2 years ago

Beakers A, B, C, and D shown below each contain a different aqueous

Chemistry

1 answer:

Nataly_w [17]2 years ago

4 0

Answer: a n b

Explanation:

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Hey can someone help me and show work please

Ivahew [28]

Answer: 2.54g

Explanation:

Molar Mass of H2O2 = (2x1) + (2x16) = 34g/mol

1mole (34g) of H2O2 contains 6.02x10^23 molecules

Therefore Xg of H2O2 will contain 4.5x10^22 molecules i.e

Xg of H2O2 = (34x4.5x10^22)/6.02x10^23 = 2.54g

5 0

3 years ago

How many liters of 4.0 NaOH solution will react with 1.8 mol H2SO4

wlad13 [49]

Answer:

0.9 liters of 4.0 M NaOH solution will react with 1.8 moles of sulfuric acid.

Explanation:

$2NaOH(aq)+H_2SO_4(aq)\rightarrow Na_2SO_4(aq)+2H_2O(l)$

According to reaction, 1 mole of sulfuric acid reacts with 2 moles of sodium hydroxide.

Then 1.8 moles of sulfuric acid will react with:

$\frac{2}{1}\times 1.8 mol=3.6 mol$ moles of NaOH.

Molarity of NaOH = 4.0 M

Moles of NaOH= n = 3.6 mol

Volume of NaOH = V

$M=\frac{n}{V(L)}$

$V=\frac{n}{M}=\frac{3.6 mol}{4.0 M}=0.9 L$

0.9 liters of 4.0 M NaOH solution will react with 1.8 moles of sulfuric acid.

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3 years ago

The value of Avogadro number is

Anastasy [175]

The value of Avogadro number is 6.02214076 × 10^24

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2 years ago

Two or more different elements chemically combine to form compounds.<br><br> True or false

vodomira [7]

Answer:

true

Explanation:

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2 years ago

I2 is an example of a

Free_Kalibri [48]

Answer:

number

Explanation:

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2 years ago

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