# Mateo Aguilar

Chemistry teacher | Experienced educator in USA

I'm a Chemistry graduate from Macalester College, passionate about unraveling the mysteries of science. With a solid foundation in chemistry, I thrive on demystifying complex concepts and fostering a deep understanding among my students. My journey at Macalester has equipped me with invaluable skills to engage learners across various subjects. Whether it's stoichiometry or organic chemistry, I aim to cultivate a dynamic learning environment where curiosity flourishes. Through personalized guidance and interactive sessions, I empower students to embrace the wonders of science and excel in their academic pursuits. Let's embark on a transformative learning journey together.

## Questions

The first-order decay of radon has a half-life of 3.823 days. How many grams of radon decompose after 5.55 days if the sample initially weighs 100.0 grams?

A heliox deep-sea diving mixture contains 2.0 g of oxygen to every 98.0 g of helium. What is the partial pressure of oxygen when this mixture is delivered at a total pressure of 8.2 atm?

Which has higher energy, #lambda# of 674 nm or #lambda# 480 nm?

How many moles are in a gas in 890mL at 21 °C and 750 mmHg?

What do atoms and molecules have?

#2xx10^-3*L# of #NaOH# of #0.200*mol*L^-1# concentration is added to #1.00*L# of #1.00*mol*L^-1# #Ca(NO_3)_2(aq)#...will calcium hydroxide precipitate?

What are some real life Hess law applications?

How much energy is needed to convert 23.0 grams of ice at -10.0°C into steam at 109°C?

How do you solve gas laws problems with the given "at STP" and with mass?

In a #5*kg# mass of urea, what is the mass of nitrogen?

Is intermolecular hydrogen bonding considered a van der Waals force?

There are two compounds of titanium and chlorine. One compound contains 31.04% titanium by mass, and the other contains 74.76% chlorine by mass. What are the ratios of titanium and chlorine atoms in the two compounds?

What properties of carbon explain carbon's ability to form many different macromolecules?

Will every solid with the same dimensions have the same density?

If a chemist needs to make 35.05 g of #CuI_2#, how many mL of a 3.3 M solution of #NaI# must he use, assuming there is excess copper (II) nitrate?

What is an f orbital?

What are the electron configurations for I and N3?

You dilute a 1 mL solution of a compound to 5 mL and find that the final concentration is 400 µg/mL. What was the original concentration?

What is the correct formula for the compound made by magnesium and nitrogen?

If you have solids that need to be dissolved, what can you do to speed the process up?