All categories

3 years ago

Can someone plz help me with this plz?????

Chemistry

1 answer:

Otrada [13]3 years ago

4 0

Answer:

We can't see the options so we don't know what we can put

Explanation:

You might be interested in

A reaction generates hydrogen gas (H) as a product. The re-

Amiraneli [1.4K]

<u>Answer:</u> The average rate of the reaction is $7.82\times 10^{-3}M/min$

<u>Explanation:</u>

To calculate the molarity of hydrogen gas generated, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}$

Moles of hydrogen gas = $3.91\times 10^{-2}mol$

Volume of solution = 250 mL = 0.250 L (Conversion factor: 1 L = 1000 mL)

Putting values in above equation, we get:

$\text{Molarity of }H_2=\frac{3.91\times 10^{-2}mol}{0.250L}=0.1564M$

Average rate of the reaction is defined as the ratio of concentration of hydrogen generated to the time taken.

To calculate the average rate of the reaction, we use the equation:

$\text{Average rate of the reaction}=\frac{\text{Concentration of hydrogen generated}}{\text{Time taken}}$

We are given:

Concentration of hydrogen generated = 0.1564 M

Time taken = 20.0 minutes

Putting values in above equation, we get:

$\text{Average rate of the reaction}=\frac{0.1564M}{20.0min}\\\\\text{Average rate of the reaction}=7.82\times 10^{-3}M/min$

Hence, the average rate of the reaction is $7.82\times 10^{-3}M/min$

6 0

3 years ago

A formal accusation of a crime issued by a grand jury

shusha [124]

I’m pretty sure it’s indictment

4 0

3 years ago

Plz help me well mark brainliest if you are correct!

lara [203]

Answer:

c: heat and erosine

Explanation:

5 0

3 years ago

A stream leaving a mountain range deposits a large part of its load in a(n): alluvial fan sandbar meander sand dune

pshichka [43]

the answer to you question is alluvial fan

3 0

3 years ago

Read 2 more answers

Question 5 of 10

OverLord2011 [107]

Answer:

4.2 g

Explanation:

The VOLUME of the ring is 4.2 - 4.0 = .2 ml = .2 cm^3

the MASS of the ring is this times the density

.2 cm^3 * 21 g/cm^3 = 4.2 g

4 0

2 years ago

Read 2 more answers