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3 years ago

WILL GIVE BRAINLIEST AND 5 STARS what is the purpose/ use of a Bunsen Burner

2 answers:

5 0

A Bunsen burner, named after Robert Bunsen, is a common piece of laboratory equipment that produces a single open gas flame, which is used for heating, sterilization, and combustion. The gas can be natural gas (which is mainly methane) or a liquefied petroleum gas, such as propane, butane, or a mixture of both. Have A Great Day :)

ZanzabumX [31]3 years ago

4 0

Answer:

Hope this helps yu!

n thanks if yu give brainliest!

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I need help on science I have a 89 on my report card for science and I need to get it to a 98

Hunter-Best [27]

Sorry but I only know a few
17- decomposers
18- decomposition
21- 10% is lost so 90%

8 0

3 years ago

Calculate the mass of nitric acid required to make a 250mL solution with 2.40 ph

meriva

The mass of nitric acid required to make the given solution is 0.0627 g.

The given parameters:

Volume of the acid, V = 250 mL
pH of the acid, = 2.4

The hydrogen ion (H⁺) concentration of the nitric acid is calculated as follows;

$H^+ = 10^{-pH}\\\\H^+ = 10^{-2.4}\\\\H^+ = 0.00398$

The molarity of the nitric acid is calculated as follows;

$= 0.00398 \ H^+ \times \frac{1 \ M \ HNO_3}{1 \ H^+} \\\\= 0.00398 \ M$

The number of moles of the nitric acid is calculated as follows;

$moles = M\times L\\\\moles = 0.00398\ M \ \times \ \frac{250 \ mL}{1000} \\\\moles = 9.95 \times 10^{-4} \ mol.$

The molar mass of nitric acid is calculated as;

$HNO_3 = (1) \ + (14) \ + (16 \times 3) = 63 \ g/mol$

The mass of the nitric acid contained in the calculated number of moles is calculated as;

$mass = moles\ \times \ molar \ mass\\\\mass = 9.95\times 10^{-4} \ mol. \ \times \ 63 \ g/mol\\\\mass = 0.0627 \ g$

Thus, the mass of nitric acid required to make the given solution is 0.0627 g.

Learn more about molarity of acids here: brainly.com/question/13864682

3 0

2 years ago

What are some physical properties that could have helped to identify a mystery powder?

Rus_ich [418]

i dont really know i will find some more information on that in about 5 minutes

6 0

3 years ago

POINTSSS!!!!!!

Lelu [443]

1 mole CO₂----------- 6.02x10²³ molecules
4 moles CO₂ ---------- ??

4 x ( 6.02x10²³) / 1 =

= 2.41 x 10²⁴ / 1 => 2.41 x 10²⁴ molecules of CO₂

Answer C

4 0

3 years ago

(Extra points+Brainliest Answer, :) happy holidays)

grigory [225]

the answer is 360 g H2O with a 90.3 yeild percentage

7 0

3 years ago

Read 2 more answers