3 years ago

you uses 500 mg of sucrose and placed it into 200ml of water what is the concentration of this solution?

1 answer:

3 0

We are given with 500 mg of sucrose dissoved in a 200 ml of water. The concentration of the solid is amount of solute per volume of the solvent. The concnetration can be expressed as 2.5 grams sugar per liter water or 250 mg per 100 ml water.

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Carbon disulfide, a poisonous, flammable liquid, is an excellent solvent for phosphorus, sulfur, and some other nonmetals. A kin

ipn [44]

Answer:

Rate law: = $k[CS_2]^1$

Explanation:

Given:

t $[CS_2]$

0.100 $2.7 \times 10^{-7}$

0.080 $2.2 \times 10^{-7}$

0.055 $1.5\times 10^{-7}$

0.044 $1.2\times 10^{-7}$

Rate law for the given reaction: $k[CS_2]^n$

Where, n is the order of the reaction.

Divide rate 1 with rate 3

$\frac{0.100}{0.055} =\frac{k[CS_2 (1)]^n}{k[CS_2 (3)]^n} \\\frac{0.100}{0.055} =\frac{k[2.7 \times 10^{-7}]^n}{k[1.5\times 10^{-7}]^n}\\1.81=[1.8]^n\\ n=1$

So, rate law = $k[CS_2]^1$

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3 years ago

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Please help me ASAP<br> Will mark brainliest

Tomtit [17]

The first one I believe

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4 years ago

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stira [4]

Answer:

the wheels and force of your foot pushing off of the ground.

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ValentinkaMS [17]

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Which solution has the lowest freezing point?

elena55 [62]

The solution of Ba(OH)2 will have the lowest freezing point. This is because it dissociates into 3 ions, one Ba and 2 OH, which is more than any of the others. Freezing point depression is a colligitive property of water that depends, in part, on the number of ions.

hope it helps

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3 years ago