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a) What is the best air/fuel ratio for an automobile engine? b) If the mixture is made leaner, What happens to the hydrocarbon emissions? c) If the fuel mixture is richer, How does this affect NOx emissions?
calculate mass of CCl 4 that formed if 1.5 moles of CH 4 react with 1.4 moles of Cl?
Determine the mass of lithium hydroxide produced when 0.38 g of lithium nitride reacts with water to make Ammonia (NH3) and Lithium hydroxide.
A tightly sealed 5.0 L flask contains argon at 69.0 deg. C and 781 mm Hg. The flask is heated until the pressure is doubled. What it the temperature of the gas.
3.38 grams of nitrogen gas are mixed with excess oxygen gas. The reaction yields 6.63 grams of nitrogen monoxide. nitrogen (g) + oxygen (g) -> nitrogen monoxide (g)
Which of the following compounds will produce an acidic solution when dissolved in water? What is the OH- (hydroxide ion) concentration in a solution with pOH = 2.45.
A 2.914-g sample gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temperature greater than 170 C in a crucible until a constant mass is reached.
The volume of a gas is 93 mL when the temperature is 91 C. if the temperature is reduced to 0 C without changing the pressure, what is the new volume of the gas
Active ingredient in household bleach is NaOCl. Find % concentration (w/v) in household bleach. (Mass of NaOCl per mL of solution) *Atomic mass of NaOCl = 74.44217 Question 2: Using the % w/v of NaOCl on the bleach bottle, calculate the percent er..
How many grams of Na3PO4 will be needed to produce 550 ml of a solution that has a concentration of Na+ ions of 1.00M ?
How many independent linear combinations are possible for four 1s orbitals? (b) Draw pictures of the linear combinations of H1s orbitals for a hypothetical linear H4 molecule
Determine the mass of sodium phosphate that yields 1.00 g of calcium phosphate precipitate.
What is the phosphoanhydride bond on the NADH structure? Although NADH and ATP both have phosphoanhydride bonds
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