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A stock solution of perchloric acid is 70.5% by mass HClO4 and 29.5% by mass water. The density of the solution is 1.67 g·mL-1 at 20 C. Calculate the molarity of the solution.
What is the molarity of a solution made with 2.4g if LiOH (molar mass = 23.9g/mol) dissolved to make 1.5L of solution? I want to know how to set up the formula for this problem
Molecules are mobile in a gas and some reactions can be run in the gas phase. Give several reasons solutions are preferable for synthetic reactions.
If 5.23 moles of an ideal gas has a pressure of 4.03 atm, and a volume of 72.61L
Buffering Action of Proteins, We did this experiment in class but I want to see if the results seem reasonable and, if so, why they were not more varied.
A hydrogen atom with an electron in its ground state interacts with a photon of light with a wavelength of 1.22 × 10^?6m. Could the electron make a transition from the ground state to a higher energy level? If it does make a transition,
In a purity check for industrial diamonds, a 11.25 carat (1 carat = 0.2000 g) diamond is heated to 74.21°C and immersed in 27.30 g of water in a constant-pressure calorimeter
What will the percentage of mercury (I) ions remaining in solution be?
How did the Dulong-Petit law fail to reproduce heat capacities of monatomic metals at low temperatures and how did Einstein explain and rectify this failure
Calcium hydroxide reacts with carbon dioxide to form calcium carbonate. The reaction for this process is: Ca(OH)2(s) + CO2(g) ? CaCO3(s) + H2O(g), ?H = -69.1 kJ What is the enthalpy change if 380 g of calcium carbonate is formed
When 76.0 grams of calcium and 36.9 grams of nitrogen gas undergo a reaction that has a 90.0% yield what mass of calcium nitride is formed?
A lab student analyzed a nickel-en complex for ethylenediamine, en, content. A 0.353g sample of the synthesized Ni-en complex was dissolved in about 50 mL of water and titrated with 0.165 M HCl (aq). Endpoint required 36.40 mL of the HCl (aq)
Suppose you have a mixture of 2 substances. You know one of the substances is either 2-chlorobenzoic acid or diphenyl acetic acid. The second substance is either p-dibromobenzene or acenaphthylene.
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