Problem related to determining quantity of softened water
How many liters of softened water, containing a sodium concentration of 5.8×10^-2% sodium by mass, have to be consumed to exceed the FDA recommendation (less than 2.4 g sodium per day)? (Assume a water density of 1.0 g/mL.)
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What is the pH of a solution prepared by mixing 50.00 mL of 0.10 M methylamine, CH3NH2, with 20.00 mL of 0.10 M methylammonium chloride, CH3NH3Cl?
Consider two identical rooms: one room has a refrigerator in it, the other does not. All the doors and windows in each room are closed and both rooms are well insulated.
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Determine the cell potential for the galvanic cell described below. Pt(s) | BrO4- (10.6 mM), BrO4- (4.9 mM), pH 6.17 ¦ NO3- (12.6 mM), pH 3.2 | NO3(g) (102 mbar) | Pt(s)
What kind of metals are often recommended for use at low temperatures, particularly when any sudden loading of the part is expected?
A gas cylinder containing 6.38 mol of neon has pressure of 491mmHg at 295k. If 3.22mol helieum is added at constant temp and pressure, what will be the pressure in the cylinder.
when 92.0 grams of nonionic compound were dissolved in 985 grams of water, the freezing point of the solution was found to be -4.05 degrees celsius. what is the molar mass of this nonionic compound?
A melting point determination of Vanillin, melting point 80 C, was made with a heating apparatus setting at the maximum heating output. What is wrong with this setting and what will be the effect on the melting point?
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