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If a buffer is made up to be 1.0 M in acetic acid and 1.0 M in sodium acetate, predict how much acid (0.2 M) and base (0.2 M) will be required to change the pH of 100 mL of the buffer by 0.1 pH units.
liquid water at 0oc and atmospheric pressure has a density of 1 gcm3. at the same conditions ice has a density of .917
What are the differences between physical and chemical reactions in chemistry and what are the characteristics that make elements different from compounds? Give two examples of each that exist in the human body and explain their function.
About how many gallons of CO2 are produced by an incandescent 60-W lightbulb burning for an hour
1. If 6.05 x10^-2 kL of a 1.42 M solution of sodium phosphate is mixed with 9.68x10^3 mL of a 13,5 M solution of sodium sulfite, what is the molar concentration of sodium ion in the final solution? Give the answer in standard notation.
Although the term "melting point" is used to describe a solid/ liquid change, we generally list melting ranges rather than single melting point. For most pure substances,
The hydrolysis of ethyl acetate (CH3COOC2H5) by sodium hydroxide yields ethanol (C2H5OH) and sodium acetate (NaO2CCH3) by the reaction shown
Question- A carboxylic acid reacts with water to form a carboxylate ion and H30+. Complete the following reaction.
Iodide ion catalyzes the decomposition of hydrogen peroxide. the reaction is first-order in H2O2. what is the value of the rate constant,k, if the initial rate is 0.00842 mol/(L*s)?
How many moles of O2 are required for the complete combustion of 2.2 g of C3H8 to form CO2 and H2O?
How many molecules are in 22.41 L of an ideal gas at STP? Remember the answer is supposed to be in molecules
The density of magnesium oxide is 3.58 g /cm3. Given that the radius of the O2- ion is about 140 pm in most oxides, calculate the radius of Mg2+, in pm. Your solution should include a sketch one face of the unit cell of MgO to show how the edge le..
DCF Analysis or Comparable Analysis? If you do calculate both, how do you combine both results into one share price? Do you assign a random weight?
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