Weirddobby873 Weirddobby873

11-02-2020
Chemistry

contestada

Calcium carbonate () is 34.5% Ca by mass. In a 418 g sample of , how many grams of calcium are present?

Respuesta :

anfabba15 anfabba15

11-02-2020

Answer:

144.2 g of Ca are present in 418 g of sample

Explanation:

34.5 % Ca → In 100 g of salt there are 34.5 g of Ca

Let's make a rule of three:

In 100 g of salt there are 34.5 g of Ca

In 418 g of salt there must be (418 . 34.5) / 100 = 144.2 g

Answer Link

Otras preguntas

Which sentence is punctuated correctly? My friends Joe, Maria, and I drove into the city. last night we went to a concert in the park. My friends Joe, Maria, an

What's the difference in "ascii" value between 'e' and 'a'? (consult a table of ascii values:?

Calvinists were _____. a religious group with very strict ideals a pro-slavery faction in Missouri early settlers in New England members of a militant aboliti

During the Progressive Era, social reformers sought changes in: ________. Select all that apply. big business women's suffrage working conditions educational r

In analyzing the data from your program, you discover one star that dims by about 0.1% for about two hours on every 63rd day. assuming the dimming is caused by

Can someone help me ? Plz

Marine iguanas are the only sea going lizard on the planet? true or false

What is the percentage of .93?

desribe how New Mexico's location has changed over time

Why was Davy Crockett an important figure to the Texas Revolution?