Use equation density = mass/volume
Known/Given
d= 10.5g/cm^3
v= 24.0 cm^3
Use that equation i just mentioned...
Solution
Rewrite the formula as the forumla for solving density into mass
Which is... mass = 10.5g/cm^3 × 24.0cm^3 = 252g
So thats the answer
252g
Hope i could help
Answer:
4.49 mmHg
Explanation:
Formula for osmotic pressure → π = M . R . T
M → molarity
Let's determine the moles of pepsin (mass / molar mass)
0.5 g / 35000 g/mol = 1.43 mol ×10⁻⁵ moles
These moles are in 60 mL of an aqueous solution. Let's determine M (mo/L)
1.43 mol ×10⁻⁵ mol / 0.060 L = 2.38×10⁻⁴ M
Noticed we changed the volume from mL to L → 60 mL . 1L/1000mL
T → T°K = T°C + 273 → 30°C +273 = 303K
Now we can put data on the formula:
π = 2.38×10⁻⁴ mol/L . 0.082 L.atm/mol.K . 303K
π = 5.91×10⁻³ atm
Let's convert the atm to mmHg
5.91×10⁻³ atm . 760mmHg / 1atm = 4.49 mmHg
The reaction between a non-metal and metal is called an ionic bond
