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What mass of zinc in grams is required to produce 3.2L of H2 (g) from the following reaction at 78 degrees celcius and 790mmHg? Please explain
Zn + 2 HCl --->ZnCl2 + H2
The mass of ZInc is
At 0.967 atm, the height of mercury in a barometer is 0.735 m. If the mercury were replaced with water, what height of water (in meters) would be supported at this pressure.
what is the global pH change incurred after injection of the HCl? What would the pH change be if this same amount of 1.000 M HCl were put into a gallon of pure water?
A soft drink contains 35 mg. of sodium in 315g. of H2O. What is the concentration of sodium in the soft drink in mass percent?
When 36.4 g of calcium and 11.1 g of water are reacted according to the following equation: Ca(s) + 2H2O(l) → Ca(OH)2(s) + H2(g) How many liters of hydrogen gas at a pressure of 727 mm Hg and a temperture of 47.8 °C are produced?
Determine the empirical formula of a hydrocarbon which has 92.24% C and 7.76% H. If 0.500 g of this hydrocarbon occupies 0.086 L at STP, determine the molecular weight of the compound.
the Fischer esterification experiment why was the majority of the ethanol boiled off prior to extraction and why was the reaction vial cooled
How much energy (kJ) is required to convert a 25.0 g ice cube at -15.0oC to water vapor at 250oC?
A buffer (pH 3.70) was prepared by mixing 1.00 mole of formic acid and 1.00 mole of sodium formate to form an aqueous solution with a total volume of 1.00 L. To 400 mL of this solution was added 50.0 mL of 1.00 M NaOH. What is the pH of this solut..
container and found that no change had occurred after one week. Offer possible explanations for the lack of reaction. Assume that A, B, and C are totally miscible liquids.
How many grams of copper may be formed by the passage of 22,988 C through an electrolytic cell that contains an aqueous cuprous
Working with partition function and entropy what is the ratio of the number of particles in the J= 14 to the J=4 level at a temperature of 1900 K?
Draw a flow diagram simply showing how to separate a neutral organic compound from an organic acid and purify both.
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