Explain the percentage of caco3 in the original hydrated
If a 5.327 g sample weighed 4.281 g after dehydration, determine the percentage of CaCO3 in the original hydrated sample when a sample is composed of a mixture of CaCO3 and CuSO4*5H2O. A chemist decided to estimate the mixture by dehydrating it.
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Calculate the wavelength of radiation required to ionize the hydrogen electron from the n = 2 energy level. Ionization energy is defined as the minimum energy required removing an electron from the ground state (n0) to infinity (n∞).
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You win game by pushing buttons so that all lights are off. Do one of given. Prove that if n=6, you can always win game regardless of state of the lights at the starting of game.
2Na + 2H2O ---> 2NaOH + H2 . If 7.2 g of Na undergoes reaction with water and the resulting hydrogen is burned in oxygen to form the water, determine the numbers of grams of water would be formed?
If a 5.327 g sample weighed 4.281 g after dehydration, determine the percentage of CaCO3 in the original hydrated sample when a sample is composed of a mixture of CaCO3 and CuSO4*5H2O. A chemist decided to estimate the mixture by dehydrating i
A tennis ball which is having the 250 mL of air at the 1.25 atm. A tennis star soups it up by injecting 50 mL of air at 1.0 atm into the ball. Calculate the final pressure of the ball in atmospheres, assuming no chance in volume of the bal
Joe reads that 1 out of 6 eggs haves salmonella bacteria. So he never employs more than five eggs in cooking. If eggs do or don't have salmonella independently of each other, the number of contaminated eggs when Joe uses five selected at random ha
Suppose the skillet is cooled to room temperature, 21*C. An iron skillet weighing 1.78 kg is heated on a stove to 165*C. Explain how much heat energy (in joules) must be removed to effect this cooling when the specific heat of iron is 0.449 J/(g&
Whipple Company wishes to purchase the numerically controlled (NC) machine to be utilized in producing specially machined parts for manufacturers of tractors.
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