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WITCHER [35]
3 years ago
14

How many grams of AgNO3 are needed to prepare a 0.25 m solution in 500 grams of water?

Chemistry
1 answer:
tekilochka [14]3 years ago
7 0
21.25 grams would be the answer. I agree
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What property can be used to tell the difference between two minerals, if they have the same hardness?
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Some properties to differentiate between the minerals include:

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6 0
3 years ago
A 48.0g sample of quartz, which has a specific heat capacity of 0.730·J·g−1°C−1, is dropped into an insulated container containi
Butoxors [25]

Answer:

The equilibrium temperature of the water is 26.7 °C

Explanation:

<u>Step 1:</u> Data given

Mass of the sample quartz = 48.0 grams

Specific heat capacity of the sample = 0.730 J/g°C

Initial temperature of the sample = 88.6°C

Mass of the water = 300.0 grams

Initial temperature = 25.0°C

Specific heat capacity of water = 4.184 J/g°C

<u>Step 2:</u> Calculate final temperature

Qlost = -Qgained

Qquartz = - Qwater

Q =m*c*ΔT

Q = m(quartz)*c(quartz)*ΔT(quartz) = -m(water) * c(water) * ΔT(water)

⇒ mass of the quartz = 48.0 grams

⇒ c(quartz) = the specific heat capacity of quartz = 0.730 J/g°C

⇒ ΔT(quartz) = The change of temperature of the sample = T2 -88.6 °C

⇒ mass of water = 300.0 grams

⇒c(water) = the specific heat capacity of water = 4.184 J/g°C

⇒ ΔT= (water) = the change in temperature of water = T2 - 25.0°C

48.0 * 0.730 * (T2-88.6) -300.0 * 4.184 *(T2 - 25.0)

35.04(T2-88.6) = -1255.2 (T2-25)

35.04T2 -3104.544 = -1255.2T2 + 31380

1290.24T2 = 34484.544

T2 = 26.7 °C

The equilibrium temperature of the water is 26.7 °C

8 0
3 years ago
I’ll give Brainliest Faaaaaaast
Bezzdna [24]

Answer:

give me brainliest please?

thank u

Explanation:

8 0
3 years ago
Read 2 more answers
Please help with chemistry homework (I’ll mark brainliest!)
masha68 [24]

Answer:

You answer is correct

Electrons have a negative charge. The charge on the proton and electron are exactly the same size but opposite. Neutrons have no charge.

Thank you and please rate me as brainliest as it will help me to level up

6 0
3 years ago
Given the following equation, what is the actual yield of potassium chloride if the percent yield is 94% and you have 750 g of o
ivanzaharov [21]

Answer:

ly/3gVQKw3

Explanation:

DON'T PRESS ON THAT LINK PLZ

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