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kozerog [31]
3 years ago
6

F. How many centigrams are in 253,000 picograms? Plz show work

Chemistry
1 answer:
Darina [25.2K]3 years ago
3 0

The answer is 2.53e-5, I unfortunately don't know how you would really show the work other than showing the division.

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Determine which law is appropriate for solving the following problem. Carbon dioxide is in a steel tank at 20°C, 10 liters and 1
patriot [66]

<u>Answer:</u>

Law used: Combined Gas Law

<u>Explanation:</u>

We are given the following problem:

Carbon dioxide is in a steel tank at 20°C, 10 liters and 1 atm. What is the pressure on the gas when the tank is heated to 100°C?

To solve this, the most appropriate law that can be used it Combined Gas Law, which is the result of combining the Boyle's law, Charles' law, and Gay-Lussac's law together.

5 0
3 years ago
Read 2 more answers
A pan containing 40 grams of water was allowed to cool from a temperature of 91.0C. If the amount of heat repressed is 1,300 jou
Vinvika [58]

Answer:

83°C

Explanation:

The following were obtained from the question:

M = 40g

C = 4.2J/g°C

T1 = 91°C

T2 =?

Q = 1300J

Q = MCΔT

ΔT = Q/CM

ΔT = 1300/(4.2x40)

ΔT = 8°C

But ΔT = T1 — T2 (since the reaction involves cooling)

ΔT = T1 — T2

8 = 91 — T2

Collect like terms

8 — 91 = —T2

— 83 = —T2

Multiply through by —1

T2 = 83°C

The final temperature is 83°C

3 0
3 years ago
0.5mol/dm3 hydrochloric acid is added gradually to a flask containing 20cm3 of 2 mol/ dm3 sodium hydroxide solution.
sweet-ann [11.9K]

Answer:

The answer is B which is 40

7 0
2 years ago
Pls help with me who is good in science!!!​
anzhelika [568]

Here are my answers since I examined the questions.

Question 1.

No! as a matter of fact, the Rock cycle has no Beginning and No End it's an infinite loop.

Question 2.

The Rock cycle can happen in both ways such as, Volcanic rock melts and cool downs happen quite quickly as in others happen slower.

Question 3.

The 4 Major Steps of the rate of change are, Weathering, Transportation, Deposition, And Compaction.

Question 4.

The main factor for this one would be: The mineral composition of the Parent Rock.

Question 5.

The Parent Rock and the Pressure/temperature conditions.

These all my answers for this project, Good Luck.

7 0
2 years ago
35.10 g of aluminum hydroxide is allowed to react with 53.94 g of sulfuric acid as follows:2Al(OH)3(s) + 3H2SO4(aq) --------&gt;
ikadub [295]

Answer:

62.586 gram

Explanation:

moles of Al(OH)3 = mass / molar mass = 35.1 / (27+17x3) = 0.45 mol

moles of H2SO4 = mass / molar mass = 53.94 / (2+32+16x4) = 0.55 mol

H2SO4 is the limiting reagent (reacts completely)

⇒ moles of Al2(SO4)3 is worked out by moles of H2SO4

moles of Al2(SO4)3 = moles of H2SO4 / 3 = 0.183 mol

mass of Al2(SO4)3 = mole x molar mass = 0.183 x (27x2 + 96x3) = 62.586 gram

8 0
3 years ago
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