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2 years ago

Please help I really need it ill give brainliest

Chemistry

1 answer:

madam [21]2 years ago

8 0

Answer:

Sorry, I'm trying to think but i cant explain..

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2 years ago

What are the common parts of a nucleotide?

a_sh-v [17]

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2 years ago

What was a major accomplishment of the Apollo mission

denpristay [2]

Hi there!

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3 years ago

slader An experiment is carried out where 13.9 g of solid NaOH is dissolved in 250.0 g of water in a coffee-cup calorimeter. Dis

kvv77 [185]

Answer:

The mass of the surrounding is $M_t = 263.9 \ g$

Explanation:

From the question we are told that

The mass of $NaOH$ is $m = 13.9 \ g$

The mass of water is $m_w = 250.0g$

The chemical equation for the dissociation process is

$NaOH _{(s) } ---> Na^{+}_{(aq)} + OH^{-} _{(aq)}$

The specific heat capacity of the mixture is $c_p = 4.18 J g^{-1} C^{-1}$

The combined mass of the solution is

$M_t = 13 + 250$

$M_t = 263.9 \ g$

The mass of the surround here is the mass of the coffee-cup calorimeter and this contain the mixture ( water and the NaOH ) so the mass of the surrounding is

$M_t = 263.9 \ g$

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3 years ago

Which of the following correctly describes a reaction that forms a disaccharide from two monosaccharides?

Dafna11 [192]

The answer that correctly describes a reaction that forms a disaccharide from two monosaccharides is Galactose + glucose = lactose.
Cellulose is not a disaccharide, glycogen is not a monosaccharide, and sucrose isn't either.

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2 years ago