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Determine the resistance values for a voltage divider that must meet the following specifications: The current drawn from the source under unloaded condition is not to exceed 5 mA. The source voltage is to be 10 V, and the required outputs are to be 5 V and 2.5 V. Sketch the circuit.
How many milliliters of oxygen gas at STP are released from heating 2.50g of mercuric oxide? 2HgO(s)?2Hg(l)+O2(g)
A balloon is filled with 5.00 mol of an ideal gas at 50.0 degrees celsius and 1.00 atm pressure. The temperature of the gas is increased to 90.0 degrees celsius while the pressure remains constant at 1.00 atm.
calculate the amount of work produced on the system and by applying the first law of thermodynamic calculate the amount of q of heat transfered from the system to the enviroment,
How many moles of H3O+ must be added to 482 mL of a solution to adjust the pH from 8.80 to 5.56? Use E notation and 3 significant figures.
how do you go from a five membered ring diester to a six member edring fenchone? what steps do you need to
A. Use the dipole moments of HF and HCl ( HF= 1.08 D, HCl = 1.82) together with the percent ionic character of each bond ( HF= 20% ionic, HCl= 45% ionic) to estimate the bond length in each molecule.
Determine the boiling point of the solution If 11.9 grams of a nonelectrolyte with molar mass = 30.5 g/mol are combined with 200.0 grams of the solvent,?
A test tube containing CaCo3 is heated until the entire compound decomposes into an oxide and carbon dioxide gas. If the test tube plus contain calcium carbonate originally weighed 30.08g and the loss of mass during the experiment is 4.40g. What w..
To what final volume should you dilute 60.0 mL of a 5.90M KI solution so that 20.0 mL of the diluted solution contains 3.30 grams of KI
Fluorine has an average atomic mass of 18.998403 u, and chlorine has an average atomic mass of 35.453 u. How many grams of chlorine contain the same number of atoms as 1.00 g of fluorine
If 1 liter of oxygen gas at 0 ?C and 101kPa pressure contains 2.7× 1022 molecules, how many molecules are in 1 liter of hydrogen gas at the same temperature.
Compute the number of liters of Oxygen gas required to produce15.0 liters of dinitrogen trioxide. Assume all gases are at the same conditions of temperature and pressure.
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