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A 149-mL bubble of hot gases at 217°C and 1.70atm escapes from an active volcano What is the temperature, in °C, of the gas in the bubble outside the volcano if the new volume of the bubble is 169mL and the pressure is 0.793atm ?
Discuss how one could tell the difference between first order, second order and zero order reactions by graphing the reactant concentration in some way vs time.
The specific heat of iron metal is 0.450 J/g-K. How many J of heat are necessary to raise the temperature of a 1.05-kg block of iron from 25.0 Celcius to 88.5 Celcius
Using K=3.9 as the equilibrium constant, Keq, Compute the amount of Isoamyl acetate, also known as isopentyl acetate (C7H14O2 )that must be present at equilibrium.
calculate the work required to expand the cell surface. Assume the cell is surrounded by water and that T=310K.
Quantitative analysis of an unknown organic compound showed it to contain only C, H, and Cl. Combustion analysis of a 0.01869g sample of the compound yielded 0.00986g CO2 and 0.00396g H20. What is the simplest empirical formula for the compound
A saturated sodium carbonate solution at 100?C contains 45.5 g of dissolved sodium carbonate per 100. mL of solution. The solubility product constant for sodium carbonate at this temperature is
n the answer blank to the right of the equal sign, enter in an expression for the mass of the species leaving the given element. Put your responses in terms of numeric mass fractions and the mass flow rate variables. Do not include units in your r..
Calculate the volume of glacial acetic acid needed to make 1L of the buffer. Glacial acetic acid is 99.5% acetic acid
Explain how many ml of .250MNaOh will it take to neutralize 10.0ml of .100M hydrochloric acid (HCL). Explain how many ml of .250MNaOH will it take to neutralize 10.0ml of .100M hydrofluric acid (HF)
The metal hydride LiH has a density of 0.77 g/cm3 . The edge of the unit cell is 4.086 . If it is assumed that the H ions define the lattice points, does the compound have a face-centered cubic or a simple cubic unit cell?
Question- A chemist mixes 28.8g of water with 61.4g of 2-methylpyrazine and 25.6g of acetone. Calculate the percent by mass of each component of this solution. Approximate each of your answers to three significant digits.
while mercury is very useful in barometers mercury vapor is toxic. given that mercury has a hvap of 59.11 kjmol and
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