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Nuetrik [128]
3 years ago
10

What color does red litmus paper turn in an acid base and neutral solution?

Chemistry
2 answers:
quester [9]3 years ago
6 0
<span> red litmus paper turns </span>blue <span>under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). Neutral litmus paper is purple.</span>
murzikaleks [220]3 years ago
3 0
Red litmus paper will be red in an acid and blue in a base .      
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Find the percentage of mass in each of the element Ca ( HCO3)2 (Ca= 40, H = 1, O = 16, C= 35)​
Alex787 [66]

Answer:

% Ca = 24.69%

% H = 1.2%

% C = 14.8%

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Explanation:

The percentage by mass of each element can be calculated by dividing the mass of each element in the compound by the molar mass of the compound.

Molar mass of Ca(HCO3)2

Where; (Ca= 40, H = 1, O = 16, C= 12)

= 40 + {1 + 12 + 16(3)}2

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= 14.8%

- % mass of O = 96/162 × 100

= 0.5925 × 100

= 59.25%

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