The Helmholtz function of a substance has the form a 5 2RT

Chemistry 11
A mixture of NaBr and \(\mathrm{Na}_{2} \mathrm{SO}_{4}\) contains 29.96 percent Na by mass. Calculate the percent by mass of each compound in the mixture.

Chemistry 12
Write Lewis structures for BrF3, ClF5, and IF7. Identify those in which the octet rule is not obeyed.

Anatomy & Physiology 1
The location of a muscles insertion and origin can determine ________. a. action b. the force of contraction c. muscle name d. the load a muscle can carry

Krugman's Economics for AP* 2
At right is a simplified circular-flow diagram for the economy of Micronia. a. What is the value of GDP in Micronia? b.What is the value of net exports? c. What is the value of disposable income? d.Does the total flow of money out of householdsthe sum of taxes paid and consumer spendingequal the tota

Biology: The Dynamic Science 5
What is a stem cell? What does potency mean in respect to a stem cell?

Chemistry for today : general, organic, and biochemistry 9
Write a formula for the conjugate base formed when each of the following behaves as a Brnsted acid: a. \(\mathrm{HSO}_{4}^{-}\) b. \(\mathrm{CH}_{3} \mathrm{NH}_{3}{ }^{+}\) c. \(\mathrm{HClO}_{4}\) d. \(\mathrm{NH}_{4}{ }^{+}\) e. HCl

Biochemistry 9
The fidelity of protein synthesis is assured twice during protein synthesis. How and when?

Physical Science 11
How is work related to energy?