The molecular mass of
is:
2·1 + 1·32 + 4·16 = 98 g/mol
The amount of solute, expressed by mol, is:

The molar concentration definition is: 
Doing the calculations:

(If you detect any mistakes in my English report me them, please).
Answer: 7382 milliliters
Explanation:
1 quart = 946.35 milliliters
Therefore, 7.80 quarts • 946.35 = 7381.55
Round .55 and it becomes 7382 milliliters
Answer: 0.85075J/g.K
Explanation:
Mass of the material = 100g
Energy (Q) = 5104.5J
T1 = 20°C = 293K
T2 = 80°C = 353K
Formula for heat energy (Q) = mc ∇T
Q = mc∇T
∇T = T2 - T1
∇T = 353K - 293K = 60K
Q = mc∇T
C = Q / m∇T
C = (5104.5) / (100 * 60)
C = 0.85075 J/gK
The specific heat capacity of the material is 0.85075J/gK.
Wind carries sand up the windward side of the dune and drops it over onto the leeward side. I hope this helps.
If im not mistaken plant cells go through a stage called photosynthesis meaning the cells can create it's own energy (food) off of water, Co2 and sunlight.