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Calculate the amount of solution (g or mL) that contains each of the following amounts of solute. Express your answer to 3 significant figures and include the appropriate units.
A: 6.00g of NaCl from a 3.1%(m/m) NaCl solution
B: 7.0g of NaOH from a 45%(m/m) NaOH solution.
C: 12.6mL of ethanol from a 7.0%(v/v) ethanol solution.
The wastewater solution from a factory containing high levels of salts needs to be diluted before it can be released into the environment. Therefore, two containers of waste solution are separated by a semipermeable membrane and pressure is applie..
How much ice(in grams) would have to melt to lower the temperature 352ml of water from 25degrees celcus to 5 degrees celcus? ( assume the density of water is 1.0g/ml)
What is the equilibrium partial pressure of N2O4? (atm) (b) Calculate the value of Kp for the reaction. (c) Calculate the value of Kc for the reaction.
calculate the mL of MnO4 added to reach the endpoint. (b) calculate moles of MnO4 added to reach the endpoint. (c) calculate the number of moles of H2O2 in sample.
calculate the difference in mass that is hold by a 500.0mL flask at a temperature of 0.0°C from that at temperature of 20.0 °C? (you can assume the volume of the sample at 0.0 °C temperature =volume of the sample at 20.0°C)
Explain how you arrived at this conclusions. Write a balance chemical equation for the reaction that occurs when sodium cyanide dissolves in water.
Iron crystallizes in a body-centered cubic structure. The volume of one Fe atom is approximately 8.37 10-24 cm3, and the density of Fe is 7.874 g/cm3. Calculate an approximate value for Avogadro's number.
Calculate the equilibrium constant for the reduction of bismuth from the Bi(III) tetrachloro ion to the elemental metal.
Lauryl alcohol, C12H25OH, is prepared from coconut oil; it is used to make sodium lauryl sulfate, a synthetic detergent. What is the molality of lauryl alcohol in a solution
In the electrolysis of aqueous NaCl, how many liters of Cl2(g) (at STP) are generated by a current of 7.50 A for a period of 100. min.
the pressure is measured as 8.75 atm. Which of these three gases below could be in the container and why? 1) Ar, 2)Co2, 3)HCl
Determine the mass of solid sodium formate of MW 68.0 must be combined to 150 mL of 0.66 mol/L
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