Consider a container of 2.0 g of hydrogen, H2 (one mole). Suppose you removed all the electrons and moved them to the other side of the earth
(Earth's radius is 6380 km, k = 1/40 = 9.0 109 N m2/C2, NA = 6.022 1023 molecules/mol, e = 1.60 10-19 C)
(a) How much charge is left behind after you remove the electrons?
(b) What electric force do the protons exert on the electrons after they are separated as described?
Question 2
An object that is 4.00 cm tall is placed 18.0 cm in front of a concave mirror having a focal length of 20.0 cm. What is the location of its image in relation to the mirror and what are its characteristics?
A) 20 cm on the same side of mirror, real, 10.0 times bigger
B) 180 cm on the other side of mirror, real, 6.00 times bigger
C) 18 cm on the same side of mirror, virtual, 2.25 times bigger
D) 10 cm on the other side of mirror, virtual, 10.0 times bigger
E) 180 cm on the other side of mirror, virtual, 10.0 times bigger
A naked mole rat colony.
Polycystic kidney disease. Notice the presence of numerous fluid-filled sacs, or cysts, in these kid
pH vs. moles base added per mole acid
Hydrogen bond
If 250. L of nitrogen reacts with 582 L of hydrogen by the reaction: N2(g) + 3 H2(g) 2 NH3(g), ...