Question

This contains chemistry but still has Math.

1.) Calculate the density of Mercury (Hg) if 1.00 x 10^2 g occupies a volume of 7.36 cm^3.

2.) Calculate the mass of 65.0 g of Hg.

3.) A student needs 15.0 g ethanol (ethyl alcohol) for an experiment. The density of the alcohol is 0.789 g/mL. How many mL of alcohol are needed?

Answer 1

physics actually,

Answer 2

do you know how to solve this? this is from my Chemistry subject. :)
could you teach me? :)

Answer 3

density has is of mass per volume \[\rho=\frac{m}{V}\]

Answer 4

\[m=1.00 \times 10^2 \left[\text g \right]\]\[V=7.36 \left[\text{cm}^3\right]\]

Answer 5

question 2.) is confusing , You do not need to calculate the mass of \(65.0\text g\) of Hg because it is \(65.0\text g\) .

Answer 6

chemistry chapter name is liquids...lolz

Answer 7

2. ansr
65 cm^3 x 13.6 g / cm^3 = 884 g

Answer 8

i once tried to undertand why Hg is a liquid under STP, the reason is hard to understand.

, what did you get for 1.)

Answer 9

well the units in the question were not like that for 2.)

Answer 10

I got 13.59 g/cm^3 for 1.

Answer 11

maybe the question for no. 2 is incomplete

Answer 12

bt my ansr is true for secnd

Answer 13

why did you make it 65 cm^3 although it is written in grams? @KRAZZy

Answer 14

u question is wrong ......

Answer 15

maybe I copied it wrongly

Answer 16

yeah u ask to find mass and mass is also given:D

Answer 17

My answer for 3.) is 19.01

Answer 18

mL

Answer 19

good
question two should be

2.) Calculate the mass of 65.0 cm^3 of Hg.

Answer 20

yes this is right @UnkleRhaukus

Answer 21

yes @moongazer 19.0 is ryt ansr