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What is the difference between levels of measurement? Interval and Ratio? What are some examples of each? Its difficult to distinguish between them. Thank you for your help.
A balloon has a volume of 1.20 liters at 24.0 C. The balloon is heated to 48.0 C. Compute the new volume of the balloon.
Calculate the molality, molarity, and mole fraction of FeCl3 in a 23.6 mass % aqueous solution (d = 1.222 g/mL).
question how many grams of sodium lactate ch3chohcoona should be added to 1.00 l of .160 m lactic acid ch3chohcooh to
For the diprotic weak acid H2A, Ka1 = 3.2 × 10-5 and Ka2 = 7.9 × 10-7. What is the pH of a 0.0400 M solution of H2A? What are the equilibrium concentrations of H2A and A2- in this solution
1. caculate the volume of the acid soultion needed to completly neutralize the base in the flask 2. Caculate the pH for (a) the inital base solution in the flask; (b) the point at which 20mL of the acid has been added; (c) the equivalence point, a..
raising the total pressure from P0 (the initial air pressure) to P1 (the total final pressure of H2(g) + air).Compose an algebraic expression for the volume (V2) that this sample of H2(g) would occupy if it were isolated
use a solid line to represent the correct calibration line and a dotted line for the line with the systematic error.) Also discuss the advantages and disadvantages of spectral methods of analysis.
Calculate the total ionic concentration of a weak acid and a weak base (knowing their conductivities) by setting up a proportion with the total ionic concentration and conductivity of a strong acid and a strong base. Basically, we ran out of time and..
In an experiment carried out at 45oC, the initial concentrations were [H2]=[Cl2]=[HCl]=0.750mol/L. What is the equilibrium concentration of HCl?
Define what is the limiting reactant. Define what mass of the other reactant is in excess
A solution contains 6 % of NaCL. How many milliosmoles are represented in 478 mL of the solution? (NaCl m.w. 58.5).
If a solution has a pH of 2.36 and you do a 20-fold dilution of it with ultrapure reagent-grade water, what will its pH be after you dilute it
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