In a lab determining the mass of acetylsalicylic acid in an aspirin tablet, I'm having trouble with the dilution part of my calculation. An unknown solution was made by placing an aspirin...

In a lab determining the mass of acetylsalicylic acid in an aspirin tablet, I'm having trouble with the dilution part of my calculation. An unknown solution was made by placing an aspirin...

At STP, air can be considered to be a mixture of ideal gases: 21.1% O<sub>2</sub>, 78.0% N<sub>2</sub> and 1.00% Ar by volume. a) Calculate the partial pressure...

What is the equation set up?

What is the momentum of a system of two particles with these respective masses and velocities: 3.75 kg moving north at 5.6m/s and 4.2 kg moving northwest at 2.3m/s?

A car is turning on a circular path with a constant speed of 7 m/s. If the car mass is 1200 kg and the coefficient of static friction is between the cars tires and the road .68 what is the radius...

I'm struggling to understand on how to do this, I'm currently trying to use dimensional analysis to solve the problems, please help. 1. What is the mass of 12.5 moles of silicon? 2...

A Student moves a box of books with a rope by pulling the rope with a force of 90 N at an angle of 30°. The books have a mass of 20 kg and a coefficient of friction between the box...

the compound xylene consists of 90.49% C and the rest is hydrogen.What is the empirical formula?

1.48 mol carbon tetrafluoride

FeCl3 Mass % of Fe, Cl Express your answer using four significant figures

If you dissolve 300 g of salt in 10 litres of water, what is the density of that solution of salty water? In this particular example, assume that the total volume doesn’t change when salt is added...

Huh Im HAving trouble hh h

m(t) = 6e−0.087t where m(t) is measured in grams. a) Find the initial mass (mass at time t = 0). b) How much of the mass remains after 20 days?

Please answer my qs as fast as possible plzzz.... Tomorrow I have exam.

If 10 drops of 0.5 mol L-1 Na3PO4(aq) had been added to the sample containing excess 0.25 mol L-1 Ca(NO3)2(aq), what mass of precipitate would you expect to produce? You may assume one drop is equal...

sg=0.751 find mass and weight of the gasoline in SI units

When 2 dozen cans of food are placed in a bucket, the mass is 4560g. When 18 cans of food are placed in the same bucket, the mass is 3480 g. What is the mass of the bucket?

it is a small cube and is wooden and it floatTS DENSITY MASS volume prediction result material grams centimeters

The density of iron is 7.86 g/cm3. What is the mass of 15.0 cm3 of iron?

Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction in which water (H2O) and carbon dioxide (CO2) chemically react to form the simple sugar glucose (C6H12O6)...

William D.

Energetic MCAT Coach

Boulder, CO

5.0
(381 ratings)

Kia R.

Learning English Can Be Fun....Let's Do It Together

Bradenton, FL

5.0
(51 ratings)

Ellen S.

Need better grades? Ellen - Certified: Math, English, Test prep.

Waltham, MA

5.0
(365 ratings)