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When a substance is heated it glows and emits a certain amount of radiant energy that corresponds to particular energies in the electromagnetic spectrum. Transitions to n=1 as the final shell, fall in the ultraliolet region, and constutute the Lyman series. Transition to n=2, are in the visible region and the constitute
How many mL of 3.00 M HCI should be added to react completely with 16.8g of Na2CO3 according to the following equation?
At 20 degrees C, 0.164 mg of H2 dissolves in 100.0 g of water when the H2 pressure above the water is 1.000 atm. Find the Henry's law constant for H2 is water at 20 degrees C.
If you wanted to adapt this procedure to prepare the analogous propoxy compound, how much propyl iodide would you have to use to carry out the reaction on the same scale?
Erythrocytes phosphorylate glucose to glucose 6-phosphate with the help of the enzyme hexokinase instead of glucokinase. Hexokinase has a Km = 0.04 mM.
Hydrogen can be extracted from natural gas according to the following reaction: CH4(g)+CO2(g) 2CO(g)+2H2(g) Kp=450 at 825K An 85 L reaction container initially contains kg of CH4 and 55.4 kg of CO2 at 825 K Assuming ideal gas behavior,
The precipitate formed was washed and dried .Its mass was 0.287g.Find the mass of NaCl in the initial sample.
A certain second-order reaction (B--> products) has a rate constant of 1.40×10^-3 M^-1*s^-1 at 27 Celsius and an initial half-life of 280s . What is the concentration of the reactant B after one half-life?
How does the answer for part (a) change if the gas of interest is He? c) What is the largest molecular mass that is capable of escaping Earth's surface at 298 K?
A sample of granite contains various oxides of silicon, aluminum, sodium, potassium, calcium, and iron. Each of these oxides gives the granite a coarse-grained texture.
if you have 310 mL of water at 25 degrees celsius and 110mL of water at 95 degrees celcius, what is the final temperature of the mixture?
A temperature increase of 67.4 K was recorded after 1.500 g of metallic magnesium (24.305 amu) reacted completely with 100.0 mL of 1.00 M aqueous HCl in a non-ideal coffee cup calorimeter with a heat capacity of 16.0 J/K.
Which of the following factors increase the likelihood that a reaction will be spontaneous? 1. Energy is released in the form of heat. 2. A liquid is generated from a solid
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