Chemistry
A 0.528 gram sample of a metal, M, reacts completely with sulfuric acid according to: M+H2SO4 -> MSO4+H2 A volume of 205 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0 Torr and...
Chemistry
T1 is 288K but what is T2?
Chemistry
2.05 g of an unknown gas at 45 °C and 1.00 atm is stored in a 1.15-L flask. What is the density of the gas?
Chemistry
At a certain temperature and pressure, one liter of CO2 gas weighs 1.45 g. What is the mass of one liter of C4H10 gas at the same temperature and pressure?
Chemistry
Is the answer 1.85x10^6 L?
Chemistry
A hot air balloon is filled with 1.39 × 106 L of an ideal gas on a cool morning (11 °C). The air is heated to 105 °C. What is the volume of the air in the balloon after it is heated? Assume that none of the gas escapes from the balloon.
Chemistry
An ideal gas is allowed to expand from 6.00 L to 45.0 L at constant temperature. By what factor does the volume increase? ? Number The pressure will Increase by that factor or decrease by that factor? If the initial pressure was 105 atm, what is the final pressure?
Math HELPPP
In a survey of 2000 adults 50 years and older of whom 40% were retired and 60% were pre-retired, the following question was asked: Do you expect your income needs to vary from year to year in retirement? Of those who were retired, 33% answered no, and 67% answered yes. Of thos...
Calculus
What is the derivative of 7e^(3sin^(4x+5))?
Calculus
What is the derivative of 2^(5x)tan(x^2)
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