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
Sever21 [200]
3 years ago
8

For each of the following numbers, determine the number of significant figures it contains, rewrite it without using scientific

notation, and determine the number of significant figures in the result. (a) 3.050 x 10^-4, (b) 4.3200 x 10^2,(c) 8.001 x 10^-7, (d) 2.006080 x 10^5, (e) 1.503 x 10^-5, (f) 6.07510 x 10^4.
Chemistry
1 answer:
soldier1979 [14.2K]3 years ago
7 0

Answer:

Explanation:

a) .0003050                    significant figure - 4

b) 432.00                          significant figure-5

c) .0000008001                significant figure -4

d) 200608.0                       significant figure -7

e) .00001503                       significant figure-4

f) 60751.0                              significant figure- 6.

zero after decimal are all significant . zero before decimal is significant only when it is preceded by a digit.All digits are significant.

You might be interested in
1. Express in conventional notation (no exponents) in the space provided within the
mina [271]

Answer:

a) 320: two significant figures.

b) 2,366: four significant figures.

c) 73.0: three significant figures.

d. 532.5: four significant figures.

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to write each number by knowing we move the decimal places to the right as much as the exponent is, and also, we count every figure, even zeros, because they are to the right of the first nonzero digit:

a) 320: two significant figures because the rightmost zero is not preceded o followed by a decimal place.

b) 2,366: four significant figures.

c) 73.0: three significant figures, because the zero is followed by the decimal place.

d. 532.5: four significant figures.

Regards!

7 0
3 years ago
In The Lord of the Rings, Frodo and Sam use a rope to rappel down a cliff. The rope was 30 ells long. How high was the cliff in
Tcecarenko [31]

Answer:

324 meters

Explanation:

I don't really have an explanation

7 0
3 years ago
The coastal region upon which the waves in the following image are breaking most likely has
oksian1 [2.3K]
That is a steep slope for sure, no doubt about it. Hope this helps!
7 0
3 years ago
Read 2 more answers
Iron reacts slowly with oxygen and water to form a compound commonly called rust (Fe₂O₃?4H₂O). For 45.2 kg of rust, calculate
Mashcka [7]

Rust (Fe2O3. 4H2O) is formed when iron interacts slowly with oxygen and water. Mass of Fe in grams is 2.18 x 10⁴ g.

<h3>What is the explanation?</h3>

There are 2 moles of Fe atoms in 1 mole of Fe2O3-4H2O. The number of moles of Fe atoms in 45.2 kg rust is shown below.

Moles of Fe = 195.01 mol Fe₂O₃.4H₂O ( \frac{2 mol Fe }{1 mol Fe₂O₃.4H₂O} )

Moles of Fe = 390.02 mol Fe

Multiply the calculated number of moles of iron, Fe, by its molar mass which is 55.85 \frac{g}{mol}

Mass of Fe = 390.02 mol Fe ( \frac{55.85 g Fe}{mol Fe} )

Mass of Fe = 2.18 x 10⁴ g Fe

Avogadro's number (6.022 x 1023) of molecules (or formula units) make up one mole of a substance (ionic compound). The mass of 1 mole of a chemical is indicated by its molar mass. It provides you with the amount of grams per mole of a substance, to put it another way.

To learn more about moles visit:

brainly.com/question/26416088

#SPJ4

4 0
2 years ago
If you put a pencil in a cup of water, it looks as if it is broken and larger in the water. This is because light waves A) can r
tekilochka [14]

Your answer should be C. bend when passing from air to water. Hope this helps! =^-^= If you need an explanation, just let me know.

6 0
3 years ago
Read 2 more answers
Other questions:
  • How many moles are represented by 118g of cobalt? Cobalt had an atomic mass of 58.93amu
    8·1 answer
  • What represents the point where water vapor condenses back to liquid?
    10·2 answers
  • As you read from left to right across the periodic table atomic numbers and what by one of each element
    11·1 answer
  • if you administering an oral acetaminophen dose of 320.mg from a bottle of 32.0 mg/ ml, how many mililitters of the solution do
    12·1 answer
  • What is the product when magnesium reacts with sulfuric acid? mg(s) h2so4(aq) →what is the product when magnesium reacts with su
    14·2 answers
  • When an atom, ion, or molecule of a reactant switches places with an unpaired reactant, the type of reaction is called _________
    7·1 answer
  • 100 Points.
    8·1 answer
  • When 3.915 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 12.74 grams of CO2 and 3.913 grams of H
    9·1 answer
  • Sugar solution and steel are both mixtures. Which statement correctly compares them?
    8·2 answers
  • How many moles are in 4.233X 10^21
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!