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Solid Calcium hydroxide is dissolved in 500 mL of water until the pH of the solution is 10.75. Calculate the grams of calcium hydroxide dissolved assuming calcium hydroxide is a strong base.
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How many moles of magnesium ion are present in 5.25g Mg 3 (PO 4 ) 2 ?
How do the colors seen by the naked eye compare to the emission spectra emitted by the flame
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.
1. Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the unwieldy formula of KHC 8 H 4 O 4 . This is often written in shorthand notation as KHP. If ...
Calculate the number of moles of barium chloride in 427g of a 3.17% by mass barium chloride solution?
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A 35g copper cup contains 89g of drinking water. The copper cup is placed into a cooling device consisting of an insulated container which holds 85g of water equal in temperature to the drinking water. Ammonium chloride ...
Calculate volume in milliliters of a 1.96 mol/L calcium bromide solution that contains 275. mmol of calcium bromide CaBr2. Round your answer to 3 significant digits.
Use the simulator for the hydrogen atom (https://phet.colorado.edu/en/simulation/hydrogen-atom) to estimate the energy needed to transfer one mole of electrons from the energy level n = 1 to the level n = 3.
A mixture consisting of powdered granite and sugar. Water is added and the mixture is stirred then filtered. What is presented on the filter paper? What is present in the filtrate(the liquid obtained in the filtration)? ...
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