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Problem- Station WRKO Boston boasted of emitting 43.0 kWatt of power from their radio antenna. They operate on a frequency of 143.0 kHz. What is the wavelength (m) emitted by the RKO antenna?
Rework your solution from the beginning and check each step carefully.
When 100.g Mg3N2 reacts with 75.0 g H2O, 15.0 g of NH3 is formed. What is the % yield?
When a 0.528 g sample of a compound containing only carbon, hydrogen, and oxygen is burned, 0.306 g of water and 0.815 g of carbon dioxide are formed. What is the empirical formula for this compound?
An open container holds 0.550 kg of ice at - 15.0 degree celsius. The mass of the container can be ignored. Heat is supplied to the container at the constant rate of 800 J/min for 500 min .
How much heat energy is required to melt one ice cube in a soft drink to form liquid water 0 C, if the ice cube has a mass of 18.9g? molar heat fusion of water is 6.01kl/mol
Identify the cation and anion. Express the answer in terms of the formula of the salt. A green powder dissolves in water and gives a pure white precipitate with acidic AgNO3. When the solution is heated with H2O2 and NaOH, it turns a yellow color,..
The respective molar heats of fusion and vaporization in kJ/mol for H2O are 6.008 and 40.67. Specific heats in J/g *C for the solid, liquid, and gas phases are 2.092, 4.184, and 1.841, respectively.
Find the change in entropy (S) for the system, surroundings and universe for the conversion of 1 mol of ice at 0 degrees C and 1.00 atm to 1.0 mol of steam (vapor) at 100 degrees C and 0.50 bar
determine the total amount of heat absorbed by 100.0 grams of water at its boiling point 100 celsuis to chang from
what concentration of oxygen would be needed to maintain equilibrium in a system where NO and NO2 are known to be at equal concentrations
Explain what is the pH at the point during a titration when 31mL of 0.200 M HCL has been added to 27mL of 0.0500 MNH3 solutions. HCL is strong acid, Kb = 1.8×10-5 for NH3.
Explain how would you handle the response and how would you determine the proper type of PPE to be utilized in this incident. Explain what type of PPE would you recommend
A.) An MH ion seen in a mass spectrum with composition C10H8N3S+ B.) A fragment seen in a mass spectrum with composition C3H60+ C.) C10SiH15Br2FNPO3
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