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A sample has a specific heat of 0.155 cal/g·°C. How much energy will be required to raise the temperature of the sample from 20.0°C to 35.0°C if the sample has a mass of 8.0 g?
Explain what is the molarity of the complex in the flask after dilution and would love the steps to get to this
can the solubilities of lead formate pbcho22pkso6.70 pka3.75 and copper iodate cuio32pkso7.13 pka0.79 be made equal by
a 0.4 kg aluminum part increases its temperature by 25 degrees celsius. how much thermal energy is transfered to the part by heat?
How many molecules of gas could be confined in 230 mL at a pressure of 740 mmHg and a temperature of 25 degree C?
Calculate the mass of material required if 1500 calories of energy causes a change from -27 degrees fahrenheit to 91 degrees celcius and the specific heat capacity is 0.25 joules/gram-degree C.
Explain what is the concentration of Pb2+ must be exceeded to precipitate PbCl2 from a solution that is .01M in the chloride ion Cl- Ksp for lead Chloride is 1.17x10-5
A sector instrument is designed to operate with a radius of 30.0 cm and an accelerating voltage of 3000 V. Calculate the magnetic field necessary to focus the M positive ion of methane (CH^4)
Question- Synthesizes 5-ethyl-4-nonene from carbon compounds of 2 carbonsor less. Use a Wittig reaction
how do you find delta change H° of gaseous HCl with the following information: 1) N2(g) + 3H2 (g) > 2NH3(g) delta changeH°(rxn) = -91.8 kj 2) N2(g) + 4H2 (g) +Cl2 (g) > 2NH4Cl(s) detla changeH°(rxn)= -628.8 kj 3) NH3 (g) +HCl (g) >NH4Cl(s) delta c..
A block of copper, mass at 500 grams and initially at T = 293 K is in thermal contact with an electric heater at a resistance 1.00 kiloOhms and negligible mass. A current of 1.00 A is passed for 15.0 seconds. How do you calculate the change in ent..
The second container is kept at 149.2 K. What is the volume (in liters) of nitrogen gas in container 2? Containers are kept at a constant pressure.
a spectrophotometer was calibrated with a 6.1times10-4 m in cu cu-neocuproine solution. this calibration was carried
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