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Explain what is the concentration of HF if 24.21mL of 0.1009 M NaOH are needed to neutralize 25.00mL of HF
Bromine addition to trans-cinnamic acid, During bromine addition to trans-cinnamic acid, why is it necessary to maintain excess bromine in the reaction mixture
The osmotic pressure of an aqueous solution at 300 K is 120 kPa. Calculate the freezing point of the solution.
A 500-g sample of Al2(SO4)3 is reacted with 450 g of Ca(OH)2. A total of 596 g of CaSO4 is produced. What is the limiting reagent in this reaction, and how many moles of excess reagent are unreacted?
KClO, find out the molar mass for this compound and the oxidation state of chlorine in it. State the oxide formula of chlorine for the corresponding oxidation state. Find out whether this oxide will react with HCL, NaOH and write the corresponding..
Radio waves travel at the speed =3.00 108 m/s(speed of light,). if Saturn is 7.9 108 km from Earth then Determine how many minutes does it take for a radio message to reach Earth from Saturn?
Does the incandescent light bulb convert all of the electrical energy to light. Observe a functioning incandescent light bulb, and explain what occurs with reference to the Law of Conservation of Energy
What is the pH of a solution which is 0.021 M in weak base and 0.039 M in the conjugate weak acid (Ka = 7.1 Ã- 10â€"6)? pH=?
A gas mixture contains 75.2% nitrogen and 24.8% krypton by mass. What is the partial pressure of krypton in the mixture if the total pressure is 884mm Hg
What is the mass concentration of water vapor in the atmosphere at 25oC when the relative humidity is 60% and the saturation vapor pressure is 2800 Pa
the atomic weight of a newly discovered element is 98.225 amu. it has two naturally occuring isotopes. one isotope has
a 50.0 ml sample of vinegar density 1.06 gml was diluted to 500.0 ml.nbsp titration of a 50.0 ml aliquot of this
What is the label for the orbital shown here that indicates the type of orbital and its orientation in space
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