October 28, 2021, 07:06:00 AM
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Topic: how to solve this WEIGHT/MOLE CALCULATIONS  (Read 278 times)

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Offline melRoberts555_Bio

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how to solve this WEIGHT/MOLE CALCULATIONS
« on: September 11, 2021, 03:02:23 AM »
Hello people! I was wondering if you could help me solve this problem. I know it must be simple  but I am new in this whole analytical chemistry and I feel a bit confused- I would appreciate it

Problem:

1. Calculate the number of millimoles contained in 500 mg of BaCrO4

2. Calculate the number of grams that would have to be dissolved and diluted to 100 mL to prepare a 0.200 M solution.
« Last Edit: September 11, 2021, 06:39:45 AM by sjb »

Offline Borek

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Re: how to solve this WEIGHT/MOLE CALCULATIONS
« Reply #1 on: September 11, 2021, 03:12:14 AM »
Please read the forum rules. You have to show your attempts at answering the question/solving the problem to receive help, it is a forum policy.

What formulas combining molar mass, mass and number of moles do you know?
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