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MgNH4PO4 6H2O loses H20 stepwise as it is heated. Between 40c and 60c the monohydrate is formed and above 100c the anhydrous material is formed. What are the phosphorus percentages of the monohydrate and of the anhydrous material?
calculate the initial reaction rate when [O3] & [NO] remain essentially constant at the values [O3]0= 7.48 x 10-6 M & [NO]0= 3.26 x 10-5M, owing to continuous production from separate sources.
Heat of Combustion Calculation, Calculate the heat of combustion of cyclohexatriene using the bond energies for C=C,C-C, and CH provided below
a solution consisting of isobutyl bromide and isobutyl chloride is found to have a refractive index of 1.3931 at 20 degrees celsius. The refractive indices at 20 degrees celsius of isobutyl bromide and isobutyl chloride
Iron has a density of 7.87 g/cm3. What mass of iron would be required to cover a football playing surface of 120 yds × 60 yds to a depth of 10 mm? (1 inch = 2.54 cm; 1 lb = 453.6 g)
Given the following two solutions: 0.200 M HC2H3O2(aq) with pKa = 4.76 ; 0.200M NaOH(aq) A mixture is made using 50.0 mL of the HC2H3O2 and 25.0 mL of the NaOH. What is its pH?
A sample of calcium nitrate, Ca(NO3)2, with a formula weight of 164 g/mol, has 5.00 x 1025 atoms of oxygen. How many kilograms of Ca(NO3)2 are present
A sealed glass jar has a small amount of water on the bottom. The rest of the volume in the jar is taken up by helium gas at a partial pressure of 526 Hg, and water vapor. If the total pressure inside the jar is 760. mmHg, what is the temperature ..
If you added 75ml of a 0.555M solution of NaCl to enough water to produce 950 ml of solution, what would be the resulting molarity?
A beaker with 145mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M
What volume in L is occupied by 19.62 g of methane, CH4 (MM = 16.04 g/mol) at 23 °C and 1.34 atm?
Explain why acetone in the cyclohexane would invalidate the experiment?
In a reaction 82.00 g of sodium reacts with 74.00g of ferric oxide to form sodium oxide and iron metal. calculate the mass of solid iron produced
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