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How is the effect of a catalyst observed and described qualitatively in "Enzymatic Catalysis experiment"
How many liters of H2 at 23.0C and 733mm Hg are released when 1.98g of Na reacts with unlimited water?
a gas mixture with a total pressure of 745 mmHg contains each of the following gases at the indicated partial pressures: CO2, 265 mmHg; Ar, 121 mmHg; and )2, 168 mmHg. The mixture also contains helium gas. what is the partial pressure of the heliu..
a sample of neon gas collected at STP occupies a volume of 18.8 L . How many moles of gas does the sample contain?
how many grams of calcium carbonate , CaCO3, do you need in an antacid tablet to neutralize 20 ml of stomach acid ?
The elemental selenium dispersed in a dandruff control shampoo was determined by suspending a 10.0 mL sample in a warm ammonical solution that contained an excess of silver nitrate to give the following
a certain first-order reaction a--gtproduct has a rate constant of 3.90times10-3 s-1 at 45c . how many minutes does it
many home barbeques are fueled with propane gas rmc3 rmh8 .what mass of carbon dioxide in rm kg is produced upon the
The molar mass of unknown gas was measured by effusion experiment. it was found that it took 57s for the gas to effuse, whereas nitrogen gas required 48s. what is the molar mass of the gas
A white solid, soluble in water and alcohol but not in toluene, does not melt when heated to 250°C. However, upon prolonged heating of the solid a colorless gas evolves and the amount of solid "shrinks". The solid appears in the list of pure subst..
At what angle would the second order light of the same wavelength be reflected on the same side of the normal to the grating as the incident of light
What is the molar solubility of AgCl in 0.30 M NH3. Ksp for AgCl is 1.8 x 10^-10 and Kf for Ag(NH3)2+ is 1.7 x 10^7.
Give the shape of each molecule in problem and describe whether each molecule is polar or non polar and tell whether each is soluble or insoluble in water
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