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How many moles of sodium hypobromite should be added to 1.00 of 5.0×10-2 hypobromous acid to form a buffer solution of = 9.13? Assume that no volume change occurs when the is added.
What mass of solid sodium formate (of MW 68.01) must be added to 140 mL of 0.3 mol/L formic acid (HCOOH) to make a buffer solution having a pH of 3.77? Ka = 0.00018 for HCOOH.
Calcium carbonate CaCO3 reacts with stomach acid HCL according to the following equation: CaCO3 + HCl --- CaCl2 + H2O + CO2. Tums, antacid, contains CaCO3. If tums is added to 20.0 mL of 4.00M HCl, How many grams of CO2 gas are produced.
the solution at 100 degrees celsius, 10g of water are added, and the solution is cooled to 0 degrees celsius- the number of grams of water required to dissolve a mixture containing 15 g KNO3 and 3.5 g CuSO4 * 5 H20, assuming that the solubility of..
In the reaction 2 C8H18 + 25 O2 ? 16 CO2 + 18 H2O, if the rate of change in the concentration of CO2, ?[CO2]/?t, equals 0.51M/s, what is the value of ?[O2]/?t, the rate of change in the concentration of O2
250.0 ml of 3.0M HCl are added to 400.0 ml of 6M HCl. Assuming that the volumes are additive, what is the final concentration of HCl
what is the final temperature once thermal equilibrium is reached. c) how much ice remains once thermal equilibrium is reached.
Can anyone help with with drawing the net dipole moment vectors from bond dipoles and the net dipole moment vectors
briefly explain why nitrogen is considered to be the most limiting plant nutrient in humid environments. explain the
What is the composition of the vapor of a pentane-hexane solution that has a vapor pressure of 357 Torr at 25C vapor pressures at 25 C= pure pentane is equal to 511 torr, pure hexane equals 150 torr.
Zn(s) + 2AgNO3(aq) --> 2Ag(s) + Zn(NO3)2(aq) When 216 g of silver was produced, determine the mole(s) of silver nitrate would be required.
Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water.
What volume of gold would be equal in mass to a piece of copper with a volume of 140.0 mL. The density of gold is 19.3 g/mL; density of copper is 8.96 g/mL
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