What is the volume of 90.0 grams of ether if the density of ether is 0.70 g/ml?
a)1.1 x 10^2 ml
b)1.3 x 10^2 ml
c)6.3 x 10^1 ml
d)7.8 x 10^-3 ml

b) 1.3 E2 mL

Explanation:

∴ m = 90.0 g

∴ density = 0.70 g/mL

⇒ V = m / d

⇒ V = 90.0g / 0.70 g/mL

⇒ V = 128.571 mL

⇒ V = 1.285 E2 mL ≅ 1,3 E2 mL

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.