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3 years ago

What is the mass of 4.6 moles of helium gas?

Chemistry

2 answers:

dolphi86 [110]3 years ago

7 0

The mass of one mole (molar mass) of helium gas is 4.002602 g/mol .

Otrada [13]3 years ago

6 0

Answer:

18.4 g

Explanation:

M(He) = 4.0 g/mol

4.6 mol * 4.0 g/ 1 mol = 18.4 g

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lbvjy [14]

Answer:

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Explanation:

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3 years ago

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3 years ago

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Sliva [168]

Answer:

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3 years ago

By definition, all acids are harmful for human beings. true or false

bixtya [17]

Answer:

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Explanation:

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3 years ago

Read 2 more answers

Could someone help me with this?

Varvara68 [4.7K]

Solving part-1 only

KMnO_4

Transition metal is Manganese (Mn)

Actually it's the oxidation number of Mn

Let's find how?

$\\ \tt\Rrightarrow x+1+4(-2)=0$

$\\ \tt\Rrightarrow x+1-8=0$

$\\ \tt\Rrightarrow x-7=0$

$\\ \tt\Rrightarrow x=+7$

x is the oxidation number

Purple as per the color of potassium permanganate

$\boxed{\begin{array}{c|c|c}\boxed{\bf Tube} &\boxed{\bf Charge} &\boxed{\bf No\:of\; electrons\: loss}\\ \sf 2 &\sf +6 &\sf 6e^-\\ \sf 3& \sf +2 &\sf 2e- \\ \sf 4 &\sf 4 &\sf 4e^-\end{array}}$

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2 years ago