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Addition of 51.5 mL of 2.238 m of H2SO4 (solution density=1.1243 g/mL) to 51.5 mL of 2.238 M BaCl2 gives a white precipitate.
What is the mass of the precipitate in grams?
if oxygen gas were collected over water at 22 c and the total pressure of the wet gas were 650 mm hg what would be the
if 29.7mL of a .205 M KOH solution is required to completely neutralize 25.0mL of a solution of CH3COOH, what is the molarity of the acetic acid solution? CH3COOH(aq)+KOH(aq)>KCH3COO(aq)+H2O(l)
5.97 g of CuNo3 is dissolved in water to make a 0.860 M solution. What is the volume of the solution
The equilibrium internuclear distance of deuterium iodide, DI, is 160.4 pm, where 1 pm = 1x10-12m.The relevant atomic masses are: mD = 2 amu and mI= 127 amu
A gas is compressed, during which 400 J of P-V work is done on the gas. At the same time, it absorbs 150 J of heat from the surroundings. What is the change, E, in the internal energy of the gas
The rate constants of some reactions double with every 10 degree rise in temperature. Assume that a reaction takes place at 295 K and 305 K. What must the activation energy be for the rate constant to double as described
You need to understand the factors that determine whether a reaction is under thermodynamic control or kinetic control and be able to predict the corresponding product.
A sample of iron has a mass of 257.0 lb and a volume of 0.523 ft3. What is its specific gravity? and What are the units of specific gravity?
Iron has a body-centered cubic unit cell, and a density of 7.87 g/cm3. Calculate the edge length of the unit cell, in pm. (The atomic mass of iron is 55.85 amu. Also, 1 amu = 1.661 × 10-24g.)
The frequency of the middle G note on a piano is 392.00 Hz. What is the wavelength of this note in centimeters? The speed of sound in air is 343.06 m/s. Explain steps.
Iodine deficiency can cause a goiter, which is an enlargement of the thyroid gland. You are sent to Pakistan to make field measurements of the concentration of iodide (I-) that is present in groundwater. (a) Oxidize I- in sample to I2 with potassiu..
Magnesium nitride (Mg3N2) is formed by the reaction of magnesium metal (Mg) with nitrogen gas (N2). No other products are produced. (A) How many grams of magnesium nitride can be made in the reaction of 35.00 g of magnesium and 15.00 g of nitrogen..
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