Need help with uncertainty. I am making a 1% sucrose solution in a 250 mL volumetric flask. First I measured out 2.5 g of sucrose on an electric balance which has an uncertainty of ± .1g. Then I put the measured out sucrose into the volumetric flask, which has an uncertainty of ± .1 mL, and filled the flask with distilled water. What would the uncertainty of the solution?

Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.

How hot is the suns corona? (integrated science)

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied