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In its brochure to customers that is required by the Safe Drinking Water Act, a water utility lists the concentration of Mg2+ as 1.8 mg/L. What are the molarity and normality of the magnesium ion in their water?
The weak acid AH4 has how many buffering regions. Can anyone explain how to approach this type of problems
which one of the following best describes the c3-c4 bond in 1-butene? a sp3-sp3 and sigma b sp2-sp2 and sigma c sp2-sp3
The [OH-] of a solution can be determined from the pOH using the equation: [OH-] = 10 ^ -pOH where [OH-] = hydroxide ion concentration. If [OH-] = 6.0*10^-3 M then pOH=?
a freezer is used to freeze 3.0 l of water completely into ice. the water and the freezer remain at a constant
We electrolyze a solution containing M2O7(3-) for 43.30 hr using a current of 2.685 amp to isolate M(s), which has an atomic weight of 215.22. How many grams of M(s) will be produced if we operate the system at 100% efficiency
C6H5OH(s) + 7O2(g) --> 6CO2(g) + 3H2O(g) A 2.000 gram sample of pure phenol, C6H5OH(s), is completely burned according to the equation above.
For your unknown titration, indicate whether the pH at the equivalence point should be equal to 7.0, greater than 7.0, or less than 7.0. Explain your choice, including the appropriate balanced net ionic equation.
A sample of 0.7500 g of a monoprotic weak acid, HA, is mixed in enough distilled water to produce 50.0 mL of a solution with a pH of 2.716. The solution is titrated with 0.1500 M NaOH, and in the middle of the titration, when [HA] = [A-]
Calculate the number of grams of glucose must be dissolved in water in order to produce 100.0 ml of a 3.700 M glucose solution (C6H12O6). Density = 2.601
Write a balanced chemical equation for the following reaction in an acidic solution. Cr2O72-(aq)+Br-(aq)>>Cr3+(aq)+Br2(aq)
now consider a sample that consists of four spheres each with a different mass blue mass is 4.00 g red mass is 3.75 g
Find the molcular heat capacity in units. Does the law hold up? Can you distinguish a metallic element from a nonmetal this way. Metalloids
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