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Draw a "formula" for each of the following molecules using circular symbols of your choice to represent atoms.
a) A diatomic molecule of an element.
b) A diatomic molecule of a compound.
c) A triatomic molecule of an element
d) A molecule of a compound containing one atom of one element and four atoms of another element.
question when trimethylamine ch33n dissolves in water it partially ionizes producing the trimethylammonium ion ch33nh.
A blank carried through the same procedure gave an absorbance of 0.045. If molar absorptivity of the Cu-containing colored compound is 7900, what is the amount of Cu in the rock sample (in mg)
Problem- An electron in a hydrogen atom makes a transition from the n = 2 to the n = 5 state. What wavelength of radiation does the electron absorb in making this transition?
What concentration of bezoyl peroxide (kd=1.45 x 10^6 L/mol at 60 C) would be needed to polymerize a 1M solution of styrene to a molecular weight of 125,000?
If you were transferring 0.2 mL of stock solution to another vial in order to begin performing a 1:5 serial dilution, what volume of DI water must be added to complete the dilution?
sodium phosphate is mixed with 400.0ml of 0.255M barium chloride. What is the mass of the solid produced?
How many grams of MgO are produced when 40.0 g of O2 react completely with Mg?
A gaseous fuel mixture stored at 752 mmHg and 298 K contains only methane and propane . When 11.6L of this fuel mixture is burned, it produces 767kJ of heat methane : 890 kJ/mol propane : 2,220 kJ/mol
Calculate the acidity (H+ concentration) of a carbonated beverage which is 0.15 M carbonic acid, H2CO3. Use only the first ioization constant for H2CO3 to HCO3 , which is 4.4X10^-7
Find the general antiderivative of the function below. Use C for your constant of integration. Evaluate the definite integral exactly using the Fundamental Theorem.
what volume of 0.200 m hno3 is needed to titrate 38.7 ml of 0.175 m naoh? 2 if 42.5l of 0.45 m hcl is titrated with
calculate the mass of nitrogen dissolved at room temperature in an 77.0 home aquarium. assume a total pressure of 1.0
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