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There is 78.2 g of water and the specific heat of water is 1.0 cal/g°C. How many Calories per gram are produced from the combustion of 15.2 g of snack chip if the temperature of the water in the colorimeter went up from 264 K to 318 K?
What is the chemical formula of the "salt" produced by neutralization of potassium hydroxide (KOH). The highest possible oxidation number of nitrogen is
what is the resulting pH when mixing 200.0mL solution of 0.50 N HCl (strong acid) with 300.0mL solution of 0.45 M KOH (string base)
Imagine that you have a 7.00 litre gas tank and a 3.00 litre gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
A 50.0 L steel vessel, filled with CH4 to a pressure of 10.0 atm at 298 K, is heated to 1600 K to convert CH4 into C2H2 . What mass of C2H2can be produced. What pressure does the reactor reach at 1600 K? 2CH4 (g) C2H2(g) + 3H2(g)
Write ground-state electron configurations for these ions, which play important roles in biochemical processes in our bodies. (Use a noble gas core abbreviation) Na^+, Mg^2+ Cl^- K^+
Question- Which of the following ''family'' of phosphate species is least likely to be present in your soda sample. Explain your choice. H3PO4 , H2PO4^- , HPO4^2, PO4^3
When a sample of phosphorus-32 was placed 1 cm from the detector, the intensity of its radiation was measured to be 491 counts per second. What would its activity be 2 cm from the detector
Three gases, nitrogen, helium, and krypton are confined in a 9.00 L vessel at a pressure of 7.00 atm. The vessel contains 5.00 moles of nitrogen, 2.00 moles of helium, and 2.00 moles of krypton. What is the partial pressure of helium
a large flask with a volume of 936 ml is evacuated and found to have a mass of 134.66g. it is then filled to a pressure
Draw the structural formula(s) for the branched constitutional isomer(s) with the molecular formula C7H16 that do not have a methyl
Identify that oxide of nitrogen without reference to thermodynamic data and explain.
what is the slope of an arrhenius plot for the following reaction?2nocl ----gt 2no cl2temperature k k lmolbulls400 6.6
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