reyesortiz6955

23.04.2021 • 

Chemistry

Gravity is important not only for life on Earth, but for the makeup of the entire galaxy. Gravity holds our solar system and galaxy together and is responsible for orbital motions within them. The diagram shows the order of planets' orbits based on distance from the Sun, while the chart provides numerical distances from the Sun Compare the diagram and chart and think about each planet's orbital pattern and distance from the Sun Based on the information given, what
conclusion can be drawn about diagram?

a) the farther out from the sun the greater a planet’s gravitational pull

b)the planets in the solar system are about the same distance from one another

c) the planets order from the sun is based on their size from smallest to largest

d) the diagram does not accurately represent the distances of planets from the sun

Ответ:

jazmaine1217

23.12.2021

Chemistry

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1.88 M

Explanation:

Para esta pregunta, debemos tener en cuenta la formula de la molaridad:

Entonces, necesitamos estos dos valores para calcular la molaridad. Podemos empezar con los litros, el problema nos dice que hay 250 mL, por lo tanto se puede realizar la conversión a litros:

Ahora necesitamos calcular las moles. Para esto debemos saber la masa molecular del KCl. El peso atomico del K es 39 g/mol y el peso atómico del Cl 35.45 g/mol. Por lo tanto la masa molecular del KCL es: 39+35.45=74.45 g/mol. Por lo tanto:

Con estos dos valores se puede calcular la molaridad:

La molaridad de esta solución sera 1.88 M

Espero que sea de ayuda!

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