3 years ago

This is very helpful, but what is the best one?

Chemistry

1 answer:

Mice21 [21]3 years ago

8 0

Can you tell us what you mean and post the questions ?

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How many grams of KOH do we need to make 250.0ml of a 0.75 M

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Answer:

10.52g KOH

Explanation:

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2 years ago

What is Reflection?

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Answer:Reflection is the bounce back of the rays of light

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2 years ago

What is the mass of Al₂O3 that will contain 10 kg of aluminium?

Oksanka [162]

Answer:

1 mole of Al2O3 = 102 grams

1 mole of Al2 = 54 grams

102 grams of Al2O3 contains = 54 gram of Al2

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2 years ago

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If the pressure of a gas sample is quadrupled and the absolute temperature is doubled, by what factor does the volume of the sam

Natasha_Volkova [10]

Answer:

D) 1/2

Explanation:

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$\frac {{P_1}\times {V_1}}{T_1}=\frac {{P_2}\times {V_2}}{T_2}$

Given,

P₂ = 4P₁

T₂ = 2T₁

Using above equation as:

$\frac {{P_1}\times {V_1}}{T_1}=\frac {{P_2}\times {V_2}}{T_2}$

$\frac {{P_1}\times {V_1}}{T_1}=\frac {{4\times P_1}\times {V_2}}{2\times T_1}$

$V_2=\frac{1}{2}\times V_1$

<u>The volume change by half of the original.</u>

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3 years ago

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LUCKY_DIMON [66]

Answer:

Explanation:

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2 years ago