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What is the specific heat capacity in PotassiumChloride?For example Water's specific heat capacity is 4.184 allcombination of elements have a specific heat capacity.
Calculate the freezing points of aqueous solutions of 0.10m glucose and 0.10 m barium chloride (BaCl2)3) calculate the molality of commercial available HCl from the following data formula weight 36.
The average US home uses approximately 7650 kWh (kilowatt-hours) of energy in one year. What amount of NaCl would one need to power a household for one year if delta Hfusio
Commercial marble chips (calcium carbonate) are treated with hydrochloric acid, leaving a solution with some undissolved bits of material and realising carbon dixodie gas.
A solution is made by mixing 138.2 grams of ethanol,C2H6O, (46.069 g mol -1), 103.6 grams ofwater (18.015 g mol -1), and 80.11 grams of methanol,CH4O (32.042 g mol-1). What is the mole fraction of met
750 ml of 0.250 M sodium hydroxide is necessary to neutralize50.0 ml of a hydrochloriccalculate molarity of sodium hydroxide and hydrochloric.
A buffer solution is prepared by dissolving 0.10 mol of acetic acidand 0.10 mol of sodium acetate in 1L of solution. A 10-mL portion of 1M HCl is then added to the solution.
A student placed a mixture of BaO and CaO in a 1.46 L flask containing carbon dioxide gas at 35.0 degrees celsius and 746 mmHg. After the reactions were complete, she found that the CO2 pressure had
A solid mixture contains MgCl2 and NaCl. When 0.5000 gof this solid is dissolved in enough water to form 1.000 L ofsolution, the osmotic pressure at 25.0oC is observed tobe 0.3950 atm.
Assuming that the absolute uncertainties in the measurements of temperature and mass remain unchanged, how could the chemist improve the precision of her results?
"De-icing salt" is used to melt snow and ice on streets. the highway department of a small town is decideing whether to by NaClor CaCl2 for the job. The town can obtain NaCl for$0.28/kg. What is
If 250 ft3/s of air at 122 degrees F and approximately atmospheric pressure is preheated for a combustion process to 932degrees F, what rate of heat transfer is required?
Gasoline is delivered to a farmer for use in the farm's combines. Acylindrical storage tank with a circumference of 5.8 ft is used to store the gasoline until it isused. The farmer uses a yardstick
Calculate the pH at the equivalence point for the titration of 0.20M aniline (C6H5NH2,kb=3.8 x 10-10) with 0.20 M HCl. [Hint: remember the dilution factor caused by addition of titrant to aniline solu
A hydrogen atom undergoes an electronic transition from the n=4 tothe n=2 state. In the process the H atom emits a photon. This photon then strikes a cesium metal surface and ejects an electron.The
Human bodies are actually open systems, and the main mechanism ofheat loss is through the evaporation of water. What mass of watershould be evaporated each day to maintain constant temperature?
ΔH_vap of CCl2F2 is 289 J/g . What mass of this substance must evaporate in order to freeze 130g of water initially at 22 degrees C? (heat of fusion of water is 334J/g; specific heat of
A 39 g slug of silver (specific heat capacity = J/Cg) isheated to 92.1 C and placed in water cooled to 20.0 C (spacificheat4.18 J/cg) if the final temp of the water and silver slug is25.7 C.
A typical four cylinder car engine has a mass of around 71.0 kg. Ifyou assume that the engine is made entirely of steel, it would havea heat capacity of 32.7 kJ/K.
The single proton that forms the nucleus of a hydrogen atom has a radius of approximately 1.0 X 10^(-13) cm {this number is in scientific notation}. The hydrogen atom itself has aradius of 52.9 pm.
Water is one of the few substances on earth that increases involume when it changes from the liquid state to the solid state.What happens to the density of water during this change?
Pure benzene has a freezing point of 5.45 C and a boiling point of80.2C. Its constants for freezing point depression and boilingpoint elevation are -5.07 C/m and +2.53 C/m .
In 2.00 min, 29.7 mL of He effuse through a small hole. Under the same conditions of temperature and pressure, 10.0 mL of amixture of CO and CO2 effuse through the hole in thesame amount of time
In the experiment that we did we first boiled water with sodiumcarbonate mixed in. Then added two teabags and allowed them toboil. The solution was cooled and dichloromethane was then added toit.
Gasoline has been delivered to a farmer for use in the farm'scombines. A cylindrical storage tank with a circumference of6.8 ft is used to store the gasoline untilit is used.