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A 14.824g rock is placed in a graduated cylinder containing 45.8mL of water. Calculate the density of the rock if the water level rises to 55.2mL.
Stearic acid is made by hydrolyzing fat from cattle. The fat, tallow, is predominately glycerin tristearate (formula C57 H110 O6 molecular weight 891.4g/mol)
A 125 ml sample of a solution that is 2.6x10^-3M in AgNO3 is mixed with a 230 ml sample of a solution that is 0.10M in NaCN. After the solution reaches equilibrium, what concentration of Ag+ remains?
what is the total number of joules absorbed by 65.0g of water when the temperature of the water is rasied from 25.0 c to 40,0 c?
As of the writing of this text, EPA standards limit atmospheric ozone levels in urban environments to 84ppb. How many moles of ozone would there be in the air above Los Angeles County.
Monochloroacetic acid (HC2H2ClO2) is a skin irritant that is used in "chemical peels" intended to remove the top layer of dead skin from the face and ultimately improve the complexion.
describe a working voltaic cell that incorporates a standard nickel half-cell and that has a net cell potential greater than 1 V. Include: 1. balanced equations and Enet calculations
If 400. mL of NO at STP is reacted with 500. mL of O2 at STP, calculate the partial presure of NO2 after the reaction goes to completion. Assume constant volume.
Acetic acid, CH3CO2H, is made industrially, by the reaction of methanol and carbon monoxide. If you produce 1.00L of acetic acid (d= 1.044 g/mL) by this reaction, how much energy as heat is evolved.
What is the volume of the gas at STP conditions? b.) What is the molar volume of the gas?
Calculate ?H for the reaction 2C(s) + H2(g) ? C2H2(g) given the following reactions and their respective enthalpy changes
A gas made up of atoms escapes through a pinhole times as fast as gas. Write the chemical formula of the gas.
The inner and outer surfaces a spherical shell with radii of 1cm and 2cm are 300C and 100C respectively .If the thermal conductivity of the shell is 2w/m.k,determine the heat transfear through the shell.
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