Explanation:
The given data is:
The mass% of a solution is 7.
Mass of solution =450g
The mass of salt required can be calculated as shown below:

Substitute the given values in this formula to get the mass of solute that is salt:

Mass of salt =31.5g
Mass of solvent that is water = 450g-31.5g=418.5g
Answer:
pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.
Explanation:
Ammonium sulfate precipitation is used to separate proteins by function
However, it is one of the most commonly used methods for laboratory scale protein purification and fractionation. This method is also used to separate proteins by altering their solubility.
<h3>What is separation techniques?</h3>
Separation technique is a process or method used to the components of mixtures.
There are different types of separation technique which includes sublimation, precipitation, sieving, evaporation and many more.
Learn more about separation techniques:
brainly.com/question/13052303
Answer:
Likely to gain electrons
Explanation:
The atom shown is likely to gain additional electrons to complete its electronic configuration.
- Since this is a neutral specie, the number of protons and electrons are the same.
- The atom has 16 electrons
- the number of valence electrons is 6
- If the atom gains two additional electrons, the octet configuration is attained
- Also, the atom can lose 6 electrons to become an octet
The atom will prefer to gain additional 2 electrons to give an octet configuration.