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A 787 mL gas sample at STP is compressed to a volume of 226 mL, and the temperature is increased to 29?C. What is the new pressure of the gas in Pa?
Determine how much fluorine was formed if A sample of NaF(sodium fluoride) produced 26.5 grams of sodium upon decomposition? express your answer (in grams)
Assume the radius of a neutron to be approximately 1.0; times ;10^{ - 13} {rm cm}, and calculate the density of a neutron.
A lime-soda softening plant treats a flow of 150 MGD, and the water has 86 mg/l CO2. The commercial grade of quicklime has a purity of 85% and the soda ash has a purity of 95%.
The design calls for reheating the liquid after the temperature has dropped to seventy degree Celsius the determine about how many stags and how many heaters are required for this process?
Compute the difference in the ionization energies for the 1H 2H atoms(The ionization energy is the energy of the transition from the n=1 to the n=infinity energy levels for the hydrogen atom. )?
Explain how does unique physical and chemical properties of water contribute to significance of water for life on Earth to survive.
Suppose 5.00g of Ca is added to 50.0mL of 1.00M HCL. Determine the limiting reactant in this case and number of moles of calcium actually consumed.
Evaluate the electronic configuration for ionization energies of Magnesium, the orbital number in which the electrons are added in phosphorus ion, and the one will lose in the ionization of Alluminium.
Find the contact time for inactivating Gardia cysts - How much contact time would be required for inactivating Gardia cysts
Find the mass of the substance and the volume of a gas in a reaction - determine the mass of solid ammonium nitrate that must be used to obtain 0.145 L of dinitrogen oxide gas at STP.
Calculate the molar solubility of FeCO3 . How many grams of FeCO3 are present in 15.0 L of a saturated solution.
Multiple choice questions in organic chemistry - Which of the following statements are true about the processes of melting and freezing?
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