A 47.9 +/- 0.5 ml solution of unknown concentration of HNO3 is titrated with a 0.100 +/- 0.005 standard solution of Sr(OH)2. If 13.3 ml of Sr(OH)2 is added to reach the equivalence point, what is the concentration of HNO3 in the unknown? Show all work and sig figs do matter. Need a lot of help with this one^^ it's been driving me crazy

According to the tide table below what time of day will the highest tide occur?

4. absorption has the highest risk of overdose due to increased potency. a. rectal b. oral c. transdermal d. intranasal

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.