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Solnce55 [7]
3 years ago
7

PLEASE HELP ME IM GIVING 30 POINTS

Chemistry
1 answer:
Digiron [165]3 years ago
4 0
Sorry I need the points
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If the pressure of a gas is 2.43 atm what is it’s pressure in kpa
Viktor [21]

The pressure of the gas is 246 kPa.

<em>p</em> = 2.43 atm × (101.325 kPa/1 atm) = 246 kPa  

8 0
3 years ago
How many moles are in 83.1g of CaBr2​
9966 [12]

Answer:

0.416 mol CaBr₂

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis

Explanation:

<u>Step 1: Define</u>

83.1 g CaBr₂

<u>Step 2: Identify Conversions</u>

Molar Mass of Ca - 40.08 g/mol

Molar mass of Br - 79.90 g/mol

Molar Mass of CaBr₂ - 40.08 + 2(79.90) = 199.88 g/mol

<u>Step 3: Convert</u>

<u />83.1 \ g \ CaBr_2(\frac{1 \ mol \ CaBr_2}{199.88 \ g \ CaBr_2} ) = 0.415749 mol CaBr₂

<u>Step 4: Check</u>

<em>We are given 3 sig figs. Follow sig fig rules and round.</em>

0.415749 mol CaBr₂ ≈ 0.416 mol CaBr₂

8 0
3 years ago
LOILO CIVILIANVEIV.<br> 4. The two new cells formed by mítosis are called
ikadub [295]

Mitosis is where the cell divides its previously-copied DNA and cytoplasm to make two new, identical daughter cells.

8 0
3 years ago
How many moles of carbon are there in a 0.70 g (3.5 carat) diamond?
maksim [4K]

Answer:

3.5 x 10^22 moles of carbon are there in a 0.70 g (3.5 carat) diamond.

Explanation:

In case of diamond, the number of atoms is the same as the number of molecules.

7 0
3 years ago
How does the speed of a sound wave change based on the density of the medium the wave passes through?
Nikitich [7]

Answer:

i think its d i may be wrong

Explanation:

3 0
2 years ago
Read 2 more answers
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