Answer:
a. 408g de NH3 son necesarios
b. 2.42x10²³ moléculas de agua se obtienen
Explanation:
a. Basados en la reacción, 2 moles de NH3 producen una mol de (NH2)2CO. Para resolver esta pregunta debemos convertir la masa de (NH2)2CO a moles. Estas moles a moles de NH3 y su respectiva masa:
<em>Moles (NH2)2CO -Masa molar: 60.06g/mol-</em>
720g * (1mol / 60.06g) = 11.99 moles (NH2)2CO
<em>Moles NH3: </em>
11.99 moles (NH2)2CO * (2mol NH3 / 1mol (NH2)2CO) = 23.98 moles NH3
<em>Masa NH3 -17.031g/mol-:</em>
23.98 moles NH3 * (17.031g / mol) = 408g de NH3 son necesarios
b. 1mol de CO2 produce 1mol de agua. Se debe convertir el volumen a moles usando PV = nRT. Estas moles = Moles de agua. 1mol = 6.022x10²³ moléculas:
Asumiendo STP:
PV = nRT; PV / RT = n
Donde P = 1atm a STP
V = 9L
R = 0.082atmL/molK
T = 273.15K a STP
1atm*9L / 0.082atmL/molK*273.15K = n
n = 0.402 moles CO2 = Moles H2O
<em>Moléculas:</em>
0.402 moles agua * (6.022x10²³ moléculas / 1mol) =
<h3>2.42x10²³ moléculas de agua se obtienen</h3>
I believe it remains the same? Not so sure though
Answer:
Option A) Na
Explanation:
From the options given above, sodium (Na) is most likely to lose electron to form ion
Na is a group 1 metal. Metals form ions by losing electron(s).
From the options given above, only Na is a metal and so it is most likely to form ion by losing electron
B. a flashlight a basketball and a softball. the flash light would give off the light from the sun and the softball will block out some of the light in front of a basketball
