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Consider the following reaction: H3PO4(aq)+3NaOH(aq)--- Na3PO4(aq)+3H2O(l)
Determine the molarity of the acid solution, if 10ml of phosphoric acid solution requires the addition of 17.5ml of a .200 M NaOH to reach the endpoint.
We obtained the above 10ml solution by diluting a stock solution using a 1ml aliquot and placing it into a 25ml volumetric flask and diluting to 25ml prior to removing the 10ml sample used above. what was the molar concentration of phosphoric acid in the original stock solution?
What percent of a sample of cesium-137 (first order beta negatron decay with t1/2 = 30 years) remains after 100 years? What is the product
The plasma (HCO3-) of an individual living at a high elevation is 18.5 meq/L. If this concentration of bicarbonate fully compensates the decrease
The average human is 62 kg. There are about 6 billion people on the planet. In one week period explain what is the total increase in entropy of the universe coming from us humans. Explain the average temperature on earth is 293 K.
question a solution is prepared by adding 1.75 mg of an unknown protein to enough water to make a 13.5 ml solution. the
Write a procedure that would follow to demonstrate the effect of increasingly higher concentrations of hydrochloric acid on its rate of reaction with antacid tablets. Can only use materials listed:
how much heat in is required to warm 10.0 of ice initially at -11.0 to steam at 111.0? the heat capacity of ice is
Assume ^35^Cl_2_ is a harmonic oscillator( it is slightly anharmonic). If K=329 N/m compute the zero-point energy for this molecule. ^35^Cl= 34.9688g/mol.
A high jumper of mass 80.0 kg consumes a meal of 2.00 103 kcal prior to a jump. If 3.3% of the energy from the food could be converted to gravitational potential energy in a single jump, how high could the athlete jump
Explain, in detail, how you would go about making the solution in letter (a) above. Include all detail and terminology as discussed in the Lesson materials.
If the half-life of an element is 5 days and 100 milligrams of that element is initially available, how many milligrams of the element are present after 25 days
A glass bulb of volume 0.136 L contains 0.7031 g of a gas at 759 Torr and 99.5 degrees C. What is the molar mass of the gas
Oxygen gas, generated by the reaction 2KClO3(s) ? 2KCl(s) + 3O2(g), is collected over water at 27°C in a 3.78-L vessel at a total pressure of 730. torr. (The vapor pressure of H2O at 27°C is 26.0 torr.) How many moles of KClO3 were consumed in the..
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