Answer:
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Answer:
Dissolve 47.025 grams of sucrose in enough water to produce 250 ml of solution.
Explanation:
You need to prepare 250. mL of a 0.550 M aqueous solution of sucrose, C12H22O11 (aq),
which is used frequently in biological experiments.
Based on your answer above, what is the value of x?
Solution:
A 0.550 M aqueous solution contains 0.550 mole of sucrose per liter of solution.
250 ml = 0.250 liter
Thus a 0.250 liter of a 0.550 M aqueous solution of sucrose contains 0.250 * 0.550 = 0.1375 mole of sucrose
Recall:
Mass = number of moles * mass of 1 mole
mass of 1 mole of C12H22O11
= 12(12) + 1(22) + 16(11)
= 144 + 22 + 176
= 342 grams
Mass = 0.1375 * 342 = 47.025 grams of sucrose.
Dissolve 47.025 grams of sucrose in enough water to produce 250 ml of solution.
Answer:
D) Vasopressin
Explanation:
Neurohormones are defined as those hormones which are reeased from the and secreted in to the blood.
Vassopressin is also a neurohormone released from the hypothalamus and secreted by the neurohyphophysis also called posterior loop of pituitary gland in to the blood and then act on the target organ. Vasopressin is also called anti diuretic hormone its function is to maintain osmolality (the concentration of dissolved particle such as salt in the serum).Its main site of action is kidney to absorb water and not to allow much water to loss trough the urine.Thus it help in maintaining water level and mineral maintenance in the body (homeostasis)
When glucose is taken into the cell, the fluids or solutions in the cell become more concentrated (due to the absorbed glucose) than the fluids outside the cell. When this happens, a natural process called osmosis takes place .
Osmosis is defined as the movement of molecules of a solvent (in this case water) through a semi-permeable membrane (in this case the cell membrane) from a less concentrated solution to a more concentrated one in a bid to to equalize the concentration on both sides of the membrane.
Water will therefore leave the less concentrated solution outside the cell, pass through the cell membrane and into the more concentrated solution.
Chaparral <span>is a semiarid biome found in many coastal regions that border deserts. </span>