What is 2KNO3 + 1H2CO3 = 1K2CO3+2HNO3 reaction type

Chemistry

1 answer:

Tema [17]3 years ago

4 0

DR is the correct answer

hope this helps

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A certain metal M forms a soluble sulfate salt MSO, Suppose the left half cell of a galvanic cell apparatus is filled with a 3.0

dimaraw [331]

Explanation:

It is known that for high concentration of $M^{2+}$ , reduction will take place. As, cathode has a positive charge and it will be placed on left hand side.

Now, $E^{o}_{cell}$ = 0 and the general reaction equation is as follows.

$M^{2+} + M \rightarrow M + M^{2+}$

3.00 M n = 2 30 mM

E = $0 - \frac{0.0591}{2} log \frac{50 \times 10^{-3}}{1}$

= $-\frac{0.0591}{2} log (5 \times 10^{-2})$

= 0.038 V

Therefore, we can conclude that voltage shown by the voltmeter is 0.038 V.

5 0

3 years ago

To a 0.0001 m solution of mg(no3)2, naoh was added to a final concentration of 0.001m did a precipitate form?

Natalija [7]

I looked on a solubility chart to answer this question, and hydroxides are generally insoluble (with some exceptions of course). However, it says to consider $Mg(OH)_{2}$ as an insoluble substance, though it may be moderately soluble.