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A 355 m-L container holds .146 g of Ne and an unknown amount of Ar at 35 degrees C and a total pressure of 626 mmHg. Calculate the moles of Ar present.
What is the final concentration of Na+ if 250 ml of 0.3 M Na Cl is added to 750 ml of 0.125 M Na2SO4?
What is the molar solubility of Hg2C2O4 (Ksp = 1.75x10^-13) in 0.34M Hg2(NO3)2
Determine the molarity of a saturated NaI Sodium iodide solution (aqueous) formed as twenty five degree Celsius
2I2 + N2H4 4HI + N2 a.How many grams of I2 are needed to react with 36.7 g of N2H4?
Calculate the molarity of 736 mL of a solution that contains 153 g of sucrose C12H22O11.
Determine what type of bond is expected for a compound formed between Magnesium and Oxygen Based on these values,?
What is the molarity of ZnCl2 that forms when 30.0 grams of zinc completely reacts with CuCl according to the following reaction? Assume a final volume of 275.
Calculate the energy change when one 235U nucleus undergoes the fission reaction 235U + n -> 142Ba + 92Kr + 2 n . The masses needed are 235U : 235.04 u; 142Ba : 141.92 u; 92Kr : 91.92 u; n : 1.0087 u.
Determine how many pills does the female require to take each time she wants the dosage of 375miliigrams?
A gas is compressed from initial volume of 5.60L to 1.23L by an external pressure of 1.00atm. During the compression the gas releases 128J of hear. What is the internal energy of the gas?
A sample mixture of CH4 and C2H6 weighing 0.732 g burned to give 2.064 g CO2. What is the mass of CH4 in the mixture.
What does a yellow flame in the Bunsen burner indicate? How can this be corrected? Why use a funnel to transfer large volume of liquid from one container to another?
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