3 years ago

How much potassium would I need to have exactly 5 moles of potassium?

Chemistry

1 answer:

miskamm [114]3 years ago

7 0

Answer:

195.4915

Explanation:

Pls mark brainliest

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If 11g of a gas occupies 5.6dm'3at s.t.p., calculate it's vapour density (1.0mol of a gas occupies 22.4dm'3at s.t.p.).

11111nata11111 [884]

Answer:

${ \boxed{ \bf{vapour \: density = 2 \times molecular \: mass}}} \\{ \tt{ PV= (\frac{m}{ m_{r}}) RT}} \\ { \tt{3 \times 5.6 = \frac{11}{m _{r}} \times 0.0831 \times 273}} \\ { \tt{m _{r} = 14.85 \: g}} \\ \\ { \bf{vapour \: density = 2 \times m _{r}}} \\ = 2 \times 14.85 \\ = 29.7 \: { \tt{g {dm}^{ - 3} }}$

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3 years ago

What is the Formula for iron metal.

son4ous [18]

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3 years ago

Read 2 more answers

Convert 296 degrees Celsius to Kelvin.<br> A. 23 K<br> B. 552 K<br> C. 569 K<br> D. 550 K

katovenus [111]

Answer:

option c) 552 K is correct

Explanation:

we know that

0° C +273= 273 K

296° C+273=569 K

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