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How much heat is necessary to change 500 g of ice at 10°C to water at 20°C? A quantity of steam (200 g) at 110°C is condensed, and the resulting water is frozen into ice at 0°C. How much heat was removed?
how can you determine if they are the same without using any form of spectroscopy? explain the physical/chemical reasons why your proposed method would work
which two metals are plated, and what is the total potential? c) If 3.00 g of metal is plated in the voltaic cell, how much metal is plated in the electrolytic cell?
the rates of dehydration for cis-2-methylcyclohexanol and trans-2-methylcyclohexanol were determined. the rate of
Problem- A Lewis structure for the NO+ ion that obeys the octet rule for both atoms must show how many bonds
A sample of calcium metal is contaminated by a certain amount of highly toxic, radioactive thorium metal (Th). A 10.00-gram sample of this mixture is dissolved in acid, and reacted with excess sodium oxalate to form a precipitate which is a mixtur..
A pound of coffee beans yields 50 cups of coffee (4 cups = 1 qt). How many milliliters of coffee can be obtained from 5 g of coffee beans?
Gas phase irridation of 2-pentanone produces acetone and ethylene in about 90% yield along with 10% 1-methylcyclobutanone. Accoutnt for the formation of these three products
ben franklin dropped the oil on the surface of a lake and found that 2 ml of oil gave a circle of radius 30 m.
Question- A crystal lattice has copper at all the corner positions and nickel at all the edge positions in a unit cell. What is the formula of the unit cell
A buffer is prepared by mixing 429 mL of 0.255 M NaOH with 677 mL of 0.795 M sodium bicarbonate (NaHCO3). Given that the Ka1of H2CO3 is 4.5 x 10-7
S8 also known as orthorhombic sulfur, what type of chemical bonds does S8 have? what type of crystal is this?
For Iron (III) Hydroxide the value of Ksp is 4.0 x 10-38. If we have 30.0 ml of a saturated solution of this insoluble hydroxide, Explain what would be the minimal HCl concentration, which will need 40.0 ml of this acid solution, to reach the equi..
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