chemistry
At elevated temperatures, sodium chlorate decomposes to produce sodium chloride and oxygen gas. A 0.8915-g sample of impure sodium chlorate was heated until the production of oxygen gas ceased. The oxygen gas collected over water occupied 57.2 mL at a temperature of 22°C a...
Statistics
The number of arrivals per period is distributed according to the poisson with the expected value of 0.75 unit per period. the cost of waiting per unit per period is $3.20. The facility cost for serving one unit per period is $5.15. What expected service rate should be establi...
Chemistry
A solution is 0.10M Pb(NO3)2 and 0.10M AgNO3. If solid NaCl is added to the solution what is [Ag+] when PbCl2 begins to precipitate? (Ksp PbCl2 = 1.7 x 10^-5; AgCl = 1.8 x 10^-10) The answers is 1.4 x 10^-8 How do I find the answer
Chemistry
Molarity of NaOH solution = 0.06115 Volume of NaOH used = 15.50 mL Volume of unknown Sample = 10.00 mL Find the Moles of NaOH used? Find the molarity of H3PO4? Thanks!
lit
in "A Pair of Silk Stockings" the silk stockings are a symbol of what?
Math
find the total number of square units the patio will cover if the width is 4,5,6,or 7 units
Math
find the total number of square units the patio will cover if the width is 4,5,6,or 7 units
Chemistry
For solution 1, 4.00mL of 0.0200 M Cr(NO)3 was added to 20.00ml of 0.0200 M Na2H2EDTA, then the a time and absorbance were taken every 5 mins. If at 5:00 min the absorbance was 0.039 how do I find [Cr3+]0, [CrEDTA-]t, and [Cr3+]t. The absorbance at 0:00 mins was 0.039 if it is...
biology
One in every 685 children born in the chicoutimi area of quebec province has tyrosinemia. It is cause by having two copies of the receissive allele. Under the assumptions of Hardy-Weinberg equilibrium, calculate the value of q required to produce this proportion of afflicted n...
lang arts
i dontknow help
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