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77julia77 [94]
3 years ago
6

08.04 MC) An unknown solution has a pH of 7.2. Which of these chemicals is likely to cause the greatest decrease in the pH of th

e solution when added to the solution? (5 points) a HF b KOH c NH3 d HNO3
Chemistry
1 answer:
OLEGan [10]3 years ago
6 0

Answer:

HNO3

Explanation:

i have the test

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4 years ago
Determine the enthalpy change when 23.5 g of carbon is reacted with oxygen according to the reaction C(s) + O2(g) CO2(g) delta H
xeze [42]
We are provided with the amount of energy released when one mole of carbon reacts. We mus first convert the given mass of carbon to moles and then compute the energy released for the given amount.

Moles = mass / atomic mass
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One mole releases 394 kJ/mol
1.96 moles will release:
394*1.96
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3 years ago
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3 years ago
Classical name for chromium(III) phosphate
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8 0
4 years ago
A gas at a pressure of 360 torrs and a volume of 750 ml. If the pressure becomes 1.5 atm what is the new volume?
r-ruslan [8.4K]

Answer:

V₂ = 236.84 mL

Explanation:

The relation between pressure and volume is inverse.

We can write it as follows :

P_1V_1=P_2V_2

We have,

P₁ = 360 torrs, V₁ = 750 mL, P₂ = 1.5 atm = 1140 torr.

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