All categories

3 years ago

What is the main reason for using a data table to collect data?

Chemistry

1 answer:

Gelneren [198K]3 years ago

5 0

Answer:

Explanation:

table of data help us to understand and present our work better

You might be interested in

P is the pressure in atmospheres (atm), V is the volume in liters (L), n is the number of moles, R is the gas constant (0.0821 L

yKpoI14uk [10]

Answer:

The mass of the neon gas m = 1.214 kg

Explanation:

Pressure = 3 atm = 304 k pa

Volume = 0.57 L = 0.00057 $m^{3}$

Temperature = 75 °c = 348 K

Universal gas constant = 0.0821 $\frac{L . atm}{mol K}$

We have to change the unit of this constant. it may be written as

Universal gas constant = 8.314 $\frac{KJ}{mol K}$

Gas constant for neon = $\frac{8.314}{20}$ = 0.41 $\frac{KJ}{kg K}$

From ideal gas equation,

P V = m R T ------- (1)

We have all the variables except m. so we have to solve this equation for mass (m).

⇒ 304 × $10^{3}$ × 0.00057 = m × 0.41 × 348

⇒ 173.28 = 142.68 × m

⇒ m = 1.214 kg

This is the mass of the neon gas.

4 0

3 years ago

The iupac name this compound

MrRa [10]

Answer:

It's HYDROXIDE

Explanation:

You do not call it as hydroxide ion because ion always have + or -

I hope this helps

HAVE A GOOD DAY!

5 0

3 years ago

Read 2 more answers

What are bacteria? Chapter 7 lesson 2 AYU

Maru [420]

Answer:

a group of unicellular microorganisms

7 0

3 years ago

Read 2 more answers

Determine the expected diffraction angle for the first-order diffraction from the (111) set of planes for FCC nickel (Ni) when m

faust18 [17]

Answer:

56°

Explanation:

First calculate $a:$

$a=2 R \sqrt{2}=2(0.1246) \sqrt{2}=0.352 \mathrm{nm}$

The interplanar spacing can be calculated from:

$d_{111}=\frac{a}{\sqrt{1^{2}+1^{2}+1^{2}}}=\frac{0.352}{\sqrt{3}}=0.203 \mathrm{nm}$

The diffraction angle is determined from:

$\sin \theta=\frac{n \lambda}{2 d_{111}}=\frac{1(0.1927)}{2(0.2035)}=0.476$

Solve for $\theta$

$\theta=\sin ^{-1}(0.476)=28^{\circ}$

The diffraction angle is:

$2 \theta=2\left(28^{\circ}\right)=56^{\circ}$

4 0

3 years ago

THE ANSWER IS Magnesium hydroxide (Mg(OH)2): 58.33 Iron(III) oxide (Fe2O3): 159.70

dangina [55]

Answer:

Ok, thanks?

Have a good day

5 0

3 years ago