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Gre4nikov [31]
3 years ago
6

Edta is a synthetic amino acid, which the body perceives as a foreign substance. edta is therefore delivered to the kidneys and

removed from the body in urine. explain how this process also leads to the removal of heavy metals.
Chemistry
1 answer:
lakkis [162]3 years ago
5 0
EDTA is a synthetic amino acid and is a chelating agent. They are are capable of forming bonds with heavy metals in order to form very complex structures wherein the body could dispose easily in through the urine. It is used in removing lead, mercury, iron, aluminum and many other metals.<span />
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MakcuM [25]

Answer:

c) No, because Celsius is not an absolute temperature scale

Explanation:

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and converting 20 oC to kelvin = 20 + 273 = 293 K

the ratio = 278 / 293 = 0.94 approx 1 not 4

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grigory [225]

The answer to the question :

The atoms of Group B elements _____ electrons when they form ions .

is :

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What is the molarity of a solution that contains 15.0g of naoh per 500.0 ml of solution ​
VARVARA [1.3K]

Answer:

0.4 M

Explanation:

Molarity is defined as moles of solute, which in your case is sodium hydroxide,  

NaOH

, divided by liters of solution.

molarity

=

moles of solute

liters of solution

Notice that the problem provides you with the volume of the solution, but that the volume is expressed in milliliters,  

mL

.

Moreover, you don't have the number of moles of sodium hydroxide, you just have the mass in grams. So, your strategy here will be to

determine how many moles of sodium hydroxide you have in that many grams

convert the volume of the solution from milliliters to liters

So, to get the number of moles of solute, use sodium hydroxide's molar mass, which tells you what the mass of one mole of sodium hydroxide is.

7

g

⋅

1 mole NaOH

40.0

g

=

0.175 moles NaOH

The volume of the solution in liters will be

500

mL

⋅

1 L

1000

mL

=

0.5 L

Therefore, the molarity of the solution will be

c

=

n

V

c

=

0.175 moles

0.5 L

=

0.35 M

Rounded to one sig fig, the answer will be

c

=

0.4 M

8 0
3 years ago
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Answer:

a solution: for example when sugar is dissolved in water it becomes a sugar solution

8 0
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D. Shear. Hope it help!

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3 years ago
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