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calculate the energy required to bring your substance from absoluter 0 to 4000 degrees c , if you have 5g,75g,300g,1000g,1.5 of your substance.
A small cube of aluminum measures 15.6 mm on a side and weighs 10250 mg. what is the volume of this cube in cubic cm? how would I find this out.
The Cl^- concentration in the water analysis given has been questioned. What concentration of Cl^- (mg/L) would make the cations and anions balance?
Arrange the bases in increasing order of strengths. I) deuterated ammonia (ND3) Kb = 1.1 × 10?5 II) hydrazine (NH2NH2) Kb = 1.7 × 10?6 III) ammonia (NH3) Kb = 1.8 × 10?5
A student heats 5.128 g sodium bicarbonate to completely decompose the sample to sodium carbonate. 3.2349 g of sodium carbonate was produced. Calculate the atom economy of this reaction.
You Have 500 mL of a buffer solution containing .2 M CH3COOH and .3 M CH3COONa. What will the pH of this solution be after the addition of 20 mL of 1.00 M NaOH solution? (Ka=1.8x10^-5)
Calcium in a mineral was analyzed five times by each of two methods. Are the mean values significantly different at the 95% confidence level? Method1: 0.0271 0.0282 0.0279 0.0271 0.0275 Method2: 0.0271 0.0268 0.0263 0.0274 0.0269 Chemistry
If 17.0 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ammonia?
What is the volume of the container needed to store 0.8 moles of argon gas at 5.3 atm and 227°C.
Considering given equation as P4(s) + 5 O2(g) P4O10(s) where ΔH = -3013 kJ/mol you just need to compute the heat evolved when 436 grams of white Phosphorous (P4)burns in air according to the given equation as above.
How many grams of water can be cooled from 37 C to 20 C by the evaporation of 45 gm of water?
One brand of laundry bleach is an aqueous solution containing 4.00% sodium hypochlorite by mass.What is the molarity of this solution.
Determine at what temperature will a sample of air containing 5.0x10^14 Peroxyacetyl nitrate molecules per liter decomposes at the rate of 1.0x10^12 Peroxyacetyl nitrate molecules per liter per minute.
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