a. Mercury(Hg) has a density of 13.5 g/cm cubed. How much space would 50.0 g of mercury occupies? b. Calculate the mass in grams, of a 3 cubic inch cube of aluminum(Al). The density of aluminum(Al) i What is the volume of a 200-gram object that...
Milliliters are the units of volume in the CGS (centimeter, gram, second) metric system. To calculate volume in milliliters from measurements, convert the original measurement to centimeters before making the calculations. Handy Conversion Factors It's easy to convert between milliliters and other...
Calculate the energies in kJ/mol for an x-ray with 5.30×1029 m. Photon Energy Photon is defined as a small particle that consists of waves of electromagnetic radiation. A photon carries energy which is a function of its electromagnetic frequency (f). E=hf On the other hand,...
So the amount of heat required to heat 5 mol of Hg by 10 K is: You can also make use of this equation to find the number of mols of a substance if you know how much heat was absorbed. For example:You know that a sample of calcium carbonate (CaCO3) has been raised by 5 K, ...
Each gram percent (g percent) Hb is capable of carrying about ___ mL of oxygen. The approximate amount of oxygen in the air is (a) 21%. (b) 77%. (c) 50%. (d) 16%. (e) 35%. Atmospheric pressure at sea...
Calculate ΔH (in kJ) for the process Hg2Br2(s) \rightarrow 2 Hg(l) + Br2(l) from the following information. Hg(l) + Br2(l) \rightarrow HgBr2(s) ΔH^o298^o = -170.7 kJ Hg(l) + HgBr2(s) \rightarrow Hg2Br2(s) ΔH^o298^o = -36.2 kJ From the ...
Calculate the volume V (in liters) of the butane gas (C_4H_{10}) that must be burned at a temperature of 378 (in Kelvin) and a pressure of 756 mm Hg in order to obtain 50,000 kJ of heat, when the combustion products are carbon dioxide and water only. ...
The specific heat capacity of Hg(l) is 0.139 J/g degrees C. Answer in units of joules. Calculate the total amount of heat (kcal) released when 2.0 times 10^5 kg of water at 100 degrees C cools to room temperature of 25.0 degrees C (C_{water,...
Calculate the specific heat of material if 288 J of energy were required to heat 50.5 g of the material from 298 K to 330 K. What are the units? Specific Heat Capacity The specific heat capacity of materials is called such b...
a) When a 0.2800 gram sample of this limestone was decomposed by heating, 75.0 mL of CO_{2} at 750 mm Hg and 20^{\circ}C were evolved. How many grams of CO_{2} were produc A mixture of CaCO_3 and CaO has a mass of 2.250 g. After heating, the mass...