In the essay by Professors D. Acemoglu and J. Robinson entit…

In the essay by Professors D. Acemoglu and J. Robinson entitled, “So Close and Yet so Different: The Economics of the Rio Grande” they point out that a prime reason for the drastically different standards of living across the USA and Mexico border arises from:

A student performs the lab on an unknown metal and obtains t…

A student performs the lab on an unknown metal and obtains the following data: Measurement Result Mass of metal (g) 0.0285 g Temperature of laboratory (°C) 21°C Volume of H2 gas produced (mL) 26.5 mL Gas Constant R 0.08206 (L atm)/(mol K) Pressure in Laboratory (atm) P 0.975 atm Using this data, complete the following calculations:   Molar ratio of H:M assuming a 1:1 ratio of M to H2. We will assume a 1:1 molar ratio for this experiment. Moles of metal used: ________________  

A student performs the lab on an unknown metal and obtains t…

A student performs the lab on an unknown metal and obtains the following data: Measurement Result Mass of metal (g) 0.0285 g Temperature of laboratory (°C) 21°C Volume of H2 gas produced (mL) 26.5 mL Gas Constant R 0.08206 (L atm)/(mol K) Pressure in Laboratory (atm) P 0.975 atm Using this data, complete the following calculations:   Molar ratio of H:M assuming a 1:1 ratio of M to H2. We will assume a 1:1 molar ratio for this experiment. Atomic mass of metal = ________________

A 72-year-old patient with mild osteoarthritis in both knees…

A 72-year-old patient with mild osteoarthritis in both knees presents to physical therapy with complaints of knee pain and instability while walking. The patient has good upper body strength and balance. Which assistive device would be MOST appropriate for this patient to improve stability and decrease knee pain during ambulation?