Asample of helium occupies 0.56 l at 988 mmhg and 25 degrees celsius at the sample is transferred to a 1.0 l flask at the same temperature what will the gas pressure be in the new flask

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.