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Carbonated beverages like coke , pepsi and 7-ip contains acids, usually phosphoric and or citric acid. Propoese a procedure to remove the dissolved carbon dioxide from these beverages and determine thier total acid content.
A sample of the unknown complex is analyzed and has an absorbance of 0.528. What is the molar concentration of Cu^2+ ions in the unknown solution?
sample of tap water consists of water, fluoride ions, calcium ions, and several other dissolved ions. The ions are evenly distributed throughout the water. Which term or terms could be used to describe this sample of tap water
We did a lab in Chem where we put a liquid into a flask, secured foil on the top and poked a hole in the foil so the vapor could push out the air
At 1.00 atm and 23 degrees C, how many liters of carbon dioxide are formed by the combustion of 3.60 g of butane
you are given a small bar of an unknown metal x. you find the density of the metal is 10.5 gcm3. another experiment
Calculate the energy of a mole of photon with wavelength of (a) 200nm (ultraviolet), (b) 150pm(X ray), and (c)1.00cm (microwave).
A 16.1 kg piece of zinc at 68 degrees Celsius is placed in a container of water. The water has a mass of 20 kg and has a temperature of 13.6 degrees Celsius before the zinc is added. What is the final temperature of the water and zinc
What mass of CO2 will be produced when 100.0 g of C8H18 react completely in the equation? 2C8H18 + 25O2 = 16CO2 + 18H2O
If 8.0 moles of the gas A is palced in a 60.0 L tank with 1.0 moles of B at 0 degress celsius and 1 atm, they react according to this equation: 2A(g) + B(g) --> 3C(g) +D(g) How many moles are present in the tank when the reaction is complete
Based on the molecular formula, determine whether each of the following is an alkane, alkene, or alkyne. (Assume that the hydrocarbons are noncyclical and there is no more than one multiple bond.)
A 250 g yo-yo is swung on the end of a50 cm string at a constant speed of 4 m/s. What is the centripetal force acting on the yo-yo?
Solid soduim reacts violently with water producing heat hydrogen and sodium hydroxide. How many moeclues of hydrogen gas are formed when 48.7 g of sodium are added to water.
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