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What would happen if a pressed polystyrene top was used to cover the polystyrene cup after the acid and base solutions had been mixed?
Discuss the common-ion effect by comparing the solubility of CaCO3 in 3.0 x 102 ml of water and in the presence of 0.015 mole of Ca(NO3)2.
The temperature of the water and that of the gas are identical at 26oC. how many moles of helium have been evolved.
Which of the isomers of octane has only two peaks in its 13C NMR? Draw the structure of the alkane. 2. Draw the structure of the C4H9Cl isomer given the following proton NMR data:
A 300.0-mL saturated solution of copper(II) peroidate (Cu(IO4)2) contains 0.44 grams of dissolved salt. Determine the Ksp.
The volume occupaied by 1 gigamole of liquid benzene at 25C. The volume occupied by 1 nanomole of Benzene as vapor at STP (assume an ideal gas)
Given a four-carbon chain with two methyl groups and an NH2 group on the fourth carbon and a C=O double bond and an H on the first carbon. It asks me to draw the product of the reaction of this molecule with H3O+ (cat.) and Delta toluene.
to prevent corrosion and make paints adhere better some aluminum products are treated with chromiumiii phosphate before
Perform a similar analysis of a stripping column. In this case, 100 lbmol/h of water with a concentration of 0.0045 lbmol SO2/ft3 is stripped with air to a concentration of 0.0005 lbmol SO2/ft3. The air flow rate is 1.5 times the minimum.
The kinetic energy of the ejected electron is given by 1/2 mv2= h v -?. where m and v are the mass and velocity of the electron
The acid dissociation constant for HClO2 is Ka = 1.1 x 10-2. You add 1.08 g of HClO2 to 427 ml of 0.0150 M NaClO2 solution. What are the equilibrium concentrations of H3O+, ClO2-, and HClO2
The specific heat of silver is 0.235 J/g·K. Its melting point is 962°C, and its heat of fusion is 11.3 kJ/mol. What quantity of heat, in joules, is required to change 7.50 g of silver from solid at 25°C to liquid at 962°C?
If the caffeine concentration in a particular brand of soda is 3.35 mg/oz, drinking how many cans of soda would be lethal?
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