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4.41-g sample of a salt dissolves in 9.10 g of water to give a saturated solution at 25°C. What is the solubility (in g salt/100 g of H2O) of the salt.
Does a mutation causing a substitution of one base pair in a strand of DNA necessarily result in a new amino acid in the protein coded for that gene? Explain.
How many moles of (NH4)3PO4 are present in 100.0 mL of 2.50 M (NH4)3PO4?
Identify the steric number, shape, hybridization about the central atom and molecular polarity of sulphuryl chloride, SO2Cl2.
A vessel containing 45.0 cm3 of helium gas at 25°C and 106 kPa was inverted and placed in cold ethanol. As the gas contracted, ethanol was forced into the vessel to maintain the same pressure of helium.
25.0 ml of a 0.2450 M NH4Cl solution is added to 55.5ml of 0.1655 M FeCl3. What is H concentration of chloride ion in the final solution.
Calculate the volume in milliliters of a 0.30 M acetic acid solution that contains 0.0142 mol HC2H3O2.
calculate the volume in mililiters (mL) of 6 M NaOH needed to make 500 mL of a 0.100 molar (M) NaOH solution.
If a 180 mg piece of gold (density =19.32 ) is hammered into a sheet measuring 2.41.0 , what is the average thickness of the sheet in meters.
When 64.5 g of HCl are allowed to react with 17.6 g of O2, 50.4 g of Cl2 are collected. Determine the limiting reactant, theoretical yield of Cl2 and percent yield for the reaction.
Solubility of calcite (CaCO3) will increase with a decrease in temperature and decrease with an increase in temperature. This is because the solubility of calcite is dependent on the solubility of CO2.
when 50.0 g of Copper are reacted with silver nitrate solution Cu + 2AgNo3 - Cu(No3)2 +2 Ag 148 g of silver are obtained. what is the percent yeild of silver obtained?
How much heat is needed to vaporize 2.42 g of liquid oxygen if the molar heat of vaporization for oxygen is 1,629 cal/mole?
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