Answer:
1809.9 Grams of Calcium Nitrate
Explanation:
Calcium Nitrate Ca(NO3)2
Molar Mass: 164.086g/mol
Given: 11.03 mol of Ca(NO3)2 x 164.086g/mol = 1809.9 Grams of Calcium Nitrate
1) Molar composition
Base: 100 g
C: 40.00 g / 12.0 g /mol = 3.333 mol
H: 6.72 g / 1 g/mol = 6.72 mol
O: 53.28 g / 16g/mol = 3.33 mol
2) Divide by the smaller number of moles
C: 3.333 / 3.33 = 1.00
H: 6.72 / 3.33 = 2.02 ≈ 2
O: 3.33/3.33 = 1.00
3) Empirical formula
CH2O
molar mass of the empirical formula = 12 g/mol + 2*1g/mol + 16 g/mol = 30 g/,ol
4) Number of times that the mass of empirical formula is contained in the molar mass = 180 g/mol / 30 g/mol = 6
5) Molecular formula = 6 times the empirical formula
=>C6H12O6
Answer: C6H12O6
<h3>
Answer:</h3>
6.26 g C
<h3>
General Formulas and Concepts:</h3>
<u>Math</u>
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Chemistry</u>
<u>Atomic Structure</u>
- Reading a Periodic Table
- Moles
- Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
<u>Stoichiometry</u>
- Using Dimensional Analysis
<h3>
Explanation:</h3>
<u>Step 1: Define</u>
[Given] 3.14 × 10²³ atoms C
[Solve] grams C
<u>Step 2: Identify Conversions</u>
Avogadro's Number
[PT] Molar Mass of C - 12.01 g/mol
<u>Step 3: Convert</u>
- [DA] Set up:
- [DA] Multiply/Divide [Cancel out units]:
<u>Step 4: Check</u>
<em>Follow sig fig rules and round. We are given 3 sig figs.</em>
6.26227 g C ≈ 6.26 g C
The Patch's area of the space shuttle in km² is 2.07 × 10⁻⁹ km²
Given, that a space shuttle requires a 20.7 cm² patch
We have to convert the patch's area from cm² into km².
Unit conversion is a method in which we multiply or divide with a particular numerical factor and then finally round off to the nearest significant digits.
Patch area of the space shuttle is 20.7 cm²
1 cm = 0.00001 km
or, 1 cm² = (0.00001 km)²
or, 1 cm² = 10⁻¹⁰km²
20.7 cm² = 20.7 × 10⁻¹⁰km²
20.7 cm² = 2.07 × 10⁻⁹ km²
The patch area in square kilometers is 2.07 × 10⁻⁹ km²
To learn more about unit conversion, visit: brainly.com/question/11543684
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