Answer:
Explanation:
The major regulation, regulatory, and communicating system in the body is the nervous system. It is the foundation of all mental operation, including thinking, learning, and memory. The nervous system, along with the endocrine system, is responsible for controlling and sustaining homeostasis.
Answer:Figure 1. Energy losses in an incandescent light bulb are very large; most of the input energy is lost in the form of heat energy. This means that when energy is converted to a different form, some of the input energy is turned into a highly disordered form of energy, like heat. ...
Explanation:
Answer:
Explanation:
molecular weight of N₂H₄ is as follows
2 x 14 + 4 x 1 = 32
so 32 gram of N₂H₄ is equal to one mole of N₂H₄
25 gram of N₂H₄ will be equal to 25 / 32 mole of N₂H₄
so numerical quantity needed to convert grams of N₂H₄ to mole is
1 / 32 or .03125 . This number needs to be multiplied with grams of N₂H₄
to convert it to number of moles.
Answer:
253 mmol
Explanation:
The solubility is calculated by the given equation:
S(g) = k P(g)
where k = 1.3 x 10⁻³ mol/L-atm
and P(g) = 0.21 (705 mmHg/760 mmHg/atm) = 0.195 atm
Notice the pressure is converted to atm because Henry´s constant is in units of atmospheres , and also we multiplied by 0.21 oxygen composition.
S(g) = 1.3 x 10⁻³ mol/L-atm x 1000 mmol/mol x 0.195 atm x =253 mmol
Here we did multiply by the factor 1000 mmol/mol since the mmol concentration is required in the answer.