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Study the set-up below and answer questions that follow. i) Name the gas that is produced when concentrated sulphuric (VI) acid reacts with the sodium chloride ii) Why is it necessary to use a funnel in the beaker? iii) How does the gas affect the pH of the water in the beaker?

Chemistry

ScanSolve AI Answer

Haya, nitakusaidia na maswali haya.

i) Jina la gesi inayozalishwa wakati asidi ya sulphuriki (VI) iliyokolea inaitikia na kloridi ya sodiamu.
Gesi inayozalishwa ni hidrojeni kloridi.

ii) Kwa nini ni muhimu kutumia faneli kwenye bika?
Ni muhimu kutumia faneli ili kuzuia maji kurudi nyuma (suck-back) kwenye chupa ya mmenyuko. Gesi ya hidrojeni kloridi huyeyuka sana kwenye maji, na bila faneli, shinikizo linaweza kushuka ghafla na kusababisha maji kufyonzwa kurudi kwenye chupa. Faneli huongeza eneo la uso la gesi na maji na kuruhusu hewa kuingia ikiwa shinikizo litashuka, hivyo kuzuia suck-back.

iii) Gesi huathirije pH ya maji kwenye bika?
Gesi ya hidrojeni kloridi inapoyeyuka kwenye maji, huunda asidi hidrokloriki. Asidi hii ni asidi kali, hivyo itapunguza pH ya maji, na kuyafanya kuwa na asidi zaidi.

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