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you are holding 2 balloons, an orange balloon and a blue balloon. the orange balloon is filled with neon gas and the blue one is filled with argon gas. The orange balloon has twice the volume of the blue ballon. What is the mass ratio of Ne:Ar in the balloons?
if 8.40 grams of C are burned, how much heat will be released for the following balanced reaction: C + O2 -> CO2 + heat (393 KJ)
What is the approximate value of the equilibrium constant, Kn, for the neutralization of hydrochloric acid with sodium hydroxide, shown in the equation below? HCL(aq) + NaOH(aq) --> H2O (l) + NaCl (aq)
layered 20 mL of 2% sebacoyl chloride (decanedioyl chloride)/hexane on top of the aqueous solution. And then we used forceps to draw the solid that forms at the interface A(nylon) into a thread and wound the thread around a test tube. (It was whit..
A 1.0 L solution has a mixture of 0.05 M NaH2PO4 (pKa = 6.86) and 0.10 M Na2HPO4. How much 1.0 M NaOH should be added to bring the solution to pH 7.4?
The final temperature of the water is 27.8°C. Calculate the mass of water in the calorimeter. The correct answer should be 6.2x10g
What mass of glucose C6H12O6, would be required to prepare 5.000 X 10^3 L of a 0.215 M solution.
A 391-rm mL sample of unknown rm HCl solution reacts completely with rm Na_2CO_3 to form 20.1 g rm CO_2. What was the concentration of the rm HCl solution?
Calculate the molality of a solution prepared by dissolving 112. grams of copper (II) sulfate in 450. mL of water at 25°C.
Pb atom is ionized using a photon of ultraviolet radiation having an energy of 1.86E-18 J, what is the amount of leftover energy that goes into the kinetic energy of the ejected electron
Write the charge balance eqtn for a saturated soln of CdCO3. Hint: there are 4 relevent chemical eqtns
The calculations are based on the principal components of meat being fat ( acetone soluble) and protein (acetone insoluble or fat-free meat in report sheet ).information, the calculations correctly calculate what quantity, % fat or % fat-free meat..
Carryout the following conversions. Report your answer to the correct number of significant figures
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