Transcribed TextTranscribed Text

1. Evaluate each of the following expressions. Write your answer in scientific notation and with the correct number of significant figures. a) 6.4 + 5.5 = b) (5x 10²) X (8.0 X 10³) = 2. Convert 1.86 X 105 miles per second to nanometers per week. 3. Calculate the percent by mass of sulfur in Al2(SO4)3. 4. (a) How many moles of P4O10 are there in 50.0 grams of P4O10? (b) How many grams of P4O10 are there in 0.782 moles of P4O10? 5. Balance the following chemical equation: C7H16 + O2 H2O + CO2

Solution PreviewSolution Preview

These solutions may offer step-by-step problem-solving explanations or good writing examples that include modern styles of formatting and construction of bibliographies out of text citations and references. Students may use these solutions for personal skill-building and practice. Unethical use is strictly forbidden.

    By purchasing this solution you'll be able to access the following files:

    50% discount

    $5.00 $2.50
    for this solution

    or FREE if you
    register a new account!

    PayPal, G Pay, ApplePay, Amazon Pay, and all major credit cards accepted.

    Find A Tutor

    View available Chemistry - Other Tutors

    Get College Homework Help.

    Are you sure you don't want to upload any files?

    Fast tutor response requires as much info as possible.

    Upload a file
    Continue without uploading

    We couldn't find that subject.
    Please select the best match from the list below.

    We'll send you an email right away. If it's not in your inbox, check your spam folder.

    • 1
    • 2
    • 3
    Live Chats