How many moles of oxygen are consumed when 1.356 moles of carbon dioxide are produced in the combustion of ethanol? How many grams of O2 are required to completely burn 3.4 grams of C2H5OH? Ethanol, C_2H_6O, is added to gasoline ...
moles of water in one drop = 0.002775 moles Using Avogrado's Number Finally, useAvogadro's numberto determine the number of molecules in a drop of water. Avogadro's number tells us there are 6.022 x 1023molecules of water per mole of water. So, next we calculate how many molecules there...
If you dissolve 3.5 moles of CaCl_2 in a solution, how many moles of C^{+2} ions and C^- ions will there be in the solution? How many moles of aqueous potassium ions and sulfate ions are formed when 41.6 g of K_2SO_4 dissolves in water? In water,...
If N2 is bubbled through water at 293 K, how many milli moles of N2 gas would dissolve in 1 litre of water. Assume that N2 exerts a partial pressure of 0.987
If one kilometer is equal to 0.6 miles, how many kilometers would you have traveled if you have traveled 42 miles? Answer and Explanation: Learn more about this topic: Arithmetic with Decimal Numbers from Chapter 3/ Lesson 3 54K Depending upon the oper...
How many moles of ethanol are in 25.0 mL of a 1.50 M solution? Calculate the concentration of the given solution in mass percent. 9.45 g C2H6O in 74.1 g H2O What is the mole fraction of ethyl alcohol (C2H6O, density = 0.79 g/mL) in water for a solution ma...
Example: What is the molality of a solution of 3 grams of KCl (potassium chloride) in 250 ml of water? First, determine how many moles are present in 3 grams of KCl. Start by looking up the number of grams per mole of potassium and chlorine on aperiodic table. Then add them together...
C(H^(+))=10^(-pH) mol L^(-1) = 10^(-13)(mol)/(L) (pH= 13) =10^(-16)(mol)/(mL)(1 L = 1000 mL) i.e., 10^(-16) mol H^(+) ions are present in every milliliter of aolution. Thus, the number of H^(+) ions present in 1 mL. =(("Moles of " H^(+))/...
Finally, you can convert from moles to millimoles. There are 1,000 millimoles in 1 mole: (0.00645 mol NaOH/1 L)x(1000 mmol/1 mol) = 6.48 mM NaOH. A one liter solution that contains 259 milligrams of NaOH is thus a 6.48 mM solution....
Is 7 a good cholesterol level?The number 7 for a cholesterol level would not be a measurement in mg/dL, used in the U.S., but it may be in a measurement used in other countries. Canada, for example, uses millimoles per liter, or mmol/L, for cholesterol tests. 7 mmol/L is a ...