All categories

2 years ago

The expression for 11 million km in scientific notation is

Chemistry

1 answer:

kakasveta [241]2 years ago

6 0

1.1 * 10^7 km

I think.

You might be interested in

Enough of a monoprotic weak acid is dissolved in water to produce a 0.0144 0.0144 M solution. The pH of the resulting solution i

alexdok [17]

Answer:

The value of dissociation constant of the monoprotic acid is $1.099\times 10^{-3}$ .

Explanation:

The pH of the solution = 2.46

$pH=-\log[H^+]$

$2.46=-\log[H^+]$

$[H^+]=0.003467 M$

$HA\rightleftharpoons H^++A^-$

Initially

0.0144 0 0

At equilibrium

(0.0144-x) x x

The expression if an dissociation constant is given by :

$K_a=\frac{[A^-][H^+]}{[HA]}$

$K_a=\frac{x\times x}{(0.0144-x)}$

$x=[H^+]=0.003467 M$

$K_a=\frac{0.003467 \times 0.003467 }{(0.0144-0.003467 )}$

$K_a=1.099\times 10^{-3}$

The value of dissociation constant of the monoprotic acid is $1.099\times 10^{-3}$ .

3 0

2 years ago

What are the components of an electromagnet and how do they get connected?

Dmitriy789 [7]

Well I'm sure many a time you've seen on some science experiment someone wrap a copper wire around a nail well thats generally the idea for electromagnets you get a solid piece of iron which is the only metal that is magnetic and you wrap a copper wire around it and the idea is to make two opposing magnetic poles by aligning the molecules with a electrical charge (a battery) so now with all three pieces assembles you have a copper wire attached to two sides of a battery and wrapped around a nail

6 0

2 years ago

Read 2 more answers

What is SO2 shape name?

muminat

Answer:Molecular Formula SO2

Hybridization Type sp2

Bond Angle 119o

Geometry V-Shaped or Bent

Explanation:

hope this helped <3

5 0

2 years ago

The _______ elements tend to lose electrons and form positive ions, while the _______ elements tend to gain electrons and form n

Jet001 [13]

Actions form positive ions while anions forms negative

7 0

2 years ago

Read 2 more answers

Scientific research has found many negative effects of common household materials. Which of the following elements was once used

Volgvan

Lead.

Lead paint was a big problem and now lead has been removed from paint because it was found to be dangerous to the health of living organisms.

Hope this helps! :)

4 0

2 years ago