Answer:
-484kJ
Explanation:
Carry out bond energy calculation
[6(C-H) + (C=O) +2(C-C)] - [(O-H) +7(C-H)+ (C-O) +2(C-C)]
Substitute the bond energy values = -484kJ
Answer:
Why does this happen?
can the motion of these celestial bodies help in telling time?
does this have something to do with the earth's axis?
4.0 mol. 6.02 x 10. 23 atoms. 3. How many moles are in 2.5g of lithium? 2.5 grams Li. 1 mole. = 0.36 mol. 6.9 g. 4. Find the mass of 4.8moles of iron. 4.8 moles.
Answer:
Mass
Step-by-step explanation:
Usually, you plot the independent variable along the horizontal (x) axis and the dependent variable along the vertical (y) axis.
Marcia's teacher plotted the mass of the sample along the x-axis and volume along the y-axis.
The mass is the independent variable, because that is <em>what the teacher varied</em>.
The volume is the <em>dependent variable</em>, because it <em>depends</em> on the mass.
Sample number is <em>wrong</em>, because it is not a variable.
Substance is <em>wrong</em>, because all samples consist of the same substance.
Density is <em>wrong</em>, because it is constant. It is the slope of the graph.
Answer:
1) D. Dissolved Molecule
2) C. 11.30 M
Explanation:
<u><em>Q1:</em></u>
- Glucose (C₆H₁₂O₆) is a non-polar molecule.
- When it is dissolved in water, it will be a dissolved molecule.
- It can not be ionized in water.
- So, the right choice is: <em>D. Dissolved molecule.</em>
<u><em>Q2</em></u>:
- The molarity is the no. of moles of dissolved solute in a 1.0 L of the solution.
<em>M = (n)solute (1000/V (mL) of the solution)</em>
n of LiCl = 2.60 mol, V = 230.0 mL.
∴ M = (n)solute (1000/V (mL) of the solution) = (2.60 mol)(1000)/(230.0 mL) = 11.30 M.
