What is the mass of the magnesium oxide obtained
An 18.0-g sample of magnesium is completely burned in the presence of air to form magnesium oxide. What is the mass of the magnesium oxide obtained?
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What is the molarity of a solution that contains 35.0 g of vitamin B1 hydrochloride (molar mass = 337 g/mol ) in 110 g of solution?
A bag of potato chips contains 585 mL of air at 25°C and a pressure of 765 mm Hg. Assuming the bag does not break, what will be its volume at the top of a mountain where the pressure is 434 mm Hg and the temperature is 4.3°C?
3.0 L of He gas at 5.6 atm pressure and 25 degrees celcius and 4.5 L of Ne gas at 3.6 atm and 25 degrees celcius are combined at constant temperature into a 9.0 L flask. What is the total pressure in atm in the 9.0 L flask?"
While out testing stream water quality in a local fresh water creek, you measure the dissolved oxygen concentration to be 6 mg O2(aq)/L and water temperature of 20°C.
MoS2(s) + 7/2 O2(g) MoO3(s) + 2 SO2(g) MoO3(s) + 3 H2(g) Mo(s) + 3 H2O(s) Calculate the volumes of air and hydrogen gas at 23°C and 1.00 atm that are necessary to produce 1.00 103 kg of pure molybdenum from MoS2. Assume air contains 21% oxygen
A steam power plant operates on an ideal Rankine cycle with two stages of reheat and has a net power output of 120 MW. Steam enters all three stages of the turbine at 500°C.
The enthalpy of formation of compound X is -612 kJ/mol, and the sole product of its combustion has a enthalpy of formation of -671 kJ/mol. What is the enthalpy of combustion of compound X?
This paper should have at least 7 pages of narrative (3,000 – 4,000 words), plus exhibits. Place particular emphasis on risk management and offshore borrowing/investing activities. Use a publicly traded firm, use (ask me) as the multinationa
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a) What percentage of the capture fruit flies demonstrated heterozygosity for MDh? b) What percentage demonstrated type B? type A?
How do the notions of allopatric vs. sympatric speciation differ from each other. Which one is more accepted than the other, and why?
You are experiencing inflamed, bloody gums in your mouth as well as bad breath. Your doctor suspects that you have a bacterial infection
Problem: Present a picture of an item that you think represents a part of the generalized human cell.
You hypothesize there may be a loss-of-function mutation in an intracellular component of the skin signaling pathway
Many plants can produce the toxic compound hydrogen cyanide in response to tissue damage by herbivores. For example, lima bean plants can produce hydrogen
As she tensed her muscles, the pitch of the tone would increase, and as she relaxed them, the pitch would decrease. What sort of training is this?