What mass of solute must be used to prepare 500ml of 0.100m aqueous sodium borate na2b4o7 from solid hydrated sodium borate na2b4o7.10h2o?

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Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: