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A chemist determines by measurements that 0.0700 moles of iodine solid particles into a chemical reaction. Calculate the mass of iodine solid that parcipates
Be sure your answer has the correct number of significant digits
what is reduced and what is oxidized in this chemical equation: Zn+2HCl yields ZnCl2+H2
A sample of diatomic gas has a density of 0.002061g/ml at 1.8 atm pressure and 25.0°C. identify the gas
A tank contains 40 lb. of air, 20 lb. of CO2 and 30 lb. of SO2. Compute the volume of the tank if the total pressure of the mixture is 44.08 psi at 86°F. What is the partial pressure of each constituent and the average molecular weight of the mixt..
Problem- Find the pH of the equivalence point and volume (mL) of 0.200 M HCL needed to reach the equivalence point in the titration of 65.5 mL of 0.234 M NH3.
After 54.0 min, 10.0% of a compound has decomposed. What is the half-life of this reaction assuming first-order kinetics
based on the law of multiple proportions how many grams of hydrogen would you expect 2.49 of nitrogen to combine with
The reaction between solid sodium and Iron (III) oxide is one in a series of reactions that inflates an automobile airbag.
What mass of chromium(III) oxide would be needed in order to obtain 850 grams of chromium metal
Assume that while extracting material from gallstones you have isolated a compound that you suspect is cholesterol, but you cannot be sure. How would you experimentally prove that the sample that you have isolated is actually cholesterol using mel..
the xy-plane and the C-atom skeleton lies on the x axis, what is the hybridization of C for the right-side CH2 group?
when 15.0g of steam drops in temperture from 275.0C to 250.0C how much heat is released csteam=2.01j/gC
a quantity of water is heated from 25.0 C to 36.4 C by absorbing 325 joules. what is the mass of the water?
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