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Naturally occuring chlorine has two isotopes, Cl-35, which has an atomic mass of 34.969 amu and Cl-37. If the average atomic mass of chlorine is 35.46 amu and its natural abundance is 75.53%, what is the atomic mass of the Cl-37 isotope?
At 0.0 C, if the volume of air is 2 mL and the pressure of the atmosphere that day is 665 mmHg, what is the number of moles of air?
A compound is composed of elements C, H, and N. A 7.875-mg sample of the unknown compound was combusted, producing 21.363 mg of CO2 and 6.125 mg of H2O. What is the empirical formula for this compound? (Type your answer using the format CxHyNz for..
Using standard reduction potentials, calculate the standard E0 cell, (emf), for each of the following reactions. 1. Show half reactions 2. Balance and gain electrons 3. Write overall reaction of each
A reaction initially contains 0.1 moles of H2(g) and I2(g) in a 1L flask. At equilibrium the final concentration of HI(g) is 0.19M. What is Kp for this reaction.
what is the molarity of a solution prepared by adding 132 grams potassium chloride to enough water
A gas has a volume of 150 ml when its pressure is 0.947 atm. What will the volume of the gas be at a pressure of .987 atm, if the temperature remains constant
What role does ammonium bromide play in the conversion of the trans-substituted aziridine to the diazabicyclo
If several large air bubbles entered the graduated cylinder filled with water when it was inverted into the water trough, what would the effect be on a plot of volume H2(g) vs. mass Mg?
For the reaction:-2 HCl + Na2CO3 - 2 NaCl + H2O + CO2 ,179.2 liters of CO2 is collected at STP.
Which species is the best reducing agent?
Methane has a Henry's Law constant (k)of 9.88 × 10-2 mol/(L·atm) when dissolved in benzene at 25°C. How many grams of CH4 will dissolve in 3.00 L of benzene if the partial pressure of CH4 is 1.48 atm?
How many J of heat are necessary to raise the temperature of a 1.05-kg block of iron from 25.0 C to 88.5 C?
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