Answer:
0.116
Explanation:
The molar mass of ethanol is 46.07 g/mol. The moles corresponding to 25.0 g are:
25.0 g × (1 mol/46.07 g) = 0.543 mol
The molar mass of water is 18.02 g/mol. The moles corresponding to 75.0 g are:
75.0 g × (1 mol/18.02 g) = 4.16 mol
The total number of moles is:
total moles = mol ethanol + mol water = 0.543 mol + 4. 16 mol = 4.70 mol
The mole fraction of ethanol is:
X(Ethanol) = mol ethanol / total moles = 0.543 mol / 4.70 mol = 0.116
after a volcanic eruption is the answer
Mudflows of volcanic eruptions are the most dangerous, and are called lahars
Answer:
8.6 mL
Explanation:
<em>Glacial acetic acid</em> (or anhydrous acetic acid) can be thought of as pure acetic acid, and has a density of 1.05 g/cm³ (or g/mL).
To answer this problem first <u>we convert moles of acetic acid </u>(CH₃CO₂H) <u>to grams</u>, using its molar mass (60 g/mol):
- 0.15 mol acetic acid * 60 g/mol = 9.0 g acetic acid.
Now we <u>convert grams of acetic acid to mL, using its density</u>:
- 9.0 g ÷ 1.05 g/mL = 8.6 mL
Answer:
T-A-A-C-G-A or just TAACGA
Explanation:
A=T
G=C
C=G
T=A
This is the answer key to all complementary <em>DNA</em> strands.
Hope this helps you out.
Don't you think that element is ferrous i mean iron.