If we add 1 mole of acetic acid (carboxylic acid), then we will not obtain 1 mole of hydrogen ions or 1 mole of ions in the solution. This shows that carboxylic acid does not dissociate completely in water. Hence, carboxylic acid is a weaker acid than the inorganic acids. Hence, the given statement is true.
B. Erosion, weathering, and deposition
Answer: 3378.4mL
Explanation:
density of Gasoline = 0.74g/mL.
Volume of gasoline in milliliter = ?
mass of gasoline = 2.5kg
(Since density is in grams per millilitre, convert mass in kilograms to grams)
If 1kg = 1000grams
2.5kg = 2.5 x 1000 = 2500grams
Recall that density is obtained by dividing the mass of a substance by its volume
i.e Density = Mass / Volume
0.74g/mL = 2500grams/Volume
Volume = (2500 grams / 0.74g/mL)
Volume = 3378.4mL
Thus, the volume of gasoline is 3378.4mL
At STP, P = 1 atm, and T = 0 C
Thus, PV = nRT => V = nR(273). We will use this later...
if you have 35.4 Ca, and the molar mass of Ca is 40.08, you get .883 moles Ca. Thus, since it takes 2 moles of Ca to form a reaction, you only need half the moles of Ca of O2. Thus, n(O2) = .883/2
Tie this back to the first equation and you get
V = .442 * <span>0.082057(which is R) * 273 = 9.9 L</span>
Many species of plants can absorb heavy metals: those with atomic number greater than 20.
Some are essential for plant growth. These include
Mg, Mn, Fe, Ni, Cu, Zn, and Mo
Plants can absorb other heavy metals, but we don’t know their biological function. Among these are:
Co, Se, Cr, Cd, Ag, Hg, and Pb