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4 years ago

Which is the first step to take to help reduce pollution

Chemistry

1 answer:

rjkz [21]4 years ago

6 0

B. Gain information about the current state of the environment and ways to improve it.

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Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq) , as described b

Katyanochek1 [597]

Answer:

$m_{MnO_2}=1.378gMnO_2$

Explanation:

Hello,

In this case, we first apply the ideal gas equation to compute the moles of produced chlorine:

$n_{Cl_2}=\frac{PV}{RT}=\frac{765 Torr*\frac{1atm}{760Torr}*0.385L}{0.082\frac{atm*L}{mol*K}*298.15K} =0.01585molCl_2$

Then, by considering the given reaction, applying the stoichiometry, that shows a 1 to 1 relationship between chlorine and manganese dioxide, we find:

$m_{MnO_2}=0.01585molCl_2*\frac{1molMnO_2}{1molCl_2} *\frac{86.937gMnO_2}{1molMnO_2} \\m_{MnO_2}=1.378gMnO_2$

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3 0

3 years ago

How do you solve for density

vodka [1.7K]

The Density Calculator uses the formula p=m/V, or density (p) is equal to mass (m) divided by volume (V). The calculator can use any two of the values to calculate the third. Density is defined as mass per unit volume.

5 0

3 years ago

Read 2 more answers

Maurels

lora16 [44]

<h2>Answer:</h2>

the force of gravity turn that potential energy into enough kinetic energy to topple a domino larger than its self.

Explanation:

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6 0

2 years ago

3 moles of anything is how many particles?

Natali [406]

Answer:

<h2>1.806 × 10²⁴ particles</h2>

Explanation:

The number of particles in a substance can be found by using the formula

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 3 × 6.02 × 10²³

We have the final answer as

<h3>1.806 × 10²⁴ particles</h3>

Hope this helps you

3 0

3 years ago

Drag the labels onto the table to indicate when each statement Is true. Labels can be used once, more than once, or not at all.

liq [111]

The labels the table to indicate when each statement Is true. Labels can be used once, more than once, or not at all, The orange dye moves independently of the purple dye. 2. Concentration gradients exist that drive diffusion of both dyes. : free water, solute, free water, solute.

In chemistry, attention is the abundance of a constituent divided by way of the total quantity of an aggregate. several types of mathematical descriptions may be prominent: mass concentration, molar concentration, range concentration, and quantity concentration.

it's miles the amount of solute dissolves in one hundred g solvent. If the attention of the answer is 20 %, we understand that there are 20 g solutes in one hundred g solution. instance: 10 g salt and 70 g water are mixed and the solution is ready. find awareness of the answer by means of percentage mass.

Learn more about concentration here:

brainly.com/question/26255204

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3 0

1 year ago