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What causes osmotic pressure to increase? what is the difference between 1 mol and molality? between 1 mole of NaCl and 1 mole of sucrose? what is the difference between these properties in a solution?
Given the formula M1V1=M2V2 1.)What is the final volume in milliliters when 0.850L of a 21.5M solution is diluted to 14.5M ? 2.) A 856mL \rm NaCl solution is diluted to a volume of 1.02L and a concentration of 6.00\it M . What was the initial conc..
What is the wavelength (in nm) of the photon absorbed for a transition of an electron from n_initial=1 that results in the least energetic spectral line in the ultraviolet series of the H atom
How many liters of CO2 at 0 °C and 380 torr are obtained in the reaction of 3 g of ethane with excess O2
Ethylene glycol,C2H4(OH)2, is a colorless liquid used as automobile antifreeze. If the density at 20 degree Celcius of a 4.028m solution of ethylene glycol in water is 1.0241g/mL, What is the molarity of the solution
A mixture of gases containing 21.0 g of N2, 106.5 g of Cl2, and 12.0 g of He at 14 oC is in a 50.0 L container. What is the partial pressure of N2.
As a separation and detection method, would TLC or paper chromatography yield better results in the analysis of each of the following pairs of compounds
Consider the two diagrams showing the energies (boxes) of each of four A particles and four B particles shown below. The dotted lines represent the allowed energies of each particle.
A 7.31 liter sample of a gas at 50 degrees celsius and 2.82 atm pressure is subsequently compressed to 0.546 liters. in response to being compressed, teperature increases to 72 degrees celsius. what is the pressure of the gas after compression
3.5 g of a hydrocarbon fuel is burned in a vessel that contains 250. grams of water initially at 25.00 C. After the combustion, the temperature of the water is 26.55 C. How much heat is evolved per gram of fuel burned?
When most Fe^3+ salts are dissolved in dilute nitric acid, the solution is often yellow to orange-yellow in color. Why could you not visually detect these colors in Fe(NO3)3 stock solution
For the reaction 2CaSO4(s) ? 2CaO(s) + 2SO2(g) +O2(g), K= 0.032atm^3 at 700K. What is the total pressure in atm starting from a mixture of 70% CaSO4 (s) and 30% CaO(s).
The rate constant for the following equation is 0.0391 M-1 · s-1. We start with 0.238 mol C2F4 in a 4.00-liter container, with no C4F8 initially present. 2C2F4 ?C4F8.
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