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0.526 g sample of a compound containing only C and H was burned, and 1.78 g of CO2 and 0.364 g H2O were obtained. What is the empirical formula of the compound?
The final temperature of the mixture is 27.0 degrees celsius. What is the heat capacity of the unknown substance?
question calculate the concentration of the hydronium ion in a 3.433 10-2 m solution of potassium perchlorate acid to
A cylindrical steel pipe is used to transport hydrogen gas in a certain process. The density of the hydrogen in the pipe is 5kg/m3 and the density in the environment is effectively zero
This assembly is inserted into a boiling flask. How many theoretical plates does the column assembly provide is the HETP of the saddles is 5 cm, the HETP of the Vigreux column is 8 cm, and the HETP of the empty glass tube is 15 cm
What volume (in mL) of water must be added to a 1.87 M solution of iron(III) chloride to make a 55.9 mL of a 0.71 M solution? Assume the volumes are additive.
A solution is 40% acetic acid by mass. The density of this solution is 1.049 g/mL. Calcu late the mass of pure acetic acid in 480 mL of this solution at 20 C
The neutralization of 25.0ml of 0.24M HCl requires 5.0ml of NaOH. What is the molarity of the NaOH solution
Calculate the mass of solid sodium acetate required to mix with 100.0 mL of 0.1 M acetic acid to prepare a pH 4 buffer. Record the mass in your data table
A tablet of Vitamin C changed color at 23.7 mLs of Iodine. how do you determine how much vitamin c is in the tablet.
Provide the name(s) for the tertiary alcohols with the chemical formula C6H14O that have a 4-carbon chain. There are three alcohols that should be named for this.
cu2 ag d ch4 o2 co2 h2o e both a and b 23. draw a lewis structure for h3c--no2. both oxygen atoms are directly
If 55.0 mL of ethanol {rm{(density}} = 0.789;{rm{g}}/{{rm{mL}}})) initially at 9.0^circ C is mixed with 55.0 mL of water {rm{(density}} = 1.0;{rm{g}}/{{rm{mL}}}) initially at 28.1^circ C in an insulated beaker, and assuming that no heat is lost, w..
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