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A patient received 5.0 g of NaCl in 8 hours.
How many milliliters of a 0.40 % (m/v) NaCl (saline) solution were delivered. Put the volume in milliliter to two significant figures?
Why is lactose much more soluble in water than in ethanol?
The concentration of the first ion to precipitate (either Al3+ or Ca2+) decreases as its precipitate forms. What is the concentration of this ion when the second ion begins to precipitate
1) What is the shape around the nitrogen atom in NH3. Draw the shape of the molecule. 2)? Draw the electron symbol for MG+2. 3) Draw the electron symbol for C
Problem- Describe the mechanism of the reaction for acetic acid plus isopropanol in sulfuric acid and name the compounds and intermediates.
A 25.0 mL sample of river water was titrated with 0.0010 M Na2Cr2O7 and required 8.3 mL to reach the end-point. What is the chemical oxygen demand, in milligrams of O2 per liter, of the sample?
what would the final common temp be assuming no heat loss? Use Cp for ethanol = 60.0 J K -1 mol -1 and Cp for Copper = 0.380 J K -1 g -1.
This would set STP conditions to be 1 bar and 273 K. Explain what would be the value of the "new" molar volume of an ideal gas under the "new" STP conditions
Consider titrating 15.0ml of a .245M solution of hydazine, H2NNH2, with a .453M HCl solution. The Kb value for hydrazine is 1.3x10^-6. What volume of HCl needs to be added to the solution in oder to have a bffer system with the maximum capacity fo..
Calculate the molarity of a solution that has a volume of 0.25 dm3 and contains 10.6 g of AgNO3.
Briefly define why ATP is considered energy currency in all living cells. Explain the reasons in kinetic terms as well as thermodynamic terms.
Doctors sometimes spray ethyl chloride on the skin to momentarily freeze it for minor operations. Explain how this works considering that ethyl chloride is a very volatile liquid with a relatively low boiling point.
A 7.31 liter sample of a gas at 50 degrees celsius and 2.82 atm pressure is subsequently compressed to 0.546 liters. in response to being compressed, teperature increases to 72 degrees celsius. what is the pressure of the gas after compression
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