You are asked to calibrate a 25.00 mL volumetric pipet. You determine the temperature of your distilled water is exactly 30 degrees celsius. You carefully determined the mass of a clean, dry beaker and found it was 60.1703 g. You pulled the water up to the mark and transferred this to the beaker and found that the new mass was 85.2263 g. What is the actualy volume of the pipet? I tried answering the question above by doing 85.2263 - 60.1703 = 25.056 g  I then used 25.056 and multipled it with .995646 (which is the density of water at 30 degrees celsius I believe)  The answer I got is 24.947  I am not sure if I am just doing the problem wrong or if it is simply my signifcant figures that are off? Please help :))

fill in the values for qrxn and delta Hrxn and show how they are calculated

In recent years, there has been a large push for an increase in the use of renewable resources to produce the energy we need to power our vehicles. One of the newer fuels that has become more widely available is E85, a mixture of 85% ethanol and 15% gasoline. Despite being more environmentally friendly, one of the potential drawbacks of E85 fuel is that it produces less energy than conventional gasoline. Assume a car gets 27.5 mi/gal using gasoline at $3.50/gal and 22.0 mi/gal using E85 at $2.85/gal. A.) How much will it cost to drive 750. miles using conventional gasoline fuel? B.)How much will it cost to drive 750. miles using E85 fuel?

High fructose corn syrup is a sweetener found in everyday food items especially carbonated beverages. It is derived from the "fruit" of corn using a bioprocess that degrades corn starch into its constituent sugars. Given the quantity of corn syrup (d = 1.4 kg L^-1) needed for many industries. It should be no surprise that this product is often transported from place to place in tank cars (via railway) where the typical transport mass is 2.290 x 10^5lbs. In the space provided below, calculated the diameter in (meters) of such a tank car's 11.12m long-cylindrical transport container.  Recall that 1 gal =3.785 L, kg= 2.205lbs, and 1cm^3 =exactly 1mL

1. determine the speed of sound on a cold winter day (T=3 degree C). 2. find out the speed in the air at a temperature of 20 degrees celsius. 3.  calcul;ate the speed of sound if the temperature of the vibrating water is 28 degree C

Calculate the kinetic energy of a 4.2 x 10^4 kg airplane moving at a speed of 155.ms Round your answer to 2 significant digits.

A generator consumes (2.690x10^1) L of fuel per hour. For how many minutes could this generator run if there are (2.12x10^1) gallons of fuel available? Given:  1.000 gallon = 3.785 L

how fast is 50.00 mph in m/s? you mustuse the conversion 2.54cm/1inch

how do you perfrm Converting between Celsius 1°C2 and Fahrenheit 1°F2 temperaturescales