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1. Write 86,400 s in exponential notation.
2. Write 0.15 ns using exponential notation with units of s.
3. 141000 g =? kg
4. Write 1.4 Mg using exponential notation with units of g.
5. Write 30 pm using exponential notation with units of m.
6. Write 12,800 km using units of Gm.
7. Determine how many ps thre are in 1 s.
Will Co(OH)2 precipitate from solution if the pH of a 0.020M solution of Co(NO3)2 is adjusted to a value of 8.00? Ksp for Co(OH)2 = 1.6 x 10-15
Calculate the volume of oxygen you would need at 1.00 atm and 298 K to completely oxidize 53g of glucose.
the solubility of a salt in water represents the amount of solute necessary to reach a state of equilibrium between saturated solution and undissolved
With two dice, each numbered 1-6, there are two possible ways to roll a 3: Thus, for the outcome of 3 (a particular macrostate) there are 2 microstates. How many possible ways are there to roll a 6? What is the entropy associated with an outcome o..
At equilibrium the concentrations are [H2]=5.0 M, [N2]= 8.0M, [NH3]=3.0M. What were the concentrations of nitrogen gas and hydrogen gas that were reacted initially.
Question- Blood plasma is the solution remaining after cells (red, white, etc...) are removed from whole blood. The clinical analysis of free calcium in plasma can be down with a calcium liquid membrance ion-selective electrode.
What would you expect to see in a reaction between salicylic acid and ferric chloride, and why
The first step in the citric acid cycle of food metabolism is reaction of oxaloacetate with acetyl CoA to give citrate. Propose a mechanism, using acid or base catalysis as needed.
Problem- Explain why phenolphthalein is a good indicator for the titration of HCl with NaOH but not for NaOH with HCl
Assume that a gold atom is shaped like a sphere. An atom of gold has a radius of 156 pm and a mass of 197 amu. Determine the density of a single gold atom in units of g/cm3. (1 amu = 1.66 x 10-24g).
A 224mL sample of an aqueous solution contains 2.80% MgCl2 by mass. Exactly one-half of the magnesium ions are Mg?28, a beta emitter with a half-life of 21 hours
Standard reduction potentials are given on the next page. (a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the pH in the Pt | H+ | H2 half-cell? (c) What is the value of the equilibrium constant fo..
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