Please help! What is the minimum temperature needed to dissolve at least 10 g of KClO3?

Chemistry

1 answer:

Agata [3.3K]3 years ago

6 0

I believe it’s 35 Celsius

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No explanation needed, just a quick answer please!

tresset_1 [31]

all of the above is the answer :)

8 0

4 years ago

Given 16.2 grams of substance Y, if the substance absorbs 2722 joules of energy and the specific heat of the substance is 9.22 J

snow_tiger [21]

Since the substance absorbs heat, it is expected that the temperature will rise. The formula for the internal energy of a substance is given by the equation:

ΔU = mCpΔT

where:

ΔU = internal energy
m = mass of substance
Cp = specific heat capacity of substance
ΔT = change in temperature

ΔU = 2722 Joules = 16.2 grams (9.22 J/g-°C) (Tf - 26°C)

This gives a final temperature of Tf = 44.22 °C

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3 years ago

What is the volume, in liters, of 6.8 mol of Kr gas at STP?

Virty [35]

Answer:

$\boxed {\boxed {\sf D. \ 152 \ L}}$