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What is the buffer system in buffered aspirin?explain
You are the Science Officer on the Starship Enterprise and you come across a new planet. You find that no light with wavelength less than about 650 nm reaches the surface of the planet.
The equation for the reaction o KHP and NaOH shows ratio 1:1 ratio for the two reactants. Experimentally ,how do you know that base solution that you delivered from the burette had just as many moles as were in the KHPsample that you weighed out i..
The density od acetic acid is 1049.2kg.m-3. the data gathered in the experiment is recorded below. Calculate the volume percent od acetic acid in vinegar.
what pressure would it exert? (b) What pressure would it exert if it behaved as a van der Waals gas?
if it takes 25.0 j to increase the temperature of n moles of ideal he at fixed volume from 15.0 c to 85.0 c the heat
A 0.464 g sample of a compound containing the elements carbon, hydrogen, oxygen, and sulphur was burned completely, yielding 0.969 g CO2 and 0.198 g H2O. In a separate experiment, all the sulphur in another 0.464 g sample was converted to 0.859 g ..
if 500g of potassium chlorate solid decomposes and produces 303g of potassium chloride solid how many grams of oxygen
Question- a ph meter reads 0.386 v when placed in a standard buffer of PH= 4.000. When placed in an unknown solution, the metter reads 0.498V. What is the PH of the unknown solution
Bond energy of O2 is 0.494 MJ/mole. What is the wavelength of light that has enough energy to break the O2 bond? What do you call the wavelength range of this photon
Determine the molecular formula for an 8-carbon hydrocarbon with 3 pi bonds and one ring.
When each of the following pairs of aqueous solutions is mixed, does a precipitation reaction occur. If so, write the formula and name of the precipitate. Type your answer using the format CO2 for CO2. Type NONE in the blanks if there is no precip..
determine the minimum length of a surface crack that will lead to fracture. Assume a value of 0.96 for Y.
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