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If i want to make 400.00 mL of a 0.325 M KNO3 solution, and I have a 0.840 M stock solution on hand, how much of the stock solution will I need to dilute
Calculate the molarity of 464 mL of a solution that contains 135 g of sucrose C12H22O11
A nonelectrolyte solution adsorbs on an electrically neutral solid through a liquid. Two surfaces of this type are brought close to one another in the liquid such that they interact.
After adding 0.25 mL of 0.50 M NaOH, the pH of the same solution changed to 8.05. Calculate the buffer capacity (? mmol OH-/? pH) of this solution to two decimal places.
how can you tell when the hydrolysis of starch is complete? Why does the test work this way? What is the monosaccharide that results at the end?
Butane has a heat of vaporization of 22.44 kj/mol and a normal boiling point of -0.4 C. A 250 ml sealed flask contains 0.6 g of butane at - 22C. How much butane is present as a liquid
A student adds 6.60 of a 0.380 solution to the beaker. How much will the pH change? The of acetic acid is 4.760.
sample of HCl solution reacts with excess Mg to produce 4.20 L of H2 gas at 745 mmHg pressure and 35.0 degrees C. What is the molartiy of the HCl solution?
A system absorbs 192 kj of heat and the surroundings do 110 kj of work on the system. what is the change in internal energy of the system.
Calculate the pH at the equivalence point in titrating 0.100M solutions of each of the following with 8.0×10-2 M NaOH.
Determine the new temperature and express your answer in degrees celsius,?
A cube of a gold with a volume of 59 cm3 has a mass of 980 g. The density of pure gold is 19.3 g/cm3. What is the percent error of the measured density?
Assuming the heat absorbed by the styrofoam is negligible, calculate the expected final temperature. The specific heat of water is 4.184 J g-1 K-1.
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