kymcar97
kymcar97
14-09-2016
Chemistry
contestada
How many atoms are in 121 g of calcium?
Respuesta :
Willchemistry
Willchemistry
14-09-2016
Atomic mass Ca = 40.078 u.m.a
40.078 g --------------- 6.02x10²³ atoms
121 g ------------------- ??
121 x ( 6.02x10²³) / 40.078 =
7.28x10²⁵ / 40.078 =
1.81x10²⁴ atoms
Answer Link
VER TODAS LAS RESPUESTAS ( 48+ )
Otras preguntas
Which factor most determines the role of the United States in the global economy? a. The United States has the largest national gross domestic product in the Wo
how did the Dutch leaders attract more colonists to New Netherland?
Plants respond to stimuli such as light and gravity. These responses are chiefly due to: A. the transmission of nerve impulses B. the distribution of auxins C.
Mood is established by _____. plot landscape or setting setting and plot
why were American eager for new goods and services
Which sentence is punctuated correctly? “Yes,” the lady said, I would love to dance with you. “Yes” the lady said “I would love to dance with you.” “Yes,” the l
What is the root of the word pressure
True or False, The radioactive wastes produced by nuclear fission remains dangerous for dozens of years.
The Treaty of Paris gave __________ to the United States. A. state constitutions B. a unicameral legislature C. the Northwest Territory D. the Articles of Confe
If You Have 1 Kilogram,Then How Much Is It In Ounces?
