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39 ml of .2 M HCL and 50 ml of .4 M NaOH are mixed. After mixing, but before they react, what is the new M of the HCL and NaOH?
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:
What is the pH of an 85 mL solution containing .215 M NaHCO3 and .203 M Na2CO3?
If the methane contained in 4.00 L of a saturated solution at 25 C was extracted and placed under STP conditions, what volume would it occupy?
A layer of iron(III) oxide forms on the nail, increasing the nail's mass. How much oxygen has reacted with the iron if the mass of the nail has increased to 5.89 g?
Consider the following combustion reaction: 2C4H10 + 13O2 -> 8O2 + 10H20. 125 g of C4H2O react with 415g O2.
A rigid tank contains 20 lbm of air at 20 psia and 70F. More air is added until the pressure and temperature rise to 35 psia and 90F
What is the concentration of OH- in a solution that contains 0.225g of NaOH in 0.250L of solutio.
Given the general formula of a hydrate, Z. nH2O, which variable represents the anhydrous salt? the number of water molecules in each hydrate crystal?
Find the pH of a 0.135 M aqueous solution of periodic acid (HIO4), for which
What is the pH of the solution created by combining 11.20 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?
What pressure is exerted by 0.625-mole of a gas in a 45.4-L container at -24.0°C?
Calculated what is the pressure in atm using the van der Waals' equation for Oxygen gas under these conditions? For O 2 , it is given a = 1.360 L2atm/mol2 and b = 3.183E-2 L/mol.
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