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Iron has a density of 7.9 g/ cm3. What is the mass of a cube of iron with the length of one side equal to 55.0 mm?
Determine what amount of heat is required to increase the temperature of sixty grams of ethylene glycol from 15.1 degree Celsius to 40.3 degree Celsius?
A 5.0×101 sample of water absorbs 355 of heat.If the water was initially at 25.9, what is its final temperature.
Periodicity in the ionization energy and balancing the equation - Complete the following chemical reactions by writing the product(s) and balancing the equations:
A solution, made by dissolving 62.07 g of a nonelectrolyte in 500 g of H2O, exhibits a freezing point of -1.86 °C. Determine the molecular weight of this nonelectrolyte compound? For water Kf = 1.86 °C m-1Kb = 0.51 °C m-1
Properties of subatomic particles - Fill in the missing relative masses and relative charges for each of the subatomic particles
Determine What is the difference in energy between the ground and excited state if the absorption spectrum of rhodopsin is centered at roughly 500. nm.? what is the probability of rhodopsin populating the first excited state At a physiological tem..
Using a sample of water with a mass of 46.0 grams at a temperature of -58. Degree Celsius calculates how many Joules of energy (E) are necessary to heat the ice to 0 degree Celsius. Specific heat of ice= 2.1 J/g C).
What is the mole fraction of HO2CCH2CHOHCO2H in this solution suppose you dissolve 2.56 grams of malic acid HO2CCH2CHOHCO2H in 50.0 grams of H 2 O.?
What is the mass, in grams, of 55.0 mL of the liquid propylene glycol, a moisturizing agent for foods, which has a density of 1.036 g/mL at 25 degress Celcius.
An electron traveling at the velocity of 3.7 105 m/sec has an uncertainty in its velocity of 2.34 105 m/s. determine the uncertainty in its position?
Make a new solution with a total volume of 10.0 mL and How many moles are contained in 500.0 mL of solution
Compute the number of gms of CoCl2 that would be needed to prepare the solutions:(a) 550 mL of a 1.75 M solution (b) 210 mL of a 0.0180 M solution.
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