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Drupady [299]
3 years ago
12

Use dimensional analysis to find the number of cm/min in 5.8 m/hr. Show your work on the white board. Be sure to calculate the a

nswer in the correct number of significant figure

Chemistry
1 answer:
Murrr4er [49]3 years ago
8 0
The answer is attached in the photo

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At STP , how many molecules of nitrogen gas are in 2.24 L?
Oksanka [162]

Explanation:

At STP ,2.24 L contain 0.1 mole of N²

<h2>So,No. of molecules of N2 = 6.022*10²²</h2>
7 0
2 years ago
Treatment of phenol with excess aqueous bromine is actually more complicated than expected. A white precipitate forms rapidly, w
Anettt [7]

Answer:

Please see attachment

Explanation:

Please see attachment

8 0
2 years ago
1.For the reaction P4 O10(s) + 6H2O(l) → 4H3PO4(aq), what mass of P
Alex17521 [72]
P₄O₁₀ + 6H₂O → 4H₃PO₄
The equation shows us that the molar ratio of
P₄O₁₀ : 6H₂O = 1:6

We also know that one mole of a substance contains 6.02 x 10²³ particles. We can use this to calculate the moles of water.
moles(H₂O) = (5.51 x 10²³) / (6.02 x 10²³)
= 0.92 mole
That means moles of P₄O₁₀ = 0.92 / 6
= 0.15

Each mole of P₄O₁₀ contains 4 moles of P. 
moles(P) = 4 x 0.15 = 0.6 mol
Mr of P = 207 grams per mol
Mass of P = 207 x 0.6
= 124.2 grams
5 0
3 years ago
Read 2 more answers
he mineral rhodochrosite [manganese(II) carbonate, MnCO3] is a commercially important source of manganese. Write a half-reaction
valina [46]

Answer:

MnCO_{3}+2H_{2}O-2e^{-}\rightarrow MnO_{2}+HCO_{3}^{-}+3H^{+}

Explanation:

Half reaction:MnCO_{3}\rightarrow MnO_{2}

(1)CO_{3} balance: MnCO_{3}\rightarrow MnO_{2}+HCO_{3}^{-}

(2)H and O balance in acidic medium:MnCO_{3}+2H_{2}O\rightarrow MnO_{2}+HCO_{3}^{-}+3H^{+}

(3) charge balance:MnCO_{3}+2H_{2}O-2e^{-}\rightarrow MnO_{2}+HCO_{3}^{-}+3H^{+}

Hence balanced half-reaction:MnCO_{3}+2H_{2}O-2e^{-}\rightarrow MnO_{2}+HCO_{3}^{-}+3H^{+}

7 0
3 years ago
Read 2 more answers
What are the reactants and products? Write a reaction equation and label the reactants and products.
djyliett [7]
Reactants are the substance that undergo a change in a chemical reaction while products are what is produced after a reaction. don't have time to write a reaction.
8 0
2 years ago
Read 2 more answers
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