All categories

2 years ago

Find the density of an object that has a mass of 66g and a 10 cm3. HELP ASAP

2 answers:

8 0

Density = mass /volume

Density = 66g/10cm³

Density = 6.6g/cm³....

Just take note of the formula....

Hope this helped....

lukranit [14]2 years ago

5 0

Answer: $6.6\ g/cm^3$

Explanation:

The formula to calculate the density is given by :-

$\text{Density}=\dfrac{\text{Mass}}{\text{Volume}}$

We are given that the volume of an object is $10\ cm^3$

Mass of object = 66g

Now, the density of object is given by :-

$\text{Density}=\dfrac{66}{10}\\\\\Rightarrow\ \text{Density}=6.6\ g/cm^3$

Hence, the density of object = $6.6\ g/cm^3$

You might be interested in

What units would be used to measure the diameter of Earth? (site 2)

Masja [62]

We would use miles to measure the diameter of the earth because that is the greatest measure of length that is possible to measure something large.

6 0

2 years ago

A sample of magnesium oxide has a mass of 94.4 g. How many molecules

ella [17]

Answer: 1.414x10^24 molecules in 94.4g MgO

Explanation: molar mass MgO 40.204

molecules in 40.204 g MgO = avogadro number

molecules in 94.4 g MgO = (94.4/40.204)*avogadro number

(94.4/40.204)*6.02214076*10^23 = 14.14x10^23

7 0

2 years ago

Using the standard reduction potentials, Pb 2+(aq) + 2e– => Pb(s), E° = –0.13 V Fe 2+(aq) + 2e– => Fe(s), E° = –0.44 V Zn

mojhsa [17]

Answer:

Pb(s), Fe(s) and Zn(s) will reduce $Mn^{3+}$ to $Mn^{2+}$

Fe(s) and Zn(s) will reduce $Cr^{3+}$ to $Cr$

Explanation:

Standard reduction potential denotes ability to consume electrons from another species.

Hence, higher the standard reduction potential, higher will be the ability to oxidize another species.

Metal with $E_{red}^{0}$ value lower than 1.51 V will donate electron to $Mn^{3+}$ and thus reduces $Mn^{3+}$ to $Mn^{2+}$ .

So, Pb(s), Fe(s) and Zn(s) will reduce $Mn^{3+}$ to $Mn^{2+}$ .

Metal with $E_{red}^{0}$ value lower than -0.40 V will donate electron to $Cr^{3+}$ and thus reduces $Cr^{3+}$ to $Cr$ .

So, Fe(s) and Zn(s) will reduce $Cr^{3+}$ to $Cr$ .

6 0

2 years ago

The definition of the acceleration states that an object accelerates when it

maks197457 [2]

Answer: Acceleration and velocity

Explanation:

Newton's second law says that when a constant force acts on a massive body, it causes it to accelerate, i.e., to change its velocity, at a constant rate. In the simplest case, a force applied to an object at rest causes it to accelerate in the direction of the force.

5 0

1 year ago

Read 2 more answers

An element has three naturally occurring isotopes. Use the information below to calculate the weighted average atomic mass of th

Mariulka [41]

It is isotope ok!!!!!

3 0

3 years ago