3 years ago

Answer for this question

Chemistry

1 answer:

OlgaM077 [116]3 years ago

7 0

Could you please retake the picture

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What is the unit of measurement for mass?

Licemer1 [7]

Grams. It is a smaller unit.

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3 years ago

How many moles of H2O will be produced from 26.0 g of H2022<br> Stoichiome

lukranit [14]

Answer:

0.7644 moles of H₂O

Explanation:

The balance chemical equation is as follow;

2 H₂O₂ → 2 H₂O + O₂

To solve this problem we will first calculate the moles of H₂O₂ as,

Moles = Mass / M/Mass

Moles = 26.0 g / 34.01 g/mol

Moles = 0.7644 mol

Secondly,

According to equation,

2 moles of H₂O₂ produces = 2 moles of H₂O

Hence,

0.7644 mol of H₂O₂ will produce = X moles of H₂O

Solving for X,

X = 2 mol × 0.7644 mol / 2 mol

X = 0.7644 moles of H₂O

5 0

3 years ago

Please help me out thank you so much

aleksandrvk [35]

Answer:

a) 1.567 x 10^9

b) 2.36 x 10^(-5)

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3 years ago

Freon-12, CF2Cl2, which has been widely used in air conditioning systems, is considered a threat to the ozone layer in the strat

Vilka [71]

Answer:

The root mean squared velocity for CF2Cl2 is $v_{rms}= 207.06 m/s$

Explanation:

From the question we are told that

The temperature is $T = -65 ^oC = -65+273 = 208K$

Root Mean Square velocity is mathematically represented as

$v _{rms} = \sqrt{\frac{3RT}{MW} }$

Where T is the temperature

MW is the molecular weight of gas

R is the gas constant with a value of $R = 8.314 JK^{-1} mol^{-1}$

For CF2Cl2 its molecular weight is 0.121 kg/mol

Substituting values

$v_{rms} = \sqrt{\frac{3 * 8.314 *208}{0.121} }$

$v_{rms}= 207.06 m/s$

5 0

3 years ago

Read 2 more answers

in calorimetry, energy is measured through heat transfer from one substance to another. Which of the following is NOT a method o

aivan3 [116]

Answer:

Explanationconvection

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3 years ago