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Calculate the number of moles needed to provide 20g of glucose from a 60% glucose solution
Molecular equation reaction for copper sulfate penta-hydrate with heat (state of reactants and products must be shown) then when the anhydrous copper sulfates with water
Molar mass has the units of grams/mole. Molar mass serves as a conversion factor between numbers of moles and mass. If you know how many moles you have, you can calculate their mass; if you know the mass of a sample, you can calculate the number o..
When 50.0mL of a 1.00M solution of Fe(NO3)3 is mixed with 50.0mL of a 1.00M solution of NaOH a precipitate forms. Determine the mass of the solid produced in this reaction
Determine the quantity of stock 75% EtOH required to prepare 300ml of a 25% EtOH solution.
What is the order of stability of these three isomers based on their steric energies. and Why.
Twenty-five milliliters of liquid nitrogen (density = 0.807g/mL ) is poured into a cylindrical container with a radius of 11.9cm and a length of 17.2cm . The container initially contains only air at a pressure of 760.0mmHG (atmospheric pressure) a..
Calculate the amount of heat liberated (in kJ) from 347 g of mercury when it cools from 85.0°C to 15.0°C.
A mixture of gases contains 10.20g of N2 , 1.80g of H2, and 8.15 of NH3 . The total pressure of the mixture is 1.90atm. What is the partial pressure of N2? What is the partial pressure of H2. What is the partial pressure of NH3.
how many grams of silver chloride can be prepared by the reaction of 100.0 mL of 0.20 Moles silver nitrate with 100.0 mL 0.15 Moles calcium chloride. Calculate the concentrations of each ion remaining in solution after precipitation is complete.
A 36.3 ml aliquot of 0.0529 M H2SO4 (aq) is to titrated with 0.0411 M NaOH (aq) What volumen (ml) of base will it take to reach the equivalence point
An aqueous solution of weak base B of unknown concentration is titrated with a known concentration of acid, HA. Write the balanced chemical equation for this acid-base
There is always a degree of uncertainty in any measurement. How does the use of significant digits reflect this uncertainty
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