Calcium hydride reacts with water to form hydrogen gas: CaH2(s) + 2 H2O(l) → Ca(OH)2(aq) + 2 H2(g)Determine the number of grams of CaH2 are needed to generate 55.0 L of hydrogen gas at a pressure of 0.995 atm and a temperature of 32°C.

A reaction occurs in a sealed vessel with a pressure of [x] atm, at [y] ºC, [z] g of NO2 is produced. Calculate the volume of NO2 in the vessel, in L, after the reaction occurs.

How many grams of XeF6 are required to react with 0.579 L of hydrogen gas at 2.46 atm and 45°C in the reaction shown below? XeF6(s) + 3 H2(g) → Xe(g) + 6 HF(g)

Give the minimum value in the data set.45, 33, 51, 39, 57, 53, 31, 58, 43, 35, 53

Write your answer in the space provided. Find the standard deviation of the data, round your answer to the tenths place.                                             45, 33, 51, 39, 57, 53, 31, 58, 43, 35, 53

Enter you answer for the midquartile of the data.  Round (if necessary) to the tenths place.45, 33, 51, 39, 57, 53, 31, 58, 43, 35, 53

Chebyshev’s theorem states that approximately 90% of entries will fall within three standard deviations above and below the mean.   Give just the upper value that defines this interval.  Round your answer to the ones place.

A biochemist wants to make [x] mL of a lobster blood solution by adding distilled water to [y] mL of a [z] M lobster blood stock solution. What is the concentration of their new lobster blood solution in mM?

Enter your answer for Quartile 3 of the data set.45, 33, 51, 39, 57, 53, 31, 58, 43, 35, 53                                       

Find the 95% confidence interval for the standard deviation of the weight of ten-gallon drums of motor oil:if a sample size of 20 of these drums had a variance of 3.2 ounces.For question 17, give the table value you are going to use in your set up for Chi-squared right. For question 18, give the table value you are going to use in your set up for Chi-squared left.For question 19, give the highest value of your calculated standard deviation of the 95% confidence interval. (Hint/reminder: Chi-squared tables use degrees of freedom)