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Stoichiometry:
-Calculate the moles of PCl3 that will be made from 20 g of Cl2. (Remember to balance the equation first!)
P + Cl2 à PCl3
-For the equation above, calculate the grams of PCl5 if you start with 100 g of P
Neurospora is used as genetic material because A. it has short life cycle of 10 days B. the product of single meiosis can be easily analysed
A sample of a compound is analyzed and found to contain 17.204g K , 7.062g S, and 14.080g O. What is the percent composition of this compound?
If 44.9 ml of 0.179 M hydrochloric acid requires 21.2 ml of the NaOH solution to reach the endpoint, what is the molarity of the NaOHsolution?
Question- An ideal gas in a sealed container has an initial volume of 2.40 L. At constant pressure, it is cooled to 21.00 °C where its final volume is 1.75 L. What was the initial temperature
the density of a certain aqueous solution is 1.17gml and the solution is 3.57 by mass naoh. how many ml of this
An aircraft is flying at Mach 0.95 at an altitude where the pressure is 30 kPa and the temperature is -50°C. The diffuser at the intake to the engine decreases.
A compound is 40.0%C, 6.70%H, and 53.3%O by mass. Assume that we have a 100.g sample of this compound. What are the subscripts in the empirical formula of this compound?
?The star Proxima Centuri is of apparent magnitude 11.05 and Absolute Magnitude +15.4. Select the correct answer for the distance to the star in parsec (pc)?
Explain what volume of carbon dioxide is required to produce 50.0 L of carbon monoxide according to the following reaction? CO2+ C ---> 2 CO↑
Question- Consider the following cell: Pt|H2(g, 0.725 atm)|H (aq, ? M)||Ag (aq, 1.00 M)|Ag(s) If the measured cell potential is 1.10 V at 25 °C and the standard reduction potential of the Ag /Ag half-reaction couple is 0.80 V, calculate the hydrog..
If a gas occupies 625 mL at 0 Celsius and 760 torr pressure, what will its volume be at 373 degree C and 1520 torr pressure? How would you describe how to separate a mixture of oil, sand, and saltwater.
Balance the following equation, using the smallest possible integer coefficients. Then enter the 4 coefficients in the 4 answer boxes. (Suppose the coefficients were 6, 5, 4 and 3 for the 4 substances, from left to right in the equation.
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