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avanturin [10]
3 years ago
12

What is the mass of 3.75 moles of potassium (K)?

Chemistry
1 answer:
densk [106]3 years ago
6 0
Use stoichiometry 3.75moles k* 39.10g k\1 mole k= 146.63g k
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The starship Voyager, like many other vessels of the newly designed 24th-century fleet, uses antimatter as fuel.(b) When the ant
Drupady [299]

When the antimatter is atomic antihydrogen, a small amount of it is mixed with excess atomic hydrogen (gathered from interstellar space during flight).

<h3>What is antimatter ?</h3>

According to contemporary physics, antimatter is described as being made up of the opposite particles from "ordinary" matter, or their "partners." Only a few nanograms of antiparticles have been created artificially, but tiny quantities of antiparticles are produced every day at particle accelerators and in natural processes like cosmic ray collisions and some types of radioactive decay. However, only a small portion of these antiparticles have been successfully bound together in experiments to form antiatoms. Antimatter has never been built in a macroscopic amount due to its extremely high cost, complexity in synthesis, and handling.

A particle and its antiparticle, such as a proton and an antiproton, theoretically have the same mass but the opposite electric charge and other variations in quantum numbers.

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8 0
2 years ago
The crystal size of an igneous rock is described as its _____.​
Mila [183]

Answer:

The crystal size of an igneous rock is described as its texture.

4 0
3 years ago
Read 2 more answers
Use the mass and volume data to calculate the density of an unknown metal to the nearest hundredth.
11Alexandr11 [23.1K]

Answer:

8.90

Explanation:

Density = mass ÷ volume

D = 222.50 g ÷ 25.00

= 8.9

The density of the unknown metal is 8.90.

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8 0
3 years ago
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1) 0.143 g Mg into atoms<br> 2) 0.101 kg Ti into atoms
Neporo4naja [7]

Answer:

The answer to your question is below

Explanation:

1) 0.143g of Mg into atoms

- Look for the atomic number of Magnesium in the Periodic table              

Atomic number = 24.31 g

-Use the Avogadro's number to find the number of atoms

                          24.31g ------------------- 6.023 x 10²³ atoms

                           0.143 g -----------------  x

                           x = (0.143 x 6.023 x 10²³) / 24.31

                           x = 8.613 x 10²² / 24.31

                           x = 3.54 x 10²¹ atoms

2) 0.101 kg of Ti into atoms

-Look for the atomic number of Titanium in the Periodic table

Atomic number = 47.87 g

-Use the Avogadro's number to find the number of atoms

                      47.87 g --------------------- 6.023 x 10²³

                      101 g    ----------------------  x

                       x = (101 x 6.023 x 10²³) / 47.87

                       x = 6.08x 10²⁵ / 47.87

                      x = 1.27 x 10²⁴ atoms                            

3 0
3 years ago
an ideal otto cycle with argon as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cy
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The specific heat of gases can be taken roughly as a constant for differences in the order of 100⁰ C from ambient. Variation is crucial and cannot be disregarded for temperatures of more than, let's say 500 ⁰C or 1000⁰C.

  1. The ideal gas constant is the difference between cp and cv for low pressures (the ideal gas).
  2. The classical statistical physics principles for ideal non-interacting gases are found in any university physics primer.
  3. The demonstration that pV/T = constant is typically included in texts on macroscopic thermodynamics suggests that while temperature changes depend on specific heats, the opposite is also true.
  4. Real gas behavior requires a more complex explanation.
  5. As a result, we employ two techniques to determine the specific heat of gases: at constant volume and constant pressure.
  6. The value of the heat capacity at constant pressure is always greater than the value of the heat capacity at constant volume because the former also takes into account the value of the heat energy required to expand the substance against the constant pressure as its temperature rises.

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