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What is the relationship betweet concentration and volume in the formula Ci Vi = Cf Vf what is the relationship between initial number of moles and final number of moles of solute?
what is the diameter in micrometers of a spherical inknbspdroplet from an early version of an ink-jet printer if the
A hydrocarbon gas contains 81.71% carbon and 18.29% hydrogen, by mass. At STP. 4.20 L of the gas has a mass of 8.27 g. What is the molecular formula for the compound
What is the total pressure in a 20.0 L flask 20.0°C, which contains 0.127 moles of H2 and 0.288 moles of N2?
Solid barium nitrate is slowly added to 175mL of a 0.0414 M ammonium carbonate solution. Explain what is the concentration of barium ion necessary to just initiate precipitation is
How many milliliters of 0.150 M Na2S2O3 solution are needed to titrate 2.433 g of I2 to the equivalence point
If a 100.00 g sucrose solution has a boiling point of 101.5oC, how many moles of sucrose are in the solution. How many grams
chemiluminescence reaction will actually occur very slowly in air. What component of air will bring about this reaction and what is its approximate concentration in air?
What will happen when a HCl (aq) solution is added to a Na2CO3 (aq) solution? Explain and give the molecular and net ionic equations for the reaction.
Question- how many grams of potassium hydrogen phthalate (KHP) will be required to completely neutralize 50 mL of 0.15 M NaOH solution
Write lewis dot strutures of I2O5 and Cl2O5. Based on the trends in atomic radii, predict whether the I-O bond length will be longer or shorter than the Cl-O bond.
Estimate the mass of water that must evaporate from the skin to cool the body by 0.50^circ C. Assume a body mass of 85 kg and assume that the specific heat capacity of the body is 4.0 {rm{J}}/{rm{g}}; cdot ;^circ {rm{C}}.
The standard change in Gibbs free energy is dekta G° = -69.0 kJ/mol. What is delta G for this reaction at 298 K when the partial pressures are-
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