chemistry
determine the specific heat of a 150.0 gram object that requires 62.0 cal of energy to raise its temperature 12.0 C.
physics
what is density of an object has a mass of 12.0 g and a volume of 96.o ml?
ecology
what si the density of an object that has a mass of 12.0g and a volume of 96.0mL
Chemistry
An equilibrium mixture of propanoic acid, CH3CH2COOH and its conjugate base has a pH of 4.87. What form predominates after H3O+ is removed?
Chemistry
Calculate the pH of the resulting solution if 21.0 mL of 0.210 M HCl(aq) is added to a) 26.0 mL of 0.210 M NaOH(aq) b) 31.0 mL of 0.260 M NaOH(aq)
chemistry
the solubility of KNO3 is 8.9 moldm3 at 50c.what is the mass of salt would be require to saturate 200cm3 of water at this temperature.
crime
Since 1991, trends seem to indicate improvement with factors involving teenagers in the United States which could translate into a reduction in juvenile crime. Provide an explanation of at least three factors that would support this belief or provide an explanation of at least...
math
how do you put a fraction into a percentage
statistics
if there were 48 questions on a test and a student ahd 5 correct out of 48,then what would the percentage be?
Math
A laffer leaning against a house maes an angle of 60 degress with the ground. The foot of the leadder is 7 feet from the foundation of the house. How long is the ladder? Please help.
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