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How many grams of zinc are required to react with HCl to produce 8.30L of H2 at STP? Zn(s)+ 2HCl(aq)--->ZnCl2(aq)+ H2(g)
a) 65.3
b) 10.0
c) 32.2
d) 24.0
e) 46.5
Are samples A and B distinguishable by elemental analysis, X-ray diffraction, absorption spectroscopy or emission spectroscopy. Give a one sentence explanation for each.
find the volume of aqueous acetic avid required to prepare an effective buffer solution when 8.2 grams of sodium acetate is used. Assume 500mL is required for the buffer solutions and also find the pH of the buffer.
Since warm water sits in a cool room you measure the temperature change. Think very carefully about this question before you jump to an answer. Remember that temperature and heat isn't the same thing.
1-methylcyclohexene and 3-metheylcyclohexene were mentioned as possible products were mentioned as possible products of the dehydration of 2-methylcyclohexanol. Why wasn't 2-methylcyclohexene mentioned as a possible product
What causes cycloalkanes to have two less hydrogen atoms than similar alkanes that are open chain ones?
Balance the following full redox reactions using the lowest integer coefficients, in basic conditions. NiO2(s) + Zn(s) ? Ni(OH)2(s) + ZnO22?(aq)
The single atom of an isotope does not have a: a)relative atomic mass b) atomic number c)mass number d)average atomic mass
for the reaction so2g no2g so3g nog the equilibrium constant is 18.0 at 1200 degrees c. if 0.050 m mole of so2 and
The enthalpy change for the reaction below at 25oC is -1,850 kJ (per mole of C9H20). What is the internal energy change for the reaction at 25oC
What mass of rm NaOH is needed to precipitate the rm Cd^{2+} ions from 35.0 mL of 0.540 M rm Cd(NO_3)_2 solution?
1. your expense account allows you to spend $80.00 a day when you are on a trip. If you have a week-long trip to tiny country of Kratvia, where the exchange rate is 3.50 kratvels per dollar, how many kratvels can you spend during the week? (7 ..
Benzene's vapor pressure is normally 0.930 atm. A soln of 20.0g unknown molecular solute and 78.11 g benzene has a vapor pressure of 0.900 atm. What's the unknown molar mass. Benzene molar mass= 78.11 g/mole
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