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Aqueous sulfuric acid H2SO4 will react with solid sodium hydroxide NaOH to produce aqueous sodium sulfate Na2SO4 and liquid water H2O. Suppose 9.81 g of sulfuric acid is mixed with 11. g of sodium hydroxide. Calculate the maximum mass of sodium sulfate that could be produced by the chemical reaction. Round your answer to 3 significant digits.
The vapor pressure of pure ethyl bromide at this temperature is 400.0 torr. Assuming an ideal solution, what is the molecular mass of the compound?
Question- A chemist mixes 28.8g of water with 61.4g of 2-methylpyrazine and 25.6g of acetone. Calculate the percent by mass of each component of this solution. Approximate each of your answers to three significant digits.
what is the energy of light that is emittted by one iron atom during its decay from an excited state to a ground state
use oxidation number to show which element is oxidized and which element is reduced in this equation 2H2o2----2H2O+O2
A sample of 1.00 mol perfect gas molecules at 300K with Cp,m=7R/2 is put through a constant-volume heating to twice its initial temperature. Calculate q, w, delta U, and delta H for each step.
Problem- Write the ion-product expression at equilibrium for each compounds (a) Calcium sulfate. (b) Chromium (III) carbonate (c) Magnesium hydroxide (d) Arsenic sulfide.
Which equation represents a reaction that provides the heat of formation of CHCl3 (l)? a) C (s) + H (g) + Cl3 (g) à CHCl3 (l) b) 2 C (s) + 3Cl2 (g) + 2H(g) à 2 CHCl3 (l)
How many theoretical plates does the column have? What is the plate height (in mm) of the column if the column is 11.7 cm long?
capsaicin the compound that gives the hot taste tonbspchili peppers has the formula c18h27no3.a calculate its molar
Metal X was plated from a solution containing cations of X. The passage of 48.25 C deposited 31 mg of X on the cathode. What is the mass of X (in grams) per mole of electrons.
A solution which contains 41.0 g of an unknown molecular compound in 312 g of water freezes at -2.23°C. What is the molar mass of the unknown?
A piece of sodium metal reacts completely with water as follows. 2 Na(s) + 2 H2O(l) 2 NaOH(aq) + H2(g) The hydrogen gas generated is collected over water
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