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VMariaS [17]
3 years ago
9

A 20.00-mL sample of a weak base is titrated with 0.0568 M HCl. At the endpoint, it is found that 17.88 mL of titrant was used.

What was the concentration of the weak base?
Chemistry
1 answer:
nata0808 [166]3 years ago
7 0

Answer: 0.0508mL

Explanation: Using the basic formula that states: C acid * V acid = C base * V base. we have:0.568 * 17.88 = 20 * C base.

therefore concentration of the base is 1.0156/20 = 0.0508 mL

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In the following reaction, how many grams of silver can be produced from 49.1 g copper?
notsponge [240]

166.4 g Ag grams of silver can be produced from 49.1 g of copper.

<h3>What is a mole?</h3>

A mole is a very important unit of measurement that chemists use. A mole of something means you have 602,214,076,000,000,000,000,000 of that thing, like how having a dozen eggs means you have twelve eggs.

1 mol Cu + 2 mol AgNO_3 → 2 mol Ag + 1 mol Cu(NO3)2

63.55 g Cu —> 2 x 107.688 g Ag

63.55 g Cu gives 215.376 g of Ag

So, 49.1 g Cu —> \frac{215.376 g X 49.1 g}{63.55 g}

= 166.4 g Ag

Hence, 166.4 g Ag grams of silver can be produced from 49.1 g of copper.

Learn more about moles here:

brainly.com/question/26416088

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5 0
2 years ago
Fossil A is found in a rock layer above a layer containing Fossil B. Which fossil is probably older?
ch4aika [34]

Answer:

Fossil B

Explanation:

Fossil B is older because it's later is at the bottom

4 0
3 years ago
What is carbon? What does it do?
Archy [21]

Answer:

Carbon is in carbon dioxide, which is a greenhouse gas that works to trap heat close to Earth. Carbon is the chemical backbone of life on Earth. Carbon compounds regulate the Earth's temperature, make up the food that sustains us, and provide energy that fuels our global economy. Most of Earth's carbon is stored in rocks and sediments. The rest is located in the ocean, atmosphere, and in living organisms

Explanation:

Hope it helps. Can you give me BRAINLIEST ANSWER. Thank you

7 0
2 years ago
Find the speed of a mouse that runs 33 feet in 3 seconds.
NeTakaya
The speed of the mouse is 11 ft/s
6 0
3 years ago
How much energy is generated from freezing 2.5 g water
zvonat [6]
200 calories.
Explanation:
The (latent) heat of fusion of a material, is either one of:
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2) the heat removed from the material to freeze it
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For water this latent heat is 80 cal/g. Multiply this by
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6 0
3 years ago
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