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While synthesizing potassium alum, you begin with 0.550 g of scrap aluminum. After purifying your product, you collect 8.69 g. Calculate the percent yield of the alum.
What is the difference between gradient elution and isocratic elution in High performance liquid chromatography
Each 1.000 g of 238U that decays eventually produces 0.866 g of 206Pb. If the half-life of 238U is 4.468 x 10^9 years, what is the age of a mineral that has a 238U/206Pb mass ratio of 2.00?
Describe the type of bonding that your unknown has (covalent, polar covalent). Locate and show any dipoles in your compound
A carnot cycle engine is operated between a high temperature of 500K and at a low of 3000K. The work done is 800J. how much heat
Explain why the bond dissociation energy for the C-C sigma bond in propane is lower than the BDE for the C-C bond in propene.
Carbon sequestration technologies are being actively explored by researchers as methods to remove CO2 from the atmosphere, thereby diminishing the greenhouse effect.
A 10.0 mL sample of vinegar, an aqueous solution of acetic acid (HC2H3O2), is titrated with 0.5062 M NaOH, and 16.58 mL is required to reach the equivalence point. What is the concentration of the acetic acid?
a 325 ml sample of solution contains 25.3 g of CaCl2. calculate molar concentration of Cl- in this solution
The total molarity of acid and conjugate base = 0.100M. A boy adds 4.20 milliliters of a 0.370 M solution to the beaker. Determine how much will the pH change?
alcohol is often used to sterilize medical instruments or patch of skin
how many millileters of a 0.225 M HCL solution are needed to neutralize 259 mL of a 0.0309 M Ba(OH)2 solution.
If 20.8 ml of base is required to reach the equivalence point, what is the concentration of the acid?
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