What would be the volume of h2 gas
0.300 L of H2 gas collected over water at27oC on a day when the atmospheric pressure was 745torr. What would be the volume of H2 gas at 760 torr after the water vapor was removed? (P H2O = 27 torr at27oC)
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You are given 2 burettes: one with 0.10 M acetic acid, one with0.15 M sodium acetate. How much of each would you mix together to produce a total of 20.0 mL of solution with a pH of4.70? (You may not add any water).
A set of 50 data values has a mean of 16 and a variance of 4. Find the standard score (z) for a data value = 12. Find the probability of a data value > 12.
What happens if concave lens is filled with water ,assuming the refractive index for lens is 1.6 and Dioptre = 5 per metre and a planer-concave lens.? a) Is it possible to create a net postive lens system?
Determine the specific work and heat transfer associated with the process (kJ/kg). Determine the change in specific entropy of the system (kJ/kg-K)
Three 4.0-uF capacitors are connected in parallel across the terminals of a 60.0-Hz generator. What is the capacitive reactance of the circuit?
A horizontal spring is lying on a frictionless surface. One end of the spring is attached to a wall whle the other end is connected to a movable object.
Find the standard normal curve area that lies:
Write a correct null and alternative hypothesis for testing the claim that the mean life of a battery for a cell phone is at least 85 hours.
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The woman has a history of congestive heart failure with decreased kidney function within the last year. The woman appears unusually tired and slightly pale.
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