3 years ago

Jenny places a strip of pH paper into a solution. When she removes the pH paper, it has turned yellow-green.

Chemistry

2 answers:

Ronch [10]3 years ago

4 0

Jenny puts the ph paper and lines it up PH SCALE to find how strong the solution.

vaieri [72.5K]3 years ago

4 0

Answer: compare the pH paper's color with a chart of colors and pH ranges

Explanation:

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Answer:

The expression to calculate the mass of the reactant is $m = \frac{1.080kJ}{31.2kJ/g}$

Explanation:

<em>The amount of heat released is equal to the amount of heat released per gram of reactant times the mass of the reactant.</em> To keep to coherence between units we need to transform 1,080 J to kJ. We do so with proportions:

$1,080J.\frac{1kJ}{10^{3}J } =1.080kJ$

Then,

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