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ruslelena [56]
3 years ago
9

Venus is making soup. She is putting her ingredients into a pot of water. She places small amounts of the ingredients into water

and heats up the pot on the stove. She slowly stirs the pot on the stove. What should Venus do to speed up the rate the ingredients are dissolving?
A She should place larger amounts of ingredients into the water.
B She should take the pot off of the heat to lower the temperature.
C She should place the pot in the fridge to cool it down.
D She should stir the pot of ingredients faster.
Chemistry
2 answers:
iogann1982 [59]3 years ago
8 0

Answer:

Your answer is D

Explanation:

This is the only viable solution due to the fact that first of all the other options would slow down the dissolving of the ingredients, second of all when you are trying to dissolve ingredients faster you should stir faster because when you stir faster you distribute the particle faster thus speeding up the process. Therefore that is my proof that your answer is D.

Hope this Helps!

ELEN [110]3 years ago
5 0

Answer:

D

Explanation:

increase in rate of stiring leads to an increase in rate of which the ingredients will dissolve

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Assume that concentrated aqueous NH3 has a density of 0.252 g/mL (0.252 g of NH3 per mL of liquid). Calculate the volume of NH3
Kobotan [32]

The question is incomplete, here is the complete question:

Assume that concentrated aqueous NH₃ has a density of 0.252 g/mL (0.252 g of NH₃ per mL of liquid). Calculate the volume of NH₃ required to contain 0.442 mol?

<u>Answer:</u> The volume of ammonia required is 29.82 mL

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Molar mass of ammonia = 17 g/mol

Moles of ammonia = 0.442 moles

Putting values in above equation, we get:

0.442mol=\frac{\text{Mass of ammonia}}{17g/mol}\\\\\text{Mass of ammonia}=(0.442mol\times 17g/mol)=7.514g

To calculate the volume of ammonia, we use the equation:

\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}

Density of ammonia = 0.252 g/mL

Mass of ammonia = 7.514 g

Putting values in above equation, we get:

0.252g/mL=\frac{7.514g}{\text{Volume of ammonia}}\\\\\text{Volume of ammonia}=\frac{7.514g}{0.252g/mL}=29.82mL

Hence, the volume of ammonia required is 29.82 mL

4 0
3 years ago
What is the % of water in (MgSO4 . 2H2O)?
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Answer: A hydrate is found to have the following percent composition: 48.8% MgSO4 and 51.2% water.

Explanation:

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7 0
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igor_vitrenko [27]

The process is called electrolysis.

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A line in the Brackett series of hydrogen has a wavelength of 1945 nm. From what state did the electron originate?
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Rydberg Eqn is given as:
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<span>Some rearranging and collecting up terms: </span>
<span>1 = (2.626×10^-6)×(1.09737× 10^7)[1/16 -1/n2^2] </span>
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4 0
3 years ago
Read 2 more answers
2. What is the total number of grams of KCl in 1.00L of 200M solution?
ElenaW [278]

Answer:

83.99 KC1 1.

Explanation:

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7 0
3 years ago
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