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An object is coated with a layer of chromium that is 0.015 cm thick. If the object has a surface area of 15.3 cm squared, how many atoms of chromium are used in the coating. The density of chromium is 7.19 g/cm cubed.
A center of chirality (from the Greek cheir, hand) imparts the property of handedness to a molecule. In this part of the experiment, the left- or right- handedness of molecules with a chiral center will be illustrated with models.
the mass propotion of Mg:N=18:7. if 3.60 g reacts with 4.20 g N2 gas so the mass of product Mg3N2 is?
Find the mass of the sugar (C6H12O6) required to produce 1.82 L of carbon dioxide gas at STP from the reaction?
How many milliliters of boiling water are required to dissolve 24 g of N-Bromosuccinimide? If the solution were cooled to 25° C, how many grams of N-Bromosuccinimide would crystallize out.
Strawberries contain about 15 wt% solids and 85 wt% water.To make strawberry jam, crushed strawberries and sugar are mixed in a 45:55 mass ratio, and the mixture is heated to evaporate water until the residue contains one-third water by mass.
What is the cruising range (in miles) of the automobile on a full tank, assuming all the energy is transferred to the wheels? If the actual cruising range is 732 km, what is the efficiency of the engine?
3.8 g of a hydrocarbon fuel is burned in a calorimeter that contains 234 grams of water initially at 25.00 ? C. After the combustion, the temperature is 26.55 ? C
A sample of a gas at 0.91 atm occupies a volume of 374 mL. If the temperature remains constant, what will be the new pressure if the volume increases to 265 mL?
What mass of C2H5OH should be added to 535 kg of the paraffin in formulating the mixture if the vapor pressure of ethanol at 35°C over the mixture is to be 8 torr? The vapor pressure of pure ethanol at 35°C is 100 torr.
added 5 mL of 0.10 M H2SO4 instead of 5mL 0.10 M of HCl calculate the ph of the solution using henderson-hasselbalch
alcohol dehydrogenase. Assume all of the ethanol gets converted to acetaldehyde.a) What will the final concentration of NADH be in the solution?
What is the pressure of the gas in this mercury manometer if h = 73 mm and atmospheric pressure
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