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sergeinik [125]
3 years ago
5

When a piece of sodium carbonate reacts with dilute HCl, a gas X is produced. When gas X is passed through lime water then the s

olution turns milky and a white precipitate Y is formed a. Write the chemical formula of X, Y and (3)b. Write the chemical name of compound Y c. What is the nature of solution of sodium carbonate salt. Acidic salt or basic salt?
Chemistry
1 answer:
siniylev [52]3 years ago
7 0
Gas x would be carbon dioxide.

note/ acid + carbonate —> salt + water + carbon dioxide

the white precipitate would be calcium carbonate. CaCo₃

note/ this is a common eqn u need to remember.

X - CO₂ (carbón dioxide)
Y - CaCo₃ (calcium carbonate)

sodium carbonate is a basic salt
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b)

Given that; the concentration  for  glucose 1-phosphate = 1.090 x 10⁻² M

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Equilibrium constant  K_{eq can be calculated as:

K_{eq = \frac{[glucose-6-phosphate]}{[glucose-1-[phosphate]}

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the ionization constant, Ka, for and indicator, HIn, is 1.0x10^-8. The color of the unionized form is red and the color of the i
Fudgin [204]
<span>the ionization constant, Ka, for and indicator, HIn, is 1.0x10^-8. The color of the unionized form is red and the color of the ionized form is yellow. What is the color of the indicator in a solution whose pH is 4.6? (Hint: the color of an indicator can be estimated by considering the ratio of [HIn]/[In]. If the ratio is equal to or greater than 10, the color will bet hat of the unionized form. If the ratio is equal to or smaller than 0.1, the color will be that of the ionized form.
</span><span>Ka=[H+][A-]/[HA] substitute for pH and find the value of A-/HA.
</span><span>

</span><span>so it'd just be 1x10^-8 divided by 4.6</span>
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