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Normal fasting levels of blood glucose in human are around 800mg/L. What is the molarity of glucose in the bloodstreem
15.0 mL of 0.50 M HCl is added to a 100.-mL sample of 0.496 M HNO2 (Ka for HNO2 = 4.0 × 10-4). What is the equilibrium concentration of NO2- ions?
The thermocouple is then placed in boiling toluene at the same pressure and provides an output of 12.59 mA.
Does the product xyz necessarily vanish when integrated over a a) cube, b) tetrahedron, c) hexagonal prism, each centered on origin?
A buffer solution was prepared by mixing 25.0 ml of 0.5M sodium acetate with 35.0ml of 0.6M acetic acid. Calculate the pH. The Ka for acetic acid is 1.7x 10^-5
Water has a considerably higher boiling point and lower vapor pressure than other molecules of similar or larger molar mass. For example, dinitrogen (N2), methane (CH4), etc.
If 19.4 grams of an aqueous solution of sodium bromide, NaBr, contains 1.69 grams of sodium bromide, what is the percentage by mass of sodium bromide in the solution
The concentration of K+ in blood plasma is about 0.0050 M. The high internal concentration in cells is maintained by pumping K+ from the plasma. How much work must be done to transport 1.0 mol K+ from the blood to the inside of a muscle cell at 37..
Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring 12.0 ft×15.0 ft×8.50ft.
The temperature of 1.5 kg of ethanol is 37°C. What will the final temperature be if 80,000 J of energy as heat is added to the ethanol.
How many grams of N2 are required to react with 2.30 moles of Mg in the following process?
Boron is to be converted into N-type by Phosphorous dopant, so that the resistivity at T = 100 C is 1.2 ohm-cm. all atom are fully ionized. calculate the doping density of Phosphorous and the resistivity of the sample at room temperature
In the laboratory you dissolve 16.7 g of barium chloride in a volumetric flask and add water to a total volume of 125 mL. What is the molarity of the solution
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