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What volume of 3.00M HCL in liters is needed to react completely (with nothing left over) with 0.250 L of 0.500 M Na2CO3
solution requires 18.6 mL of 0.200 M NaOH to reach the end point of the titration, what is the molarity of the acetic acid solution? CH3COOH (aq) + NaOH(aq) CH3COONa (aq) + H2O(l)
2 NO(g) + O2(g) 2 NO2(g) In one experiment 0.633 mole of NO is mixed with 0.354 mole of O2. Calculate also the number of moles of NO2 produced.
Identify the following systems as open, closed, or isolated. i) Coolant in a refrigerator coil ii) The combustion of liquid hexane in a bomb calorimeter
Energy level of electrons in atoms - The 3s level in hydrogen has a lower energy than the3d level in hydrogen.
I need help describing an experiment where one could measure the value of the extinction coefficient of a solution with a concentration (c mol/L) of chlorophyll in water for a given wavelength.
2 NaClO3-> 2 NaCl + 3 O2 Determine the number of moles of O2 produced by the decomposition of 213 g of NaClO3.
Calculate the amount of energy in kilojoules needed to change 423g of water ice at -10 deg c to steam at 125 deg c . The following constants may be useful:
How many joules are released when 6.94 moles of water cools from 100.0 degrees Celsius to 0.0 degrees Celsius?
Calculate the P-Cl bond energy, given the following reaction and the average bond dissociation energy of chlorine as 240kJ/mole.
CaCN2 + 3H2O -> CaCO3 + 2NH3 . How much NH3 is produced if 187 g of CaCO3 are produced?
What mass (in grams) of steam at 100°C must be mixed with 375 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 66.0°
A new potential heart medicine, code-named X-281, is being tested by a pharmaceutical company, Pharma-pill. As a research technician at Pharma-pill
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