All categories

3 years ago

Cl2 + 2KBr -> Br2 + 2KCl what is the reaction?

Mathematics

1 answer:

Serjik [45]3 years ago

3 0

Answer:

Step-by-step explanation:

→

Given:

300

(a) Mass of

= 300g

Molecular mass of

= 2(35.45) = 70.906 g

No.of moles of

300

70.906

4.23

moles

Mass of

300

Molar mass of

79.9

118.9

No.of moles of

300

118.9

2.52

moles

Now,

Consider the equation:

→

mole of

= 2 moles of

4.23

moles of

= 2x4.23=

8.46

moles

moles of

= 2 moles of

2.52

moles of

2.52

moles

Now convert moles to mass,

Mass of

produced by

8.46

70.906

599.8

Mass of

produced by potassium bromide =

2.52

74.5

187.74

You might be interested in

Negative 22 minus 16

Maru [420]

The answer is -38.

$-22-16=-38$

4 0

3 years ago

Read 2 more answers

What is the distance covered by a train while slowing down from

alukav5142 [94]

Answer:

The distance covered is 113.75 m

Step-by-step explanation:

As per the question:

The initial velocity of the train, v = 20 m/s

The final velocity of the train, v' = 6 m/s

Uniform deceleration, a = 1.6 $m/s^{2}$

Or uniform acceleration, a = - 1.6 $m/s^{2}$

<em>Here, the body decelerates, i.e., slows down at a uniform rate thus we take acceleration with negative sign.</em>

Now, to find the distance covered, s:

Using the eqn of Kinemetics:

$v'^{2} = v^{2} + 2as$

$6^{2} = 20^{2} + 2(- 1.6)s$

$36 - 400 = - 3.6s$

$s = \frac{- 364}{- 3.6} = 113.75\ m$

5 0

3 years ago

Tell me where to put the stuff for the graph

sergejj [24]

Answer:this one

●________>

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

You spin the spinner, flip a coin, then spin the spinner again. Find the probability of the compound event. Write your answer as

Margaret [11]

Answer:

5/162

Step-by-step explanation:

There's a 5/9 chance that you spin an odd and a 1/2 chance you get heads and a 1/9 chance you get a 3 on the spinner multiply the fractions together and get 5/162.

8 0

3 years ago

PLEASE HELP!!!!!! This season, the probability that the Yankees will win a game is 0.46 and the probability that the Yankees wil

tatuchka [14]

Answer:

Given:

Probability that the Yankees wins a game is

P(A) = 0.46

Probability that the Yankees loses a game is

P(A') = 1 - P(A') = 1 - 0.46 = 0.54

Probability that the Yankees scores 5 or more runs in a game is

P(B) = 0.59

Probability that the Yankees scores fewer than 5 runs in a game is

P(B') = 1 - P(B) = 1 - 0.59 = 0.41

Probability that the Yankees wins and scores 5 or more runs is

P(A⋂B) = 0.39

Applying the De Morgan's law, the probability that the Yankees scores fewer than 5 runs and they loses the game would satisfy:

1 - P(A'⋂B') = P(A) ⋃ P(B) = P(A) + P(B) - P(A⋂B)

1 - P(A'⋂B') = 0.46 + 0.59 - 0.39

1 - P(A'⋂B') = 0.66

=> P(A'⋂B') = 1 - 0.66 = 0.34

Applying the Bayes theorem, the probability that the Yankees would score fewer than 5 runs, given they lose the game:

P(B'|A') = P(A'⋂B')/P(A')

P(B'|A') = 0.34/0.54 = 0.630

Hope this helps!

7 0

3 years ago