How many moles of a gas sample are in a 10.0 L container at 298 K and 203 kPa? Use the ideal gas law PV = nRT with R = 8.31 L-kPa/mol-K.

A. 1.22 moles
B. 0.60 moles
C. 1.66 moles
D. 0.82 moles

Identify the electromagnets with poles that are reversed from the electromagnet shown above

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?

What type of interaction occurs between the r groups of valine and isoleucine in a tertiary structure? view available hint(s) what type of interaction occurs between the r groups of valine and isoleucine in a tertiary structure? salt bridge disulfide bridge hydrogen bond hydrophobic interaction