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Which solution is expected to deviate from the straight line in a Beer's law plot: the more concentrated solution, the more dilute solution, or both? And why is that the case?
Vinegar, which is just a dilute acetic acid solution, is very common and versatile. The concentration of store-bought vinegar, around a 5.0% solution by mass, and its density is approximately 1.01 g/mL
What is the molarity of the acetic acid in this vinegar. If the density of the vinegar is 1.006 g/ml, what is the mass percent of acetic acid in the vinegar
Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 2.30 MJ of energy (in the form of heat) if the temperature of the sodium is not to increase by more than 10.0 °C?
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 550 mL of a solution that has a concentration of Na+ ions of 0.600 M
Pure benzophenone freezes at 48.1 celcius of 1.25 g of biphenyl (C12H10) molar mass= 1542 g/mol) with 25.38 g of benzophenone forze at 16.8 celcius. calculate the molarity of the solution (m) and the molal freezing point depression constant (Kf). ..
What is the molecular weight of a gas if a 250 mL sample of this gas collected over water at 735 mm Hg and 28.0°C has a mass of 1.25 gram? The equilibrium vapor pressure of water at 28.0°C is 28.3 mm Hg.
For the reaction (S2O8)2- + 3I- yields (I3-) + (SO4)2- What is the oxidation state of sulfur
An element has an atomic number of 114 and an atomic mass of 285. How many protons, neutrons, and electrons does a neutral atom of this element have
In the Bohr model of the atom, each of these bands corresponds to a transition from a particular quantum orbital energy level to another (n = 1, 2, 3,...). For mercury, which observed color band corresponds to the largest energy difference between..
What are the transition metals in a periodic table ?
In addition, presume that each activated adenylyl cyclase catalyzes the conversion of 20 ATP molecules to cAMP per second. Presume that each G protein activates a single unique adenylyl cyclase. Compute the number of moles of cAMP that are produce..
Calculate the mass of ethylene glycol (C2H6O2) that must be added to 1.00 kg of ethanol (C2H5OH) to reduce its vapor pressure by 12.0 torr at 35C. The vapor pressure of pure ethanol at 35C is 1.00x10^2 torr.
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