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Juli2301 [7.4K]
3 years ago
9

A certain sample of a liquid has a mass of 42 grams and a volume of 35 centimeters3. What is the density of the liquid?

Chemistry
2 answers:
anygoal [31]3 years ago
5 0

 1.2 g.cm⁻³


Solution:


Data Given:


                             Mass  =  42 g


                             Volume  =  35 cm³


Formula Used:


                             Density  =  Mass ÷ Volume


Putting values,


                             Density  =  42 g ÷ 35 cm³


                             Density  =  1.2 g.cm⁻³


Read more on Brainly.com - brainly.com/question/10869368#readmore

BabaBlast [244]3 years ago
3 0

Answer:

            1.2 g.cm⁻³

Solution:

Data Given:

                             Mass  =  42 g

                             Volume  =  35 cm³

Formula Used:

                             Density  =  Mass ÷ Volume

Putting values,

                             Density  =  42 g ÷ 35 cm³

                             Density  =  1.2 g.cm⁻³

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How many moles of calcium, Ca, are in 5.00 g of calcium?
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<h3>Answer:</h3>

0.125 mol Ca

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
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<u>Chemistry</u>

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<h3>Explanation:</h3>

<u>Step 1: Define</u>

5.00 g Ca

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

Molar mass of Ca - 40.08 g/mol

<u>Step 3: Convert</u>

  1. Set up:                               \displaystyle 5.00 \ g \ Ca(\frac{1 \ mol \ Ca}{40.08 \ g \ Ca})
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<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

0.12475 mol Ca ≈ 0.125 mol Ca

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2 years ago
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