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a sample of HCI is placed in a 256ml flask where it exerts a force of 67.5 mmHg. What is the pressure of the gas if it is transfered to a 135mL flask?
A sample containing 4.80 g O2 of gas has a volume of 15.0 L. Pressure and temperature remain constant. What is the new voume if 0.500 mole O2 gas is added.
In a solution of acetone and ethanol, the mole fraction of acetone is 0.40. What is the concentration of acetone as a mass percent?
Given chemical reaction is used to produce electricity in lead storage battery that used in automobiles generally.
A small organic molecule required by an enzyme in order for the enzyme to be a functional catalyst is known as a vitamin. Lipids that are solids at room temperature tend to have more double bonds than liquids at room temperature
Determine what was the % of excess air used? If The reactant entered at 93 degrees Celsius and
Consider a piece of gold jewelry that weighs 9.78 g and has a volume of 0.680 cm3. The jewelry contains only gold and silver, which have densities of 19.3 g/cm3 and 10.5 g/cm3, respectively.
Phosphorus-32 has a half-life of 14.0 days. Starting with 8.00 g of 32 P, how many grams will remain after 98.0 days?
A.117 gram sample of a metal reacts with hyrdochloric acid to produce 36.3 ml of dry hydrogen gas, measured at STP. what is the equivalent weight of this metal?
Calculate the pressure that must be applied in order to increase its density by 0.08 percent.
If a raindrop weighs 57 mg on average and 5.1 X 10^5 raindrops fall on a lawn every minute, what mass of rain falls (in kg) on the lawn in 1.5 hours?
Sorbic acid, C5H7COOH, is a weak monoprotic acid with Ka = 1.7 x 10-5. Calculate the pH of a solution containing 11.25 g of potassium sorbate in 1.75 L of solution.
Identify what complementary functional group would need to be present in the neuraminidase active site for (a) hydrogen bonding and (b) ioic interactions to oseltamivir to be observed?
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