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If 62.8 g Ca react with 92.3 g HCl according to the reaction below, how many grams of hydrogen gas will be produced, and how many grams of the excess reactant will be left over?
Unbalanced equation: Ca + HCl → CaCl2+ H2
Be sure to show all of your work.
A particular voltaic cell operates on the reaction below, giving an emf of 0.865 V. Calculate the maximum electrical work generated when 20.0 g of zinc metal is consumed. Zn(s) + CI2(g) ? Zn2+(aq) + 2 Cl ?(aq)
Are samples A as well as B distinguishable by elemental analysis, X-ray diffraction, absorption spectroscopy or emission spectroscopy. Offer a one sentence explanation for each.
If 72.4 kJ of heat is supplied to a 852 g block of metal, the temperature of the metal increases by 9.6°C. Calculate the specific heat capacity of the metal in J/g·°C.
what is the composition of vapor of a pentane-hexane solution that has a vapor pressure of 373 torr at 25 degree celcius? Given is Pure Hexanes and pentanes vapor pressure at 25 degrees celcius. Pentane - 511 torr. Hexane -150 torr.
The enthalpy change for the combustion of monoclinic sulfur to CO2 is -9.376 kJ/g. Under the same conditions, the combustion of rhombic sulfur to CO2 is -9.293 kJ/g.
A student heated a 4.901 g sample of hydrated iron chloride. After heating, the anhydrous iron chloride has a mass of 3.010 g. Calculate the percentage by mass of water in the hydrated compound.
When is the standard enthalpy of a reaction for which the equilibrium constant is doubled,when the temperature is increased by 10 K at 298 K
determine how much energy will be required to heat 69.7 gal of h2o from 22 degree celsius to 110 degree celsius if it
0.90 of hydrogen chloride () is dissolved in water to make 5.5 of solution. What is the of the resulting hydrochloric acid solution?
Calculate the entropy change that occurs when 3.5 moles of an ideal gas expands from 1.75 L at 20 degress Celsius to 8.46 L at .54 atm.
When ethanol burns C2H5OH + 3O2 ==> 2CO2 + 3H2O , how many moles of water are produced as 48.380 moles of carbon dioxide are produced.
Problem- Transition metals show great similarities within a given period as well as within a vertical group. Why
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