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You have a certified "5 ppm Fe standard" that you obtained from NIST. By your method you measured it to be 4.8 ppm.
a) Discuss your measurement precision
b) Discuss your measurement bias
a tank contains 150.0 g of co2 and 24.0 g o2 at a total pressure of 4.25 atm and a tempature of 25.0*C. Calculate the partial pressure of O2.
how many grams of NACL would you need to add to 1 liter water sample ph=7 so that ionic strength equaled to 0.1M
determine the empirical and molecular formulas of a hydrocarbon which has a molecular weight of 84 mass unit which contains 85.7% carbon.
Water flowing through pipes of carbon steel must be kept at PH 5 or greater than limit corrosion if an 8.0 *10^3 Ib/hr water stream contains 10 ppm sulfuric acid and 0.015% acetic acid, how many pounds per hour of sodium acetate trihydrate must be..
The first mechanism includes sodium acetate to yield beta-penta-acetate and the first mechanism includes zinc chloride (Lewis acid) to form an oxonium ion to yield the alpha-penta-acetate product. Any help to draw out the mechs would be much appre..
A student heated a 4.901 g sample of hydrated iron chloride. After heating, the anhydrous iron chloride has a mass of 3.010 g. Calculate the percentage by mass of water in the hydrated compound.
Use a table of standard thermodynamic values to predict the standard cell potential at 81 C: Cu(s)|CuSO4||AgNO3|Ag(s) Assume that the values of delta H and delta S are independent of temperature.
The specific heat of the mixture is 4.21 J/(g.c), What is the enthalpy change for the neutralization reaction of 2.80 mol of CsOH in KJ?
Phosphorus-32 has a half-life of 14.0 days . Starting with 2.00 g of P^32, how many grams will remain after 70.0 days?
Salicylic Acid is used to make asprin. Salicylic acid contains 60.8 mass % Carbon, 4.4 mass % Hydrogen and 34.8 madd % of Oxygen. What is the empirical formula for Salicylic acid?
A mixture formed by adding 40.0 mL of 2.5×10-2 M HCl to 120 mL of 1.0×10-2 M HI. What is the pH of the strong acid solution?
What functional group is present in glucose? Is glucose a reducing or nonreducing carbohydrate?
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