty orbitals

• Fazon

Draw the arrow diagram above then use it to answer the following  

For the highest occupied sub level:

1. How many ½ filled orbitals
2. How many filled orbitals
3. How many empty orbitals

Définir l’élément chimique.

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