1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sati [7]
3 years ago
11

Two samples of calcium fluoride are decomposed into their constituent elements. The first sample produced 0.154 g of calcium and

0.146 g of fluorine. If the second sample produced 294 mg of fluorine, how many g of calcium were formed?
Chemistry
1 answer:
den301095 [7]3 years ago
3 0

Answer : The mass of calcium in sample B is, 0.310 grams.

Explanation :

Law of definite proportion : It is defined as a given compound always contains exactly the same proportion of elements by weight.

Now we have to calculate the mass of calcium in sample B.

As, first sample of 0.146 g of fluorine = second sample of 0.294 g of fluorine

So, first sample of 0.154 g of calcium = second sample of \frac{0.154}{0.146}\times 0.294=0.310g of calcium

Therefore, the mass of calcium in sample B is, 0.310 grams.

You might be interested in
Chem please help theres a photo attatched
a_sh-v [17]

Answer:

the top one is 100.000 and bottom one is 100.000

Explanation:

8 0
3 years ago
Read 2 more answers
Need Chemistry help ASAP! Which of the following statements regarding chemical equilibrium is NOT necessarily true?
guajiro [1.7K]
So confusing try to explain more plz
3 0
3 years ago
Read 2 more answers
How many moles are there in 545g of <img src="https://tex.z-dn.net/?f=" id="TexFormula1" title="" alt="" align="absmiddle" class
Pachacha [2.7K]

answer: 3.40625 moles

Explanation: see the attached pics

8 0
3 years ago
How are sound waves can be used for various applications
kykrilka [37]

Answer:

Sound waves are used for measurement in hertz.

Explanation:

6 0
3 years ago
Define international system of units , where does the system originate
BARSIC [14]

Answer:

The International System of Units (SI) is originated in France by frenches and originally was called a metric system of measurements. It provides definitions of various units of measurement such as weight, distance, electric current, temperature, and others which is widely accepted in the different fields of science and technology.

It is the system that is extended and derived from the french metric system of measurement is accepted in 1960 by convention 44 nation of the world to use particular unit of measurement worldwide to avoid confusion.

6 0
3 years ago
Other questions:
  • Study this chemical reaction:
    10·1 answer
  • The energy required to remove an electron from the outermost shell is called
    12·1 answer
  • Beth made the chart shown. Which headings best complete the chart?
    6·1 answer
  • How would the graph change if a catalyst were used
    11·1 answer
  • HELP URGENT!
    12·2 answers
  • What differences did you notice in the different states of water
    7·1 answer
  • I Need Help!!! 50 POINTS AND BRAINLIEST!!! Fill out the study guide ASAP!!!
    8·1 answer
  • 1. How many moles of potassium are present in 4.23 x 1025 potassium atoms?
    14·1 answer
  • If 220 grams of C3H8 react with 20 grams of O2, how much CO2 can be formed? help plz
    12·1 answer
  • CO2 and H2O are examples of chemical?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!