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musickatia [10]
2 years ago
6

The atomic mass of copper - is 62.930 amu

Chemistry
1 answer:
Leona [35]2 years ago
3 0

Nope the atomic mass of copper roughly 63,546 atomic mass units

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8. Estimate the maximum volume percent of Methanol vapor that can exist at standard conditions. Vapor pressure = 88.5 mm Hg in a
sashaice [31]

Explanation:

Vapor pressure is defined as the pressure exerted by vapors or gas on the surface of a liquid.

It is known that at standard condition, vapor pressure is 760 mm Hg.

And, it is given that methanol vapor pressure in air is 88.5 mm Hg.

Hence, calculate the volume percentage as follows.

                  Volume percentage = \frac{\text{given vapor pressure}}{\text{standard vapor pressure}} \times 100

                                                    = \frac{88.5}{760} \times 100

                                                    = 11.65%

Thus, we can conclude that the maximum volume percent of Methanol vapor that can exist at standard conditions is 11.65%.

6 0
3 years ago
Complete the following table of neutralization reaction and also write down the names of acid base and salt in it.​
scZoUnD [109]

Answer:

K

SO4

Br

Explanation:

HNO3+K

SO4+NH4OH

Br+KOH

5 0
2 years ago
What do organisms do with the organic carbon
irina1246 [14]
Causes carbon to move from one reservoir to another
4 0
3 years ago
A 25.0 g sample of metal at
Nadya [2.5K]

The change in temperature of the metal is 6.1°C. Details about change in temperature can be found below.

<h3>How to calculate change in temperature?</h3>

The change in temperature of a substance can be calculated by subtracting the initial temperature of the substance from the final temperature.

According to this question, a 25.0 g sample of metal at 16.0 °C is warmed to 22.1 °C by 259J of energy.

This means that the change in temperature of the metal can be calculated as:

∆T = 22.1°C - 16°C

∆T = 6.1°C

Therefore, the change in temperature of the metal is 6.1°C.

Learn more about change in temperature at: brainly.com/question/19051558

#SPJ1

7 0
1 year ago
A 42.0g sample of a compound containing only C and H was analyzed. The results showed that the sample contained 36.0g of C and 6
SashulF [63]

Answer:

The correct answer is option D.

Explanation:

Mass of compound = 42.0 g

Mass of carbon in compound = 36.0 g

Mass of hydrogen in compound = 6.0 g

Moles of carbon = \frac{36.0 g}{12 g/mol}=3.0 mol

Moles of hydrogen = \frac{6.0 g}{1 g/mol}=6.0 mol

Empirical formula of the compound, divide least number of moles from each element.

Carbon = \frac{3.0}{3.0}=1

Hydrogen = \frac{6.0}{3.0}=2

Empirical formula of compound = CH_2

The empirical formula of the compound can be calculated from the given data.

4 0
2 years ago
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