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In the manufacturing of computer chips cylinders of silicon are cut into thin wafers that are 3.00 inches in diameter and have a mass of 1.50 g of silicon. How thick mm is each wafer if silicon has a density of 2.33 g/cm^3. The volume of the cylinder is V=pir^2h.
If I have 7.0 moles of gas at a pressure of 0.10 atm and at a temperature of 50.1 degrees C in a balloon, what is the volume of the balloon? (Round to one decimal place.)
Litre of white gas, and density of the gas is 0.710 g/cm 3 . Calculate the mass of the fuel and express your answer in kgs?
How many liters of CO2 are produced when 15 liters of O2 are consumed
Consider the following reaction: 3CaCO3 + 2FePO4 = Ca3(PO4)2 + Fe2(CO3)3 a) which of the following reagents is the limiting reagent?
What is the final temperature when 125 g of iron at 92.3 °C is dropped into 50.0 g of water at 27.7 °C? The specific heat of iron is 0.444 J g-1 °C-1 and the specific heat of water is 4.184 J g-1 °C-1.
Enough of a monoprotic acid is dissolved in water to produce a 0.0189 M solution. The pH of the resulting solution is 6.25. Calculate the Ka for the acid.
If 545 mL of oxygen gas is collected at 21°C and 745 mmHg , what is its volume at STP?
Calculate the molecular rms speeds of He atoms at 10, 100, 1000 K in units of meters per second and miles per hour.
A gas sample containing 1.64 mol at 25°C exerts a pressure of 389 torr. Some gas is added to the same container, and the temperature is increased to 50.°C.
A student collects 22.4 mL of a gas by the process of water displacement at a temperature of 0 °C. If the barometric pressure is 764.6 torr and the vapor pressure of water at 0 °C is 4.6 mmHg,
Distinguishing between Organic Molecules, What chemical tests might be used to distinguish between: pentanal and 2-pentanone, between benzyl alcohol and diphenylmethanol?
What exactly is the reduction of alkynes? I just understand that it is a method for synthesizing alkenes. Why are the leaving groups for E2 reactions not as good as E1 reactions?
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