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You make a 100 mL solution by dissolving 5g of a solid solute in water. The molar mass of the solute is 110 g/mol.
What is the molarity of the solution?
If the density of the solution above is 1 g/mL, what is the concentration using units of percent by mass? (Percent by mass = g solute / g solution * 100)
What is the difference between these two concentrations units? ?Why would you use one rather than the other?
Suppose a blimp holds 175,000ft3 of Helium. Suppose the gas is at 23 degree Celsius and 1.0atm, define what mass of Helium is in a blimp
it is given ab2 a 2b- a 0.07 m b- 0.09 m and pk 6.75 standard enthalpies of formation acetic and ab2 - 25.65 kcal
sing two 2-bit comparator modules and some extra gates, design a 5-bit comparator comparing X = (X4X3X2X1X0) and Y = (y4y3y2y1y0). Show your design by drawing the logic diagram containing all three outputs, f(X>Y), f(X = Y), and f(X
At what Kelvin temperature will the reaction proceed 3.50 times faster than it did at 351 K?
if 9.0L of NO are reacted with excess O2 at STP, what is the volume in liters of the NO2 produced?
A particular balloon can be stretched to a maximum surface area of 1257 cm2. The balloon is filled with 3.2L of helium gas at a pressure of 763 torr and a temperature of 291K. The balloon is then allowed to rise in the atmosphere
What are the principal features of Oligopoly? How does it come about?
Calculate the molar solubility of silver carbonate in a solution that already contains 2.2 x 10-3 M silver nitrate, AgNO3. Ksp=8.85 x 10^-12.
A solution is to be standardized by titration KMnO4 against As2O3 .A 0.1022 g sample of As2O3 requires 23.40 ml of the KMnO4 for its titration.
At 46°C a sample of ammonia gas exerts a pressure of 5.3 atm. Explain what is the pressure when the volume of the gas is decrease to one-fifth (0.2) of the original value at the same temperature
Suppose that 0.330 mol of methane, CH4(g), is reacted with 0.480 mol of fluorine, F2(g), forming CF4(g) and HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released? Express your answer numerically ..
If the activation energy of an uncatalyzed reaction is 95 kJ/mol. The addition of a catalyst lowers the activation energy to 55 kJ/mol.
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