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Ipatiy [6.2K]
3 years ago
8

Describe some characteristics of a prokaryotic cell

Chemistry
2 answers:
ss7ja [257]3 years ago
8 0

Answer:12121

Explanation:

alina1380 [7]3 years ago
6 0

Answer:

- they don't have a nucleus and other membrane-bound organelles

- its DNA is found in the nucleoid  

- the cell wall is extra protection, helps keep the cell's shape, and prevents dehydration

- their small size allows the quick entry and diffusion of ions and molecules to other parts of the cell while also allowing fast removal of waste products out of the cell

Explanation:

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What is the total mass of solute in 1000. grams of a solution having a concentration of 5 parts per million?
Art [367]

50 grams or 50,000 mili grams  is the mass of solute in 1000 grams of a solution having a concentration of 5 parts per million.

Explanation:

Total mass of solution = 1000 grams or 1000 ml since 1 gram = 1 ml

concentration is 5 parts per million ( 5 mg in 1000 ml solution or 0.005 gram in 1000 ml)

the formula used for parts per million:

parts per million = \frac{mass of solute (mg)}{volume of solution}

putting the values in the equation:

parts per million = \frac{mass of solute}{volume of solvent}

0.005 x 1000 = mass of solute

50 grams= mass of solute

converting this into mg

50,000 mg. is the total mass of solute in 5ppm of 1000 ml solution.

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3 years ago
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