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Chemistry
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9 May 2018

When the carbonate ion (CO3-2) reacts with an acid agas is evolved.

a. What is the identity and molar mass of that gas?

b. Write the balanced chemical equation for the reaction ofNa2CO3 with HCl to produce this
gas.

c. If 2.0 moles of Na2CO3 is reacted with HCl, how many moles ofgas will be produced?
Explain.

d. If 0.345 moles of the gas are produced during a reaction andcollected at a temperature of
294 K and pressure of 0.981 atm, what volume will the gas occupy?Show your work.

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Reid WolffLv2
11 May 2018
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Related questions


11. (TCO 3) Magnesium reacts with phosphoric acid to produce magnesium phosphate and hydrogen gas. The equation for this chemical reaction is shown below.

Mg + H3PO4 ---> Mg3(PO4)2 + H2 ·

Classify the reaction as combination, decomposition, single replacement, or double replacement. (2 points) ·

Is the equation balanced? If not, balance it. (4 points) ·

If 2 moles of Mg reacted completely, how many moles of Mg3(PO4)2 would be produced? How many grams of Mg3(PO4)2 would be produced? (4 points) (Points : 10)

18. Hydrogen gas reacts with oxygen gas to form water vapor. If 34.5 g of hydrogen gas react with 26.6 g of oxygen gas, how many grams of water vapor will be produced? 2H2(g) + O2(g) --> 2H2O(g)

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22. Lithium reacted with oxygen gas to form lithium chloride. The chemical formula for lithium chloride is___________.

(A). LiO (B). LiO2 (C). Li2O3 (D). Li2O (E). Li2O4

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