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What volume is needed to obtain each of the following amounts of solute? Express the answer with the appropriate units
A: Liters of a 2.40M KBr solution to obtain 2.50 moles of KBr
B: liters of a 1.90M NaCl solution to obtain 14.0 moles of NaCl
C: milliliters of a 0.700M Ca (NO3)2 solution to obtain 4.00x10^-2 mole of Ca (NO3)2
At a particular temperature, K=2.0x10^-6 mol/L for the following reaction: 2CO2 (g) at equilibrium with 2CO(g) + O2 (g) If 2.1 mol CO2 is initially placed into a 4.2 L vessel, calculate the equilibrium concentrations for all of the species.
The normal boiling and freezing points of substance X are 87.3 K and 84.0 K respectively. The triple point is at 82.7 K and 0.68 atmosphere. a. Draw a phase diagram for substance X. Label the regions in which the s,l, and g phases are stable.
A 100.0 mL of 10.0 mM phosphate buffer, pH 7.5 (pka2 = 7.2). You are provided with 0.200 M KOH and 0.100 M KH2PO4 solutions, Calculate volume of KOH and KH2PO4 solutions
If the pressure of chloroform vapor in a flask is 154 mm Hg at 25.0°C, and the density of the vapor is 1.25 g/L, what is the molar mass of chloroform?
Calculate the heat given off by the burning Mg in kJ/g. b)Calculate the heat given off by burning Mg in kJ/mol
determine how many grams of C 12 H 22 O 11 (sucrose) (mm = 342 g/mol) does he need if he uses 375 grams of Water? it is given that the vapor pressure of water =17.5 mm Hg. at 20 degree celsius temperature)
Calculate the pH during the titration of 20.00 mL of 0.1000 M hydrazine N2H4(aq), with 0.1000 M HCl after 20.25 mL of the acid have been added. Kb of hydrazine = 1.7 x 10-6
What is the theoretical yield of aluminum oxide if 2.40 of aluminum metal is exposed to 2.10 of oxygen?
The normal melting point of napthalene is 353.05K. When the solution becomes saturated at 310k, we expect the mole fraction of napthalene in the saturated solution.
How many grams of oxygen are required to completely burn 5.90 grams of C3H8 in the following unbalanced equation: C3H8+02
calculate the molar concentration and the molarity of a sulfuric acid solution of density 1.198 g/mol,
When propene is treated with hypochlorous acid (HOCl), the product isolated is 1-chloro-2-propanol.
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