Question

50 Points Help

Answer 1

1. Find mass of 250.0 ml of benzene : -

given data :

• density = 0.8765 g/ml

• volume = 250 ml

we know the relation between mass, volume and density

that is

$\boxed{ \boxed{density = \dfrac{mass}{volume} }}$

• $0.8765 = \dfrac{m}{250}$

• $m = 250 \times 0.8765$

• $m = 219.125 \: \: grams$

• $\approx219.12 \: g$

7. Find volume of silver metal :

given data :

• mass = 2500.0 g

• density = 10.5 g/ cm³

Since we already know the relation, let's solve form volume :

• $10.5 = \dfrac{2500}{v}$

• $v = \dfrac{2500}{10.5}$

• $v = 238.095 \: \: cm {}^{3}$

• $\approx238.1 \: \: cm {}^{3}$

Answer 2

• Volume=250mL
• Density=0.8765g/mL

$\\ \sf\longmapsto Density=\dfrac{Mass}{Volume}$

$\\ \sf\longmapsto Mass=Density\times volume$

$\\ \sf\longmapsto Mass=250(0.8765)$

$\\ \sf\longmapsto Mass=219.12g$

#2

• Mass=2500g
• Density=10.5g/cm^3

$\\ \sf\longmapsto Density=\dfrac{Mass}{Volume}$

$\\ \sf\longmapsto Volume=\dfrac{Mass}{Density}$

$\\ \sf\longmapsto Volume=\dfrac{2500}{10.5}$

$\\ \sf\longmapsto Volume=238.09cm^3$