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A portable electric water heater transfers 255 watts (W) of power to 5.5 L of water, where 1 W = 1 J/s. How much time (in minutes) will it take to heat the 5.5 L of water from 24 degrees C to 41 degress C? (Assume that the water has a density of 1.0 g/mL
Why is sodium chloride added to the tea solution before extracting with ethyl acetate? 4 grams of calcium carbonate was added to 90 ml's of water in a flask
carbon dioxide escapes due to A leak , leaving only 3.5 moles of CO 2 inside the balloon. Determine the new volume of the balloon?
calculate the energy (in kJ) of a photon which has a wavelength of a mircowave with a wavelength of 2.84 cm
In clavulanic acid there is a carbon-atom that that has an oxygen-atom, a nitrogen-atom, and a carbon atom attached to it
Considering the molecule HOOH. What happens to the overlap in the σ bond between the 2 O atoms as one hydroxyl group is rotated in a clockwise relative to the other hydroxyl group?
what mass in grams of hydrogen gas is produced if 20 mol of Zn are added to excess hydrochloric acid according to Zn+2HCl yields ZnCl2+H2?
Calculate E when 900.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant pressure of 0.95 atm. R = 8.314 J/mol*K and R = 0.08206 atm*L/mol*K
What mass of helium gas is needed to pressurize a 112.0 L tank to 262 atm at 25°C?
63.0 mL of a 1.20 M solution is diluted to a volume of 208 mL. A 104-mL portion of that solution is diluted using 157 mL of water. What is the final concentration.
1.0 mol of CaCN2 and 1.0 mole of water are mixed together: CaCN2 + 3 H2O → CaCO3 + 2 NH3 How much NH3 could be produced?
during exercise a person breathes in between 100 and 200 L of air er minute. if a person is exercising enough to breathe in an average of
If the reaction 2H2S(g) ↔ 2H2(g) + S2(g) is carried out at 1065°C, Kp = 0.0120. Starting from pure H2S introduced into an evacuated vessel at 1065°C.
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