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larisa86 [58]
3 years ago
12

Question 15 need this answered asap (chemistry)

Chemistry
1 answer:
Tcecarenko [31]3 years ago
8 0

Answer:

80.7 L

Explanation:

PV = nRT

P = 1520 mmHg = 2 atm

n = 5 mol

R = 0.08206 (L * atm)/(mol * K)

T = 393.15 K

2 (V) = 5 (0.08206) (393.15)

V ≈ 80.7 L

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Write the scientific term.
Reil [10]

Answer:  Solubility.

Explanation:

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Thus the scientific term for "the number of grams of solute dissolved in 100 g of the solvent to form a saturated solution at STP​" is called as Solubility.

6 0
2 years ago
10 POINTS!<br> What stops beta particles?<br><br> skin<br> aluminum foil<br> paper<br> air
MakcuM [25]

Answer:

The answer is aluminum foil.

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A metal, M, forms an oxide having the formula MO2 containing 59.93% metal by mass. Determine the atomic weight in g/mole of the
Damm [24]

Answer:

See solution.

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to set up the formula for the calculation of the by-mass percentage of the metal:

\%  M=\frac{m_M}{m_M+2*m_O}*100 \%\\\\59.93\%  =\frac{m_M}{m_M+32.00}*100 \%

Thus, we solve for the molar mass of the metal to obtain:

59.93\% (m_M+32.00) =m_M*100 \%\\\\m_M*59.93\% +1917.76\% =m_M*100 \%\\\\m_M=47.86g/mol

For the subsequent problems, we proceed as follows:

a.

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b.

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c.

0.235gNH_3*\frac{1molNH_3}{17.03gNH_3} *\frac{3molH}{1molNH_3}*\frac{6.022x10^{23}atomsH}{1molH}=2.49x10^{22}atomsH

Regards!

7 0
2 years ago
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erma4kov [3.2K]

Answer:

The radioactive isotopes within these brains typically record the ages of the grains-not the time when the sedimentary rock was formed, making it difficult to date using radiometric dating. The half-life of U-235 is 704 million years.

Explanation:

hope this helps but if i'm wrong then i'm sorry..

4 0
2 years ago
Read 2 more answers
Your lab partner turns to get a pencil, and accidentally knocks over and breaks a test tube full of sulfuric acid. What should y
Troyanec [42]
The answer to your question is D. hope this helps
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3 years ago
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