How many grams of o2 are required to burn c8h18
Octane has a density of 0.692 g/mL at 20 degrees Celsius. How many grams of O2 are required to burn 1.00 gal of C8H18?
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Why is the identity of an element determined by the number of protons in its nucleus? Why can't the identity be determined by the number of neutrons or the number of electrons?
A 39 L tank contains a gas under a pressure of 186 atm. What volume would the gas occupy at the same temperature at 550 torr of pressure?
Consider a signal x(t) = 10 cos(2pi*fct + 4 cos 2pi*fmt). Assume frequency modulation. The message frequency fm = 2:3 kHz. Calculate the modulation index and find the bandwidth when (a) fm is doubled and
Ater is the working fluid in a regenerative Rankine cycle. The pressure and temperature at the turbine inlet are 8MPa and 550°C, respectively, and the condenser pressure is 7.5KPa.
Calculate the percent yield for the reaction: P4 (s) + 6 Cl2 (g) → 4 PCl3 (l) if 75.0 g of phosphorus reacts with excess chlorine gas to produce 111.0 g of phosphorus trichloride.
A steam power plant operates on an ideal reheat-regenerative Rankine cycle and has a net power output of 80 MW. Steam enters the high-pressure turbine at 10 MPa and 550°C and leaves at 0.8MPa.
The volume of 4 cubic meters of gas is kept under constant pressure. its tempeture is increased from a minus 73 degrees celsius to 127 degrees celsius. What is the new volume of the gas?
A 5.0 g sample of hemoglobin requires 21.6 mL of 0.00310 M potassium permanganate. What is the percent of iron in the hemoglobin sample
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Sahir is the most active student in your kindergarten class. He tends to be very disruptive when the teacher you work with is teaching the class,
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Suppose that a group of researchers would like to explore how we perceive objects in the real world, rather than just in a laboratory
Lifespan psychologists are unlikely to investigate both changes as well as consistencies that exist in different individuals'
Working in the yard, you feel unpleasantly hot and sweaty when you come in the house, so you take a shower and begin to feel better.
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Outline a social issue that is important to you. Describe why it is important to you, why it is important from a societal perspective and how you think