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Problem- A rectangle of length 5.42 in., height 3.47 cm, and depth 309 mm has a mass of 147.2 ounces. What is the density of the material in grams per centimeters?
Please show all work. Thank you in advance
Explain how many grams of copper will be plated out by a current of 2.3 A applied for 25 minutes to a 0.50 M solution of copper(II) sulfate
Acetic Acid is a weak acid with a Ka value of 1.8x10^-5. What concentrationof acetic acid is needed to produce a [H+] of 3.5x10^-4?
Write the complete stepwise mechanism for the reaction of cyclopentanone with bromine in acetic acid to give 2-bromocyclopentanone
What is the difference between selectivity and sensitivity as these words pertain to sensors? Why or why not would you want a very sensitive sensor?
The density of lead is 11.3 . The water level in a graduated cylinder initially at 205 rises to 290 after a piece of lead is submerged. What is the mass in grams of the lead?
At a particular temperature, N2O5 decomposes according to a first-order rate law with a half-life of 13.0s. If the initial concentration of N2O5 is 1.0 M what will be the concentration after 10s.
For each molecule below, specify the polarity of the bonds and the overall polarity of the molecule. Cl2Be, H20, O3
Caulculate the change in pH when 0.95 g of CH3COONa is added to 48 mL of 0.50 M acetic acid, CH3COOH. Ignore any changes in volume. The Ka for CH3COOH is 1.8 * 10^-5
what tempreture must 0.040 moles of water vapor be heated in a 500ml flask before the pressure in the flask becomes 2 atm.
Draw the reaction product(s) formed by the bromination of (z)-stilbene, designate all product sterocenters accurately and label all sterocenters in the final product(s)
Use the following data to estimate the normal boiling point and the molar enthalpy of vaporization of lead
for a hydrogen atom calculate the energy of a photon in the balmer series that results from the transition n 3 to n
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