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determine whether a solid forms when solutions containing the following salts are mixed. if so write the net ionic equation for the reaction. a)Na3PO4(aq) and AgNO3(aq). b)K2SO4(aq) and Na2CO3(aq). c)Pb(NO3)2(aq) and Na2CO3(aq). d)BaCl2(aq) and KOH(aq).
All molecular compounds may have London, dipole-dipole, and hydrogen-bonding intermolecular forces affecting their physical and chemical properties.
Silver chloride, often used in silver plating, contains 75.27% Ag by mass. Calculate the mass of silver chloride required to plate 155 mg of pure silver.
A cell measured by a student was found to be -0.461V against a Ag/AgCl reference electrode (0.222V). What is the potential when measured against SCE and NHE
Calculate the mass of propylene glycol that must be added to 0.330 of water to reduce the vapor pressure by 2.88 torr at 40°C (Pressure of H2O is 55.3 torr at 40°C ).
you store the buffer in the fridge overnight (4 degrees). Calculate the pH of the buffer when you take it out of the fridge the following morning.
The DHfus of ethanol (C2H5OH) is 4.60 kJ/mol. How many kilojoules of heat are required to melt 24.5 g of ethanol at its freezing point.
A 45 kg person drinks 530. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 15% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake?
These sections had about 1000 people. There were 10 of these sections in the picture. The other 10 sections had people standing further apart. These sections contained about 500 people each. How many people would you estimate were at the event?
When the two substances reach thermal equilibrium, the final temperature is 24.2 degrees celcius. What is the mass of the copper block?
Determine types of hybridized orbital for each carbon in these compounds.
The element cesium (Cs) freezes at 28.4 degree celsius, and its molar enthalpy of fusion is delta H fusion =2.09kJ/mol. a.) when molten cesium solidifies to Cs (s) at its normal melting point, is delta S positive or negative? b.)calculate the valu..
Given that Ea for a certain biological reaction is 48kJ/mol and that the rate constant is 2.5 x 10^-2 s-1 at 15 degrees celsius
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