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

Question 9 (1 point)What two-year degree focuses on any major related to math or sciences?Associate of Applied Science (A.A.S)Associate of Arts (A.A.)Associate

Anthony uses 42 square stickers to completely cover the front of his notebook. each sticker is 1 inch by 1-inch which could be the side lengths of his notebook

Traveling for hours cross-country you see only a few animal tracks. Perhaps a single ptarmigan or a hare. Once in a while the tracks of a moose. In the dead of

Which type of modulation is used for GPS?

7. What term is used to define a Senator's attempt to "talk a bill to death"?A. Committee DebateB. FilibusterC. GraftD. Special Session

problem 6, place a number in each box so that each question is true and each question has at lease one negative number

The simple Triage and Rapid Transport System (START) classifies victims into categories based on severity of injury

Which is not a correct description of the graph below?

4.A bucket contains 3 bottles of applejuice, 2 bottles of orange juice, 6 bottlesof tomato juice, and 8 bottles of water.If Kira randomly selects a bottle, what

atural Selection9It is estimated that only one in a thousand sea turtles make it from eggs to adults.What is this an example of?O variationO overproductionO sur