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A piece of metal with a mass of 2.00 x 1033 g needs 5.02 x 10 J of heat for its temperature to elevate from 20.0 °C to 40.0 °C. What is the specific heat capacity of this unknown metal in J/kg·°C? (Note the kg as opposed to g in this unit)
Describe in detail the duration coupling in a skeletal muscle cell and describe on a molecular basis the resulting events leading up to
Explain how many moles of water are made from entire reaction of 2.2 moles of oxygen gas with hydrogen gas. Given the reaction: 2H2 + O2 --> 2H2O
How many mL Hydrochloric acid of 0.1 M must be added to 100 mL of a 0.2 M solution of tris base to form a buffer ( pH 7.8)?
0.9 moles of an ideal gas with cv 3r2 initially confined to a container of volume 6 litre and at a temperature 42 c
Calculate kp given that the initial pressures of nitrogen are 95 atm and 80 atm, respectively, and the equilibrium pressure of nitrogen oxide is 6.0 atm. I know the answer is 5.1x10^-3. I am trying to find how is that number possible.
What will the pH of the solution be when 0.1316 L of 2.1 M NaOH are added to the 421 mL of 0.501 M carbonic acid? How many mL of the 2.1 M NaOH are needed to raise the pH of the carbonic acid solution to a pH of 6.019?
Problem- If 28.62mL of 0.1085 M NaOH are required to titrate 24.98 mL of a monoprotic acid HA to the equivalence point, calculate the original molar concentration of HA before the titration.
Calculate the change in pH to 0.01 pH units caused by adding 10. mL of 2.72-M NaOH is added to 490. mL of each of the following solutions. a) water pH before mixing
50.0000 g of a compound showed that it contained 12.7520 g C,3.2105 g H, and 34.037 g S. The molecular weight of this compound was determined in a seperate expierment and found to be 94.19u.
calculate w and ?u when 1 mole of xenon gas assumed ideal under goes adiabatic expansion from 27?c to 127? assumingheat
How much heat in kilojoules is evolved or absorbed in the reaction of 244.0g of calcium oxide with enough carbon to produce calcium carbide?
Explain what is the concentration of ammonia in the solution if 24.50 mL of a 0.1160M solution of HCl are required to titrate a 100.0 mL of the solution
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