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Zinc metal reacts with hydrochloric acid to produce zinc (II) chloride and hydrogen gas. How many liters of hydrogen gas will be produced at STP when 10.00 g of zinc metal is added to a 30.0 mL of a 0.500 M hydrochloric acid solution?
As a solid, Fe adopts a body-centered cubic unit cell. How many unit cells are present per cubic centimeter of Fe. What is the volume of a unit cell of this metal
you have two flasks of equal volume. Flask A contains H2 at 0 degree celsius and 1 atm pressure. Flask B contains CO2 gas at 25 degree celsuis and 2 atm pressure. Compare these two gases with respect to each of the following:
a semiconductor laser in a cd player has an output wavelength of 780 nm and a power level of 0.10 mw. how many photons
calculate the ph of a solution that is prepared by mixing 2.16 grams of propanoic acid, CH3CH2COOH, and 0.56 grams of NaOH in enough water
If you have 260.0 mL of water at 25. C and add 110.0 mL of water at 95.0 C, what is the final temperature of the mixture. Use 1.00 g/mL as the density of water.
rust on an automobile door contains fe2o3s. the balanced equation representing one of the reactions between iron in the
the element boron has two naturally occurring isotopes with masses of 10.0129 amu and 11.0093 amu. what is the percent
During an experiment, a student adds .339 g of calcium metal to 100.0 mL of 2.05 M HCl. The student observes a temperature increase of 11.0 °C for the solution. Assuming the solution\'s final volume is 100.0 mL,
Calculate the number of moles of HCl that would be consumed by 1.0 g of NaHCO3
If two reactions sum to an overall reaction, and the equilibrium constants for the two reactions are and , what is the equilibrium constant for the overall reaction
The first ionization energy of Ne is 2081 kJ/mol. The sodium ion Na+ is isoelectronic with Ne, but the ionization energy for Na+ is 4560 kJ/mol. Why is it harder to remove an electron from Na+ than from Ne if they are isoelectronic
An aqueous solution of sodium hydroxide is labeled .010 M NaOH. What are the molar concentrations of NaOH, Na+ and OH- in the aqueous solution?
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