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Suppose you have a cylindrical glass tube with a thin capillary opening, and you wish to determine the diameterof the capillary. You can do this experimentally by weighing a piece of the tubing before and after filling aportion of the capillary with mercury. Using the following information, calculate the diameter of the capillary.Mass of tube before adding mercury = 3.263 g
Mass of tube after adding mercury = 3.416 g
Length of capillary filled with mercury = 16.75 mm
Density of mercury = 13.546 g/cm3
Volume of cylindrical capillary filled with mercury =(p)(radius)2(length)
What is the source of the energy needed to incorporate glucose residues into glycogen. How is it used
Starting with 2.5 grams of vitamin D3 and 10mg of palladium catalyst, how many millimoles of H2 will be necessary to hydrogenate all of the Carbon Carbon double bonds in D3?
A voltaic cell employs the following redox reaction: 2Fe3+(aq)+3Mg(s)--> 2Fe(s)+3Mg2+(aq+ Calculate the cell potential at 25 under each of the following conditions.
A coffee cup calorimeter contains 25.42g of water, at 21.0g deg C. Then 69.18g of water, with an initial temperature of 70.1 deg C, was added to the calorimeter. The final temperature of the water in the calorimeter was 23.8 deg C
When a 3.00-g sample of KCl is dissolved in water in a calorimeter that has a total heat capacity of 2.472 kJ·K-1, the temperature decreases by 0.280 K. Calculate the molar heat of solution of KCl in kJ/mol
Milk spoils about 5x as fast at 300 K as it does at 250 K. What is the apparent activation barrier for the "milk spoiling" reaction
Why does BeCO3(s) rapidly decompose to BeO(s) and CO2(g) at low temperature, but CaCO3(s) must be heated to undergo decompostion to CaO(s) and CO2(g)
copperii chloride and leadii nitrate react in aqueous solutions by double replacement. write the balanced chemical
Calculate the formula and the ions produce by using the condensed electron configuration and Lewis dot structure to depict the monatomic ions form from the following atoms
How many grams of Cu and what volume of O2 gas will be obtained if 18.4 ampere electric current is passed through the electrolytic cell of CuSO4for 1 hour and 42 minutes between graphite electrodes at 208 K temperature and 1 bar pressure? (Cu=63.5..
how many minutes does it take light from the sun to reach the earth? the distance from the sun to earth is 93 million
A researcher found that 11.56 grams of lead sulfide, PbS, were formed when 10.0 grams of lead reacted with 1.56 grams of sulfur, when 10.0 grams of lead reacted with 3.00 grams of sulfur, and when 18.0 grams of lead reacted with 1.56 grams of sulf..
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