Explain why we held our samples at room temperature
1. In Benedict's test why did we allow the samples to sit for 10 minutes before running our testing?
2. Explain why we held our samples at room temperature for the duration of the experiment rather than at the body temperature.
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How can calculate the empirical formula of X when 5.00 g of X is titrated with NaOH, it is found that X has two acetic hydrogen and that 54.9 mL of 1.00 M NaOH is needed to completely neutralize it. Calculate the molecular formula of X?
The temperature of both solutions before mixing was 22.50 C, and it rises to 24.28 C after the acid-base reaction. Determine the enthalpy change for the reaction per mole of CsOH?
Determine the heat evolved when the 75.0 mL of a 2.00 HCl solution reacts with a 37.5 mL of a 4.00 NaOH solution if the temperature rises from 20.0 C to 37.9 C. (Remember you are determining this by an indirect measurement of heat absorbed by the
Two science students set out to prove the Law of Conservation of Mass. they calculate that the mass of all the products in a chemical reaction will be equal to the mass of all the reactants.
Explain why we held our samples at room temperature for the duration of the experiment rather than at the body temperature.
Determine the electron configuration of the phosphide ion (P3-) is Determine the numbers of unpaired electrons are there in the Lewis structures of a N3- ion?
Calculate by what factor the rate of reaction will increase when the concentration of A is doubled and the concentration of B is also doubled? The reaction, A+2B--> products, was found to have the rate law, Rate = k[A][B]2
Determine the numbers of times greater is the rate constant for this reaction at 520 deg. C then at 500 deg. C? R=8.31 J/mol*K. The activation energy for the reaction 2HI---} H2 + I2 is184 kj/mol.
What is the molarity of silver ion in the original solution if 23.6 mL of silver nitrate solution reacts with excess the potassium chloride solution to yield 0.877 g of precipitate.
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