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Room temperature is often assumed to be 25 degrees celcius calculate the molar volume of an ideal gas at 25 degrees celcius and 1 atm pressure
What is the internal energy (U) change of a system that emits 358 J of heat and receives 412 J of work
how many kilojoules are needed to raise the temperature of 325 g of water from 15.0c to 77.0c? how many kilojoules are
For a formaldehyde and bisulfite reaction, discuss in detail the effect of changing the concentration on reaction rate with respect to each reactant
If the volume of a gas container at 32.0°C changes from 1.55 L to 755 mL, what will the final temperature be
calculate the percent of a strontium sample left after 100 years. the half-life of strontium-90 is 28.1
20 ml Calcium Hydroxide solution was titrated with 9.8 ml 0.0105 M HCl in according to reaction: Ca(OH)2 + 2HCl ? CaCl2 + 2H2O What is the Molarity of Ca(OH)2 in the solution
Explain how you would prepare 500.0mL of a solution that is 0.100M H2SO4 from concentrated 18.0M H2SO4, which is a liquid density 1.82 g/mL.
Calculate the solubility (in M units) of ammonia gas in water at 298 K and a partial pressure of 9.00 bar . The Henrys law constant for ammonia gas at 298 K is 58.0 M/atm
Given that the radius of the O2- ion is about 140 pm in most oxides, calculate the radius of Mg2+, in pm. Your solution should include a sketch one face of the unit cell of MgO to show how the edge length of the unit cell is related to the ionic r..
A sample of gas occupies 15.0 liters at 4.00 atmospheres and 300 K. What is the new volume of the gas if pressure is decreased to 2.00 atmospheres and temperature is increased to 400 K?
if the mass of the tablet analyzed from the previous question was 1.247 grams what is the mass effectiveness of the
How many milliliters of 0.105 M HCl are needed to titrate 50.0 mL of a solution that contains 1.25 g of NaOH per liter?
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