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iVinArrow [24]
3 years ago
14

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Chemistry
2 answers:
iogann1982 [59]3 years ago
4 0

Answer:

my big fhat black calwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwlk

viktelen [127]3 years ago
3 0

Answer:

HmmmmmmmmmmI think the answer is 69

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Can I please get help with this question ‍♂️?
guapka [62]

Answer:

1.50 moles of POH or Potassium Hydroxide.

Explanation:

First of all, find the substance formula

The substance formula of Potassium Hydroxide is

KOH

Second of all, if you want to convert from grams to moles, you use molar mass of KOH

Third of all, find the molar mass of KOH.

K = 39.1 amu

O = 16.0 amu

H= 1.0 amu

Potassium has 1 atom, oxygen has 1 atom, and hydrogen has 1 atom.

So do this:

39.1(1) + 16.0(1) + 1.0(1) = 56.1

The molar mass of KOH is 56.1 g/mol.

Fourth of all, use dimensional analysis to show your work.

84.20 grams of KOH * 1 mol/56.1 g/mol

The moles will cancel out.

84.20 divided by 56.1 = 1.500892166

But I have to round my answer to two digits after the decimal points instead of using sig figs.

So I round to the hundredths place

1.500892166 = 1.50

So the final answer is 1.50 moles(don't forget the units) of POH.

Hope it helped!

3 0
3 years ago
Whats the difference between mass and volume
Lady bird [3.3K]

Answer: Volume – How much space an object or substance takes up. Mass – Measurement of the amount of matter in an object or substance.

Explanation:

3 0
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Electromagnetic forces are the predominant force in holding what subatomic particles together?
vova2212 [387]
<span><span><span> </span><span>The strong forces oppose the electromagnetic force of repulsion between protons. Like ”glue” the strong force keeps the protons together to form the nucleus. </span>·  The strong forces and electromagnetic forces both hold the atom together.</span><span> </span></span>
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If you mix equal concentrations of reactants and products, will the reaction proceed to the right or the left? HF(aq)+NO3−(aq)⇌H
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hypompast

Explanation:

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the Rhyniognatha hirsti

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at age 400 million years old

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