3 years ago

How many joules of energy are made by the loss of 100kg of mass using the formula E=mc2? please help!!!

Chemistry

1 answer:

asambeis [7]3 years ago

6 0

Answer:

E = 3 × 10¹⁰ J

Explanation:

Mass, m = 100 kg

We need to find energy made by the loss of 100 kg of mass. The formula between the mass and energy is given by :

E = mc²

Where c is speed of light

Putting all the values, we get :

E = 100 kg × (3×10⁸ m/s)²

= 3 × 10¹⁰ J

So, the required energy is 3 × 10¹⁰ J.

You might be interested in

Which of the following can you physically change for a pure substance such as water, without altering the chemical composition?

ZanzabumX [31]

Color most likely.

Step by step explanation:

4 0

3 years ago

Calculate the mass of CO2 produced from the complete combustion of 1.00g of C2H2.

sergeinik [125]

I don't know the answer

3 0

3 years ago

Question14 of 20If 5.15 g FeCl3 is dissolved in enough water to make exactly 150.0 mL of solution, what is the molar concentrati

Serhud [2]

Answer: 0.635 M

Explanation:

Molarity : It is defined as the number of moles of solute present per liter of the solution.

Formula used :

$Molarity=\frac{n\times 1000}{V_s}$

where,

n= Moles= $\frac{\text{Given mass}}{\text{Molar mass}}=\frac{5.15g}{162.4g/mol}=0.0317moles$

$V_s$ = volume of solution = 150 ml

$Molarity=\frac{0.0317\times 1000}{150ml}=0.2114M$

$FeCl_3\rightarrow Fe^{3+}+3Cl^-$

as 1 mole of $FeCl_3$ gives 3 moles of $Cl^-$ ions

Thus molarity of $Cl^-$ = $3\times 0.2114=0.635M$

Molarity of $Cl^-$ = 0.635 M

8 0

3 years ago

What color do you get when you mix icing sugar plus universal indicator?

const2013 [10]

You would get green icing sugar.

Icing sugar is finely-ground sugar, and sugar is a neutral compound.

Universal indicator is green at pH 7 (neutral).

3 0

3 years ago

THREE plant-like organisms which cannot produce their own food are:!HELP ME ASAP PLZZZZZ!

Anna [14]

I think mold and mushrooms canoot produce their own food because they are fungi and fungi depends on external food resources

3 0

3 years ago

Read 2 more answers