When 18.0 g of CS2 reacted with excess Cl2, the amount of carbon tetrafluoride (CCl4) that was obtained from the reaction was 24.1 g. Calculate the percent yield of carbon tetrachloride.   CS2  + 3Cl2  —>  CCl4  +  S2Cl2CS2      76.13 g/molCl2       70.90 g/molCCl4    153.81 g/molS2Cl2   135.02 g/mol

Ten identical copies of a movie are stored on 40 computers such that each computer has at most 1 copy. How many different ways can the 10 copies be stored?

How many 14 – bit strings are there in which the first bit is 1 and there are exactly five 0 s?

What is the main goal of a yardstick report?

Which of the following is true about Nand2Tetris HDL use for our class?

Questions 1-3 are based on the same truth table below.   Which of the following represents the Boolean function in sum-of-minterms (meaning, don’t simplify) form?

Which of the following pairs are both universal gates?

[Continuation] A research article indicates that students listen to different types of audio while studying in the following proportions:•    35% listen to music with lyrics •    30% listen to instrumental music •    20% listen to white noise or ambient sounds •    15% study in silenceTo test the article’s claim, a University Study Center randomly samples 200 students to study their responses to the four categories. Have the Chi-square assumptions been met?

A certain company consistently gets 25% positive reviews of their customer service. After implementing policy and training improvements, the company hopes to show an increase in the proportion of positive reviews. The following hypothesis test was conducted with alpha = 0.05. Which of the following represents the correct decision and conclusion for this test?

A researcher surveys 200 students and records both their class year (freshman, sophomore, junior, senior) and their preferred study location (library, dorm, coffee shop). The Chi-square test statistic results in a P-value = 0.07. What conclusion can be made at the 5% level of significance?