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kirill [66]
3 years ago
10

Why do you think humans have two sets of 23 chrosomes

Biology
2 answers:
Sonbull [250]3 years ago
8 0
In humans<span>, each cell normally contains </span>23 pairs of chromosomes<span>, for a total of 46. Twenty-two of these </span>pairs<span>, called autosomes, look the same in both males and females. The 23rd </span>pair<span>, the sex </span>chromosomes<span>, differ between males and females.</span>
Vanyuwa [196]3 years ago
8 0
In humans each cell is normally 23 pairs of chromosomes,total of 46.twenty-two of these pairs are called chromosomes,a total of 46.twenty-two of these pairs,called autosomes,look the same in both males and females.the 23rd pair,the sex chromosomes,differ between males and females.
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How many grams are NaCl are required to prepare 200 mL of a 3.10 M solution?
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The mass (in grams) of NaCl required to prepare the solution is 36.27 g

<h3>What is molarity?</h3>

Molarity is defined as the mole of solute per unit litre of solution. Mathematically, it can be expressed as:

Molarity = mole / Volume

<h3>How to determine the mole of NaCl</h3>
  • Volume = 200 mL = 200 / 1000 = 0.2 L
  • Molarity = 3.1 M
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The mole of NaCl in the solution can be obtained as follow:

Molarity = mole / Volume

Cross multiply

Mole = Molarity x Volume

Mole of NaCl = 3.1 × 0.2

Mole of NaCl = 0.62 mole

<h3>How to determine the mass of NaCl </h3>

We can obtain the mass of NaCl needed to prepare the solution as follow:

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  • Mole of NaCl = 0.62 mole
  • Mass of NaCl = ?

Mole = mass / molar mass

Cross multiply

Mass = mole × molar mass

Mass of NaCl = 0.62 × 58.5

Mass of NaCl = 36.27 g

Learn more about molarity:

brainly.com/question/15370276

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