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eimsori [14]
3 years ago
8

To a 2.00-L flask, 2.00 mol each of H2and I2is added. The Kcfor this reaction is 55.3. Determine the equilibrium concentrations

of all chemical species at room temperature.
Chemistry
1 answer:
Alecsey [184]3 years ago
5 0

Answer:

hi hi hi hi hi hi hibbdnnd

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Calculate the density of carbon dioxide at STP
Artist 52 [7]

Answer:

Density = mass/volume

= 44/22.4

= 1.96 gram/liter

The density of the Carbon Dioxide at S.T.P. (Standard Temperature and Volume) is 1.96 gram/liter.

5 0
3 years ago
When balancing a chemical equation, the number of h atoms in 2 ch4 is eight?
Viktor [21]
Yes... that is correct.

CH4 is methane so the coefficent in front of it would double the number of atoms of each element
6 0
3 years ago
What is the % composition of Carbon in Chromium (iii) Carbonate
photoshop1234 [79]

Step 1 - Discovering the ionic formula of Chromium (III) Carbonate

Chromium (III) Carbonate is formed by the ionic bonding between Chromium (III) (Cr(3+)) and Carbonate (CO3(2-)):

Cr^{3+}+CO^{2-}_3\rightarrow Cr_2(CO_3)_3

Step 2 - Finding the molar mass of the substance

To find the molar mass, we need to multiply the molar mass of each element by the number of times it appears in the formula of the substance and, finally, sum it all up.

The molar masses are 12 g/mol for C; 16 g/mol for O and 52 g/mol for Cr. We have thus:

\begin{gathered} C\rightarrow3\times12=36 \\  \\ O\rightarrow9\times16=144 \\  \\ Cr\rightarrow2\times52=104 \end{gathered}

The molar mass will be thus:

M=36+104+144=284\text{ g/mol}

Step 3 - Finding the percent composition of carbon

As we saw in the previous step, the molar mass of Cr2(CO3)3 is 284 g/mol. From this molar mass, 36 g/mol come from C. We can set the following proportion:

\begin{gathered} 284\text{ g/mol ---- 100\%} \\ 36\text{ g/mol ----- x} \\  \\ x=\frac{36\times100}{284}=\frac{3600}{284}=12.7\text{ \%} \end{gathered}

The percent composition of Carbon is thus 12.7 %.

8 0
1 year ago
11. How much magnesium reacts with 12.5g of oxygen to produce 31.5g of 5 points
AfilCa [17]
Your answer should be C.
6 0
3 years ago
How does the Sun fit into a food web?
Nastasia [14]
It fits into the food web by being a producer by producing light for other organisms such as grass and other plants
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