Christian B.

Tutor for 5 Years

Tutor Satisfaction Guarantee

Writing

TutorMe

Question:

In writing the questions would usually be to proofread an essay and I don't think it would be feasible for me to write an essay with mistakes and then proofread it myself.

Christian B.

Answer:

See question above.

Basic Chemistry

TutorMe

Question:

How many grams of Na3PO4 are required to make 412 mL of a 1.50 M solution? (Use the unit g)

Christian B.

Answer:

First calcuate the moles using Moles = [conc] x Vol(mL) / 1000 mol = 1.5 x 412 / 1000 mol = 0.618 moles of Na3PO4 is required. Next calculate the Mr of Na3PO4 Na x 3 = 23 x 3 = 69 P x 1 = 31 x 1 = 31 O x 4 = 16 x 4 = 64 69 + 31 + 64 = 164 Using the the eq'n moles = mass(g) / Mr mass = 0.618 x 164 = 101.352 g So to the nearest gram you require 101 g. of solid sodium phosphate.

Algebra

TutorMe

Question:

Solve 5(-3x - 2) - (x - 3) = -4(4x + 5) + 13

Christian B.

Answer:

Multiply factors. -15x - 10 - x + 3 = -16x - 20 +13 Group like terms. -16x - 7 = -16x - 7 Add 16x + 7 to both sides and write the equation as follows 0 = 0 The above statement is true for all values of x and therefore all real numbers are solutions to the given equation.

Send a message explaining your

needs and Christian will reply soon.

needs and Christian will reply soon.

Contact Christian

Ready now? Request a lesson.

Start Session

FAQs

What is a lesson?

A lesson is virtual lesson space on our platform where you and a tutor can communicate.
You'll have the option to communicate using video/audio as well as text chat.
You can also upload documents, edit papers in real time and use our cutting-edge virtual whiteboard.

How do I begin a lesson?

If the tutor is currently online, you can click the "Start Session" button above.
If they are offline, you can always send them a message to schedule a lesson.

Who are TutorMe tutors?

Many of our tutors are current college students or recent graduates of top-tier universities
like MIT, Harvard and USC.
TutorMe has thousands of top-quality tutors available to work with you.