J.R. S.

10/21/18

I need to find the final temurature of a solution. Starting solutions are combined in a perfect calorimeter. The initial temperature is given and ΔH is given.

The density of each solution is given as 1.00 g/mThe enthalpy of neutralization for the reaction of HBr with NaOH is given below.HBr (aq) + NaOH (aq) → H2O (l) + NaBr (aq) ΔH = -57.3... more

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Chemistry

10/21/18

How many grams of NH3 can be produced from 4.16 mol of N2 and excess H2.

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Chemistry

10/20/18

What is the mass of 21so2 molecules?

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Chemistry

10/19/18

Calculating Reaction Rates

In a combustion experiment, 9 moles of methane gas reacts completely in a 3 L container containing excess oxygen gas in 3.5 s. Express the average rate of production of carbon dioxide gas in units... more

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Math

10/19/18

I need math help ASAP!

Write the equation of the line with...Slope: 3/2y-intercept: (0,3)

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Chemistry

10/19/18

Ethanol (C2H6O) undergoes a combustion reaction with oxygen gas to form two products, one of which is water. How many mL of ethanol would be needed to produce 0.0034 L of H2O?

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Geometry

10/19/18

The grape jelly has a net weight of 30 ounces (OZ) or (1lb. 14 oz.) What is the weight of the jelly in grams?

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How Many In All

10/19/18

andrew discovered a buried a buried treasure box.he opened it up and found that it contained 682 diamond and 117 rubies.he sold 45 gems and bought 130 gems does.how many gems does he have now

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Lipids

10/19/18

Explain how histidine is associated with a cold

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Algebra

10/19/18

The Royal Fruit Company produces two types of fruit drinks.

The Royal Fruit Company produces two types of fruit drinks. The first type is 70% pure fruit juice, and the second type is 95% pure fruit juice. The company is attempting to produce a fruit drink... more

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Chemistry

10/18/18

complex compound syntheses

what is the purpose of cooling a compound during complex compound syntheses?

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Chemistry

10/18/18

Why is histidine associated with cold

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Chemistry

10/18/18

Calculate the amount of moles of Zn(NO3)2 in 163.97 g of zinc nitrate

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Chemistry Ap Chemistry

10/17/18

magnesium ribbon

True or falseIf I have excess magnesium ribbon at the end of the reaction, I don't need to do a titration because I can assume that HCl was completely consumed.

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Chemistry

10/17/18

hard question, please help

Cobalt (II) chloride is commonly obtained from chemical supply houses as a hydrate with the formula CoCl2* 6 H2O. An analysis showed that 25.0 g of this hydrate contains 11.3 g of water. What is... more

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