Sign up for our free STEM online summer camps starting June 1st!View Summer Courses

University of New Mexico

Problem 1
Problem 2
Problem 3
Problem 4
Problem 5
Problem 6
Problem 7
Problem 8
Problem 9
Problem 10
Problem 11
Problem 12
Problem 13
Problem 14
Problem 15
Problem 16
Problem 17
Problem 18
Problem 19
Problem 20
Problem 21
Problem 22
Problem 23
Problem 24
Problem 25
Problem 26
Problem 27
Problem 28
Problem 29
Problem 30
Problem 31
Problem 32
Problem 33
Problem 34
Problem 35
Problem 36
Problem 37
Problem 38
Problem 39
Problem 40
Problem 41
Problem 42
Problem 43
Problem 44
Problem 45
Problem 46
Problem 47
Problem 48
Problem 49
Problem 50
Problem 51
Problem 52
Problem 53
Problem 54
Problem 55
Problem 56
Problem 57
Problem 58
Problem 59
Problem 60
Problem 61
Problem 62
Problem 63
Problem 64
Problem 65
Problem 66
Problem 67
Problem 68
Problem 69
Problem 70
Problem 71
Problem 72
Problem 73
Problem 74
Problem 75
Problem 76
Problem 77
Problem 78
Problem 79
Problem 80
Problem 81
Problem 82
Problem 83
Problem 84
Problem 85
Problem 86
Problem 87
Problem 88
Problem 89
Problem 90
Problem 91
Problem 92
Problem 93
Problem 94
Problem 95
Problem 96
Problem 97
Problem 98
Problem 99
Problem 100
Problem 101
Problem 102
Problem 103
Problem 104
Problem 105
Problem 106
Problem 107
Problem 108
Problem 109
Problem 110
Problem 111
Problem 112
Problem 113
Problem 114
Problem 115
Problem 116

Need more help? Fill out this quick form to get professional live tutoring.

Get live tutoring
Problem 37

(a) What is the mass, in grams, of $2.50 \times 10^{-3}$ mol of ammonium phosphate?

(b) How many moles of chloride ions are in 0.2550 g of aluminum chloride?

(c) What is the mass, in grams, of $7.70 \times 10^{20}$ molecules of caffeine, $\mathrm{C}_{8} \mathrm{H}_{10} \mathrm{N}_{4} \mathrm{O}_{2} ?$

(d) What is the molar mass of cholesterol if 0.00105 $\mathrm{mol}$ has a mass of 0.406 $\mathrm{g}$ ?

Answer

a) 0.373 $\mathrm{g}$

b) 5.736$\cdot 10^{-3} \mathrm{mol}$

c) 0.249 $\mathrm{g}$

d) 386.67 $\mathrm{g} / \mathrm{mol}$

You must be logged in to like a video.

You must be logged in to bookmark a video.

## Discussion

## Video Transcript

okay for option A off this question. First, we need to calculate the Moler Mosque off image for three b 04 We'll amass will be as sure three into 14 when zero for nitrogen less trail into one for high Georgian must last 30 point 97 for Force One. Why four into 16 for excision, which gives us the total Mullah Moss off 100 under than 49.6 grams? Were no. So for the calculating the mask, the mass turns out to be zero point 373 grams or option B. You need to calculate the Mullah Omar's off a l C L three witches, 26.98 grams for aluminium plus three into 35 point full 54 si il giving us the total off 133.3 crumbs were more. For though we need to calculate the moves off, they'll seal three. We just 1.913 inter tenders to four minus three moons. Next to calculate the morning off. Chlorine get O'Brien. We know that one mole off a LL sale three has three moles off glory. Negative violence. So substituting in the values. There are 5.74 into 10 days to par negative. Three moles off glory nines for the We need to go for Option C. We need to calculate the Moler mask off. See eight Edge Tim and four 02 So it into twin for carbon Bless, then into one for hydrogen plus four multiplied with 14 for nitrogen on DDE, two multiplied with 16 for oxygen, which gives us the total Mullah Moss as 194 point 80 grams formal. Now we need to calculate the mass off. See it etched 10 and four or two, which is zero point 248 Calculating the Mullah Omar's for cholesterol lists, we divide zero point 406 by 0.1 05 moments. Multiply it with one move, which gives us the Moler Moss as 386.7 grounds. That's it.

## Recommended Questions