The atomic size / radius generally increases, as when we move down the group, it means that there is an additional shell compared to the last element. For example, K has one more electron shell than Na does, so the atomic size generally increases as we move down a group in the periodic table.
Answer:
Three states of matter is liquid, solid and gas.
I haven't learned atoms, I just learned the states in 5th grade.
Answer:
3.6124 m/kg
Explanation:
Molality is calculated as moles of solute (mol) divided by kilogram of solvent (kg). Here, we can find these numbers by using the 35.4%, which gives us 35.4 g of H3PO4 and 100 g of solution to work with.
To go from grams to moles for the phosphoric acid, you need to find the molar mass of the compound or element and divide the grams of the compound or element by that molar mass.
Here, the molar mass for phosphoric acid is 97.9952 g/mol. The equation would look like this:
35.4 g x 1 mol / 97.9952 g = 0.3612422 mol
Next, the 100 g of solvent can easily be converted to 0.1 kg of solvent.
To find the molality, divide the moles of solute and kilograms of solution.
0.3612422 mol / 0.1 kg = 3.6124 m/kg
Answer:
Sustancia Masa (g) Composición (% m/m)
<em>Proteínas</em> 5,5 4,4
<em>Azúcares</em> 5,0 4,0
<em>Sodio </em>0,06 0,048
<em>Potasio </em>0,15 0,12
Explanation:
Para calcular la composición porcentual en masa de las sustancias debemos usar la siguiente ecuación:
En donde:
es la masa de la sustancia
es la masa del yogurt = 125 g
Para las proteínas:
Para los azúcares:
Para el sodio:
Para el potasio:
Espero que te sea de utilidad!
