Methanol has severl uses few of which are discussed below.
Methanol is the simplest alcohol with chemical formula CH3OH. Its nin drinkable because its toxic when consumed.
Methanol is used for preparing acetaldehyde, formaldehyde, butandiol, acetal resins etc which are used for production of furthur high specific chemicals with high rate of purity. Its also used widely in automobile industry.
Its used to produce acetic acid, solvent esters and acetates, terepthalic acid, etc which are used in automobiles, paint industry, ink industry etc.
Its used in preparation if zero emmision fuels. Its also used to produce antifreeze, lubricants, burning alcohol, spirit etc.
Its also used to produce different cleaners and canned heat.
Its used to dress wounds, for preparation of MMA, MTOs etc.
B. lungs
C. skin
D. brain
The organ that is not considered a part of the excretory system is the brain and the correct option is option D.
The excretory system primarily consists of organs and structures involved in the elimination of waste products from the body. The kidney, lungs, and skin are all essential components of the excretory system.
The kidney plays a central role in filtering waste products from the blood and producing urine. The lungs are responsible for the elimination of carbon dioxide, a waste product of cellular respiration, through the process of breathing. The skin, through sweat glands, helps eliminate metabolic waste products such as urea and excess salts through perspiration.
On the other hand, the brain is primarily involved in regulating and coordinating various bodily functions, including cognition, movement, and sensory processing. While the brain plays a crucial role in overall body functioning, it is not directly involved in the excretion or elimination of waste products from the body.
Thus, the ideal selection is option D.
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Answer:
D. BRAIN
Explanation:
The human excretory system includes the lungs, the skin, and the urinary system (kidneys, ureters, bladder, and urethra).
Answer:
0.60 mol·L⁻¹
Explanation:
Data:
LiBr: c = 0.50 mol/L; V =300 mL
RbBr: c = 0.70 mol/L; V =300 mL
1. Calculate the moles of Br⁻ in each solution
(a) LiBr
(b) RbBr
2. Calculate the molar concentration of Br⁻
(a) Moles of Br⁻
n = 0.150 mol + 0.210 mol = 0.360 mol
(b) Volume of solution
V = 300 mL + 300 mL = 600 mL = 0.600 L
(c) Molar concentration
The concentration of Br ions in the resulting solution of LiBr and RbBr has been 0.6 M.
The addition of LiBr and RbBr has been dissociated into the equal moles of Li, Rb, and Br.
Thus 1 mole of LiBr = 1 mole Br
1 mole RbBr = 1 mole Br.
The moles of LiBr in 0.5 M solution:
Molarity =
0.5 =
Moles of LiBr = 0.15 mol
The moles of Br from LiBr = 0.15 mol.
The moles of RbBr in 0.7 M solution:
Molarity =
0.7 =
Moles of RbBr = 0.21 mol
The moles of Br from RbBr = 0.21 mol.
The total moles of Br ions from LiBr and RbBr has been :
= 0.15 + 0.21
= 0.36 mol.
The total volume of the solution will be:
= 300 + 300 ml
= 600 ml.
The concentration of the Br ion has been:
Molarity =
Molarity of Br ions =
Molarity of Br ions = 0.6 M.
The concentration of Br ions in the resulting solution of LiBr and RbBr has been 0.6 M.
For more information about the concentration of the sample, refer to the link:
Answer:
its indeed (B)
Explanation: