# QUANTITATIVE SKILLS LEVEL 1

Concentration and Dilution Calculations

Objective Measured

Evaluate the accuracy and reasonableness of calculations.

Convert numbers from standard to scientific notation format.

Perform calculations for preparing a weight per volume percent and percent by volume or weight solutions.

Perform calculations to determine the amount of solute to add to create a solution, given a final description of normality, molarity, or molality.

Perform calculations given a standard equation and one or more variables.

Performance Assessed

Individual will be asked to talk-aloud about the problem-solving approach and each step of the calculation.

Given a number in standard format, the individual will provide the number in scientific notation.

Calculations performed to determine how much solute and solvent to use to prepare a given solution.

Calculations performed to determine how much solute and solvent to use to prepare a given solution.

Credential Alignment

Washington Biotechnology/Biomedical Skill Standards

B2 Conduct simple analyses of data and process information

B4 Troubleshoot experiments and equipment and perform data analysis. Mathematical formulae are correctly selected and applied. Correct data set is used. Calculations are properly documented. Data integrity is preserved. Out-of-range or out-of-specifications results are identified.

BACE

Skill Category: Applied Mathematics in Biotechnology

Use scientific notation, significant digits, and decimals correctly

Perform calculations for serial dilutions

Perform calculations using dilution ratios

Make conversions within the metric system, and use metric measurements

– Solve Volume/Volume (V/V) and Weight/Volume (W/V) solution calculations

– Solve Molarity solution calculations

– Solve Dilution Factor calculations

Core Skill Standards for Bioscience Technicians

Critical Work Function: Perform mathematical manipulations

Key Activities

Perform calculations relating to work function

Given an equation, and 1 or more values, the student will be asked to solve the equation.