Answer:
number of moles= 0.844 moles
Explanation:
Number of moles of Hydrogen atom = given mass / molar mass
given mass= 0.850 g
Molar mass= 1.007 g
number of moles= 0.850/1.007 = 0.844 moles
I think the answer would be d but not 100% sure
Answer:
Explanation:
Hello there!
In this case, for these problem about the colligative property of freezing point depression, it is possible set up the following equation:
Whereas the van't Hoff's factor, i, is 2 since KCl is ionized in two ions (K+ and Cl-); and the molality (m) of the solution is computed by:
Thus, since the freezing point of water (ice) is 0°C, we obtain the following freezing point of the solution by plugging in:
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Answer:
the diaphragm and rib muscles contract
Explanation:
Inhalation is the set of movements that allows air to enter the lungs. In this process occurs the contraction of the diaphragm, causing its lowering. The intercostal muscles also contract causing the ribs to lift. This causes the chest to grow larger and the internal pressure of the lungs to become smaller than the external. With the reduction of intrapulmonary pressure, air ends up entering the airways and reaching the alveoli for gas exchange to occur.
Answer:
what is the English translation, id like to help
Explanation: