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By Solving this problem student is able to understand how to carry over dffierent types of mole conversion.
Aspartame is an artificial sweetner that is 160 times sweeter than sucrose (table sugar) when dissolved in water. It is marketed as Nutra-Sweet. The molecular formula for aspartame is C14H18N2O5. a. Calculate the molar mass of aspartame. b. How many moles of molecules are in 10.0g of aspartame? c. What is the mass in grams of 1.56 mol of aspartame? d. How many moles of molecules are in 5mg of aspartame? e. How many atoms of nitrogen are in 1.2 g of aspartame? f. What is the mass in grams of 1.0 x 109 molecules of aspartame? g. What is the mass in grams of one molecule of aspartame?
How much heat is absorbed or released in the reaction of 20.0 g of NH3 with sufficient oxygen to produce NO(g) and H2O(l)? 4 NH3(g) + 5 O2(g) g? 4 NO(g) + 6 H2O(l) ?H = -1168 kJ A
A buffer containing 0.4316M of acid, HA, and 0.1549M of its conjugate base, A- has a pH of 2.20. What is the pH after 0.0019 mol NaOH
What is the relationship among intracellular fluids, 0.9% (W/V) NaCl and 5.0% (W/V) glucose?
Consider the titration of 30.0 mL of 0.048 M NH3 with 0.025 M HCl. Calculate the ph after the following volumes of titrant have been added.
When you analyze the proteins by electrophoresis, you find that protein B moves further towards the positive end of the gel. Explain if this result is consistent with your hypothesis about the difference between the two proteins.
How many grams of formic acid, HCOOH, must be added to 0.160 L of 0.150 M sodium formate, HCOONa, to yield a buffer solution with a pH of 4.30? Assume no volume change. Ka of HCOOH = 5.0 10-4.
chemical kinetics - predict the rate law of a reaction based on the mechanism of the reaction.the mechanism of a
Instant cold packs used to treat athletic injuries contain solid NH4NO3 and a pouch of water. When the pack is squeezed, the pouch breaks and the solid dissolves
gram sample of a gaseous hydrocarbon has a volume of 820 ml when measured at 227 degrees Celcius and 2.50 atm.
The decomposition of hydrogen peroxid is second order in H2O2. If 50 grams of 30% hydrogen peroxide is placed in a beaker within a sealed environment, what will be the concentration of hydrogen peroxide
What Volume of .0200 M KMNO4 is required to titrate a solution containing
15.0 grams of an unknown sugar was dissolved in water and the final volume of the solution was brought up to 1.00 L. The osmotic pressure of this solution was determined to be 2.44 atm at 25°C. Which of the sugars below was most likely the unknown..
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