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Given the following balanced chemical equation Ca(OH)2+2HCl-->CaCl2 +2H2, if 56.7g of calcium hydroxide react completely, how many g or HCl also reacted
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One liter of nitrogen (N 2 ) and one liter of carbondioxide (CO 2 ), initially at one atmosphere pressure, are forcedinto a single evacuated 500 mL vessel. What is the total pressure, in atmospheres,if the temperature re ...
As your book describes, the United States did not recognize foreign copyrights until the late 1800s. As a result, U.S. publishers routinely published foreign works without permission or compensation for the non U.S. auth ...
Why do the instructions call for using a saturated solution of NaOH rather than one at lower concentration? Why can we ignored in the calculation of the concentration of NaOH?
A scuba diver creates a spherical bubble with a radius of 2.5 cm at a depth of 30.0 m where the total pressure (including atmospheric pressure) is 4.00 atm. What is the radius of the bubble when it reaches the surface of ...
A chemist adds 75.0 mL of a 1.92 M nickel(II) chloride (NiCl2) solution to a reaction flask. Calculate the millimoles of nickel(II) chloride the chemist has added to the flask. Round your answer to 3 significant digits.
The following sequence of reactions occurs in the commercial production of aqueous nitcric acid: 4NH3(g)+ 5O2(g) -> 4NO2 (g) + 6H2O(l) ΔH = -907 kJ 2NO(g) + O2(g) ? 2NO2(g) ΔH= -113 kJ 3NO2 + H2O(l) -> 2HNO3(aq) + NO(g) ...
A chemistry lab experiment requires 67.4 grams of silvernitrate. How many grams of a 15.5% by mass solution of silvernitrate should be used?
The Earth receives approximately 2 x 1014 kJ/s of solar energy. What mass of solar material is converted into energy each second to produce this much energy
An analysis of an oxide of nitrogen with a molecular weight of92.02 amu gave 69.57% oxygen and 30.43 % nitrogen. What is the empirical formula of the compound?
Calculate the number of moles of barium chloride in 427g of a 3.17% by mass barium chloride solution?
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