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A 127 g piece of metal is heated to 288 °C and dropped into 83.5 g of water at 26.0 °C. If the final temperature of the water and metal is 58.5 °C, what is the specific heat of the metal (J/g°C)?
Calculate the percent yield of the reaction of 205 grams aluminum hydroxide with 751 grams hydrogen sulfate (sulfuric acid), given that 252 grams aluminum sulfate are produced
a 40-year-old manager at a prominent legal firm in l.a. experiences abdominal pain post lunch. he goes to the restroom
The maximum mass of chloroform that can be adsorbed by the fiber after a 30 minute exposure is 350 ng. The extraction efficiency for chloroform utilizing the SPME method is 85% throughout the entire concentration range that can be determined. The ..
The water is analyzed and found to be 735 ppm in phosphate ion. What is the % phosphate ion in the dry detergent? What is the % phosphorus in the dry detergent? How many grams of phosphate are in the 300. g sample?
A 15.0 L flask contains 2.00 moles of N2 and 6.00 moles of H2 at 728 oC. A. Before any reaction takes place, what is the partial pressure of N2 in the flask?
Find the volumes required of Catechol and Ethanol to create a mixture of 50uM Catechol and 50uM Ethanol. Both solutions are 5mM stock
Problem- Predict the products and mechanisms of the following reactions. When more than one product or mechanism is possible, explain which are most likely.
Define how the boiling points, melting points and densities are different for Butane and 2-methylpropane (isobutane)
Sorbose, C6H12O6, is used in making vitamin C. A sorbose sample containing 48 g of carbon atoms also contains ____ g of hydrogen atoms.
Suppose that the microwave radiation has a wavelength of 11.6cm . How many photons are required to heat 225 mL of coffee from 25.0 C to 62.0C ? Assume that the coffee has the same density, 0.997 g/mL, and specific heat capacity, 4.184 , as water o..
The water level in a graduated cylinder initially at 217 rises to 286 after a piece of lead is submerged. What is the mass in grams of the lead?
State the equation which shows the strong electrolyte Ca(NO3)2 dissolving in water comprising states of matter (s, g, l, aq) and correct coefficients
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