Calculate the mass of lead nitrate
Sodium nitrate was added to 2.0 L of water at 25 °C to produce a saturated solution. The solution was then heated to 80 °C. Calculate the mass of lead nitrate that had to be added to produce a saturated solution at that higher temperature.
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A rocket launched vertically upward is being monitored by a radar located at a distance 1.2 km from the launch pad. Compute the velocity and acceleration vector at this position.
A piggy bank contains one penny, one nickel, one dime, and one quarter. It is shaken until two coins fall out at random. What is the probability that at least $0.30 fall out?
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