0.0013% = 0.0013 g/100 ml water, or 1.3 mg/100 ml water
so for 145 mg, you need 145×100/1.3 = 11154 ml water or 11.154 L of water. Lead is a toxic metal that affects the central nervous system.
Extensively talking, the frightened gadget is organized into essential parts, the central nervous system(CNS) and the peripheral nervous system (PNS). The CNS is the processing center of the frame and includes the mind and the spinal cord. Both of these are protected through 3 layers of membranes referred to as meninges.
The principal anxious gadget is the frame's processing center. The brain controls most of the capabilities of the frame, inclusive of cognizance, movement, thinking, speech, and the five senses of seeing, listening to, feeling, tasting and smelling. The spinal twine is an extension of the mind.
The brain is what controls all the frame's features. The spinal twine runs from the brain down via the again. It carries threadlike nerves that department out to each organ and frame part. This network of nerves relays messages from side to side from the mind to distinctive parts of the body.
Learn more about central nervous system here:- brainly.com/question/2114466
#SPJ4
On the basis of given data:
Mass of solvent (benzene) = 100 gm or 0.1 Kg
Molar mass of solute (solid) = 89 g/mol
Increase in boiling point (deltaTb) = 2.42 degree C
The boiling point elevation constant k = 2.53 C.kg/mol
There is a need to determine the mass of the solid to be added, the elevation in boiling point is proportional to the m (molality) of the solute;
ΔTb = k.m
Here, m that is molality = moles of solute/kg of solvent
Therefore,
ΔTb = k (benzene) × moles of solid/kg of benzene
2.42 = 2.53 × moles of solid/0.1
moles of solid = 0.0956 moles
The molar mass of solid = 89 g/mol
Thus, the mass of solid = 0.0956 moles × 89 g/mol
= 8.508 g
Thus, the mass of solid to be added is 8.508 g.
Answeeeeer:
A. cell
Explanation:
Since A is the smallest in the chart, that would correspond to the cell because thats the smallest out of Tissue, Organ and Organism.
Explanation:
At STP ,2.24 L contain 0.1 mole of N²
<h2>So,No. of molecules of N2 = 6.022*10²²</h2>
