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While viewing a sample under a microscope you find something interesting within your field of view. How would you best indicate your region of interest to a friend when viewing your sample?
Calculate the molar concentration of OH - ions in an 1.37 M solution of hypobromite ion, BrO- (Kb = 4.0 10-6).
Explain what is the maximum amount of N2 (28.0134 g/mol) which could be formed from 12.35 g of N2H4 (32.0452 g/mol) as well as 6.8 g of O2 (31.9988 g/mol)
How many resonance forms are required to represent the bicarbonate ion HOCO21
When a sample of H2S gas produced according to the equation was collected over water at 11 oC the pressure of gas above the water was 0.978 atm and its volume was 2560 mL. Calculate the mass (g) of H2S produced. Be sure to consider the vapor press..
Calculate the molar concentration of HCl if 25 mL of the HCl solution quantitatively react with 19.58 mL of an 0.1062 M solution of NaOH. Write the balanced equation.
a compound with a partition coefficient kp of 0.5 betweensolvents a and b ab 0.5 is dissolved in 100 ml of a. which is
Aluminum reacts with chlorine gas according the following equation shown below. How many moles of Cl2 are required to react with 0.060 mol of Al
The difference in pH units between two acidic solutions is three. How much more acidic is the stronger acid than the weaker acid
Suppose 1500 J of heat energy are put into a sample of liquid water at 25 degrees celsius, and the final temperature of the water is 75 degrees celsius. How many grams of water are present?
A cube of unknown metal measures 1.8 in by 0.60in by 1.2 in and has a mass of 56.67. Explain what is the identity of the unknown metal
Mass spectral analysis of 1-chloropropane results in several fragmentation pathways. Complete the mechanism below and give the products for each indicated fragmentation pathway. Include all nonbonding electrons and charges.
Calculate the enthalpy change per mole of boron consumed in the reaction:4B(s) + 3O2(g)---->2B2O3(s)If more than one value is given, use the CODATA Review value.
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