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Question- Cupric Sulfate is commonly sold as pentahydrate, which means that there are five moles of H2O for each mole of CuSO4. How many grams of cupric sulfate should be dissolved in a 250 mL volmetric flask to make a solution that is 508.0 ppm in Cu+2?
Articulate your knowledge to crack the above question
A 5.61g sample of NaCl is added to 112mL of pure water (density of pure water @ 25 degree celcius is 0.9982g/mL). What is the mass % of the NaCl solution
Find the de Broglie wavelength (in nm) associated with an electron that is moving with a velocity of 1900 km/s. The electron rest mass is 9.11 x 10-31kg.
The earth has a radius of about 6.35 *10^6 m and a mass of 5.98 *10^24 kg. What would be the radius if the earth had the same mass density as matter in a nucleus
The ionization energy of Xe5p and O2p electrons are 12.1 eV and 13.6 eV, respectively. Calculate the energies and composition of the bonding and antibonding orbitals of XeO. Use β = -1.2 eV and S = 0.
Calculate the pH of the solution, taking into account the activity coefficients for H+ (yH+ = 0.933) and IO3- (yIO3- = 0.928). Assume yHIO3 = 1. (Hint: quadratic)
A 1.304 gram sample containing an unknown amount of arsenic trichloride and the rest inerts was dissolved into a NaHCO3 and HCl aqueous solution. To this solution was added 1.500 grams of KI and 50.00 mL of a 0.00919 M KIO3 solution.
Calculate the change in pH of rainwater resulting from an increase in the Pressure of CO2 from 10^-3.5 atm to 10^-3.0 atm due to fossil fuel emissions
How many mL of 12.1 M HCl solution do you need to dilute to make 100 mL of a soltion with 10 wt%
Both pieces are placed inside a calorimeter whose heat capacity is negligible. What is the final temperature inside the calorimeter
at room temperature 20 milk turns sour in about 63 hours. in a refrigerator at 3 milk can be stored three times as long
Problem- Predict the products and mechanisms of the following reactions. When more than one product or mechanism is possible, explain which are most likely.
Suppose you have a sample which should melt at 100-101 degree C. You place 0.015 grams in a capillary tube in an oil bath at 101 degree C. If the heat of fussion for the sample is 50 cal/gram
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