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A balloon is filled with He(helium) of 500.0mL at 27 0C and 755 mm Hg. in the atmosphere when the balloon rises, the drop in the pressure and temperature was measured then determine volume it would have if it reaches an altitude where the temperature = -33 0C , pressure = 0.65 atm?
To determine the molecular formula of a compound - gas was mixed with calcium chloride solution,
Explain briefly that how HCl could test for limestone's presence , use the balanced chemical equation for this and then describe specific reaction that takes place?
Draw Lewis dot structure and predict molecular geometry - Show the Lewis structures of the following molecules and then predict their geometry.
Compute the free energy change needed for transport of sufficient protons to make gastric juice of 1 litter at the temperature of 37 degree celsius hence expect above reaction will happen spontaneously?
find out the ΔH rxn for the given reaction as C 3 H 4 (g) + 2 H 2 (g) → C 3 H 8 (g)
carbon dioxide escapes due to A leak , leaving only 3.5 moles of CO 2 inside the balloon. Determine the new volume of the balloon?
If a nonvolatile, yellow crystalline solid sample of 0.351 g is dissolved in benzene (C 6 H 6 ) of 15.8 g formed a solution. this solution freezes at the temperature of 4.77 degree celsius.
Determine the molar mass of aspartame and How many moles of molecules are in 10.0g of aspartame?
Determine how many moles of the ANION are present in this resulting solution If 4 moles of the ionic compound get dissolved in this reaction?
Find the volume of oxygen gas required to react completely with iron and Calculate the volume of oxygen gas at STP that is required to completely react with 61.0 g of iron.
Calculate the number of bromine molecules present in the flask if A flask contains 0.350mol of bromine, Br2 in liquid form .
Determine the second order rate constant from the initial concentration and half life and what is the second order rate constant?
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